Ab763 Mods


Note: if you're going to do the Lead Channel Mod then do it first because this mod moves the Normal channel coupling cap across the cathode resistor and bypass cap. The Luxe Reverb, while based on the infamous AB763, is far from it. D’ailleurs, ce silverface est “blackline” (transition immédiate depuis les modèles précédents Blackface) : notez les bandes noires verticales. Fender Reverb Unit: Both modern reissue and vintage Fender Reverb Units (the separate stand-alone tube models) can benefit from this mod which greatly enhances the depth of the reverb effect. The original 4 Ohm version! The classic! Like the vintage era originals, this output transformer is paper layer wound and uses the best, cool running, grain oriented M-6 steel lamination for incredible performance and tone!. Most important is the richer and fuller tone. You can buy all the parts there for a deluxe reverb build for about $750, with no cabinet. Amp Fender Vibrolux Reverb Fender Pro Reverb Fender Super Reverb Fender Twin Reverb Fender. A choke is a toroid, or an inductor, used to filter out unwanted noise and alternating current. Much as the Hot-Rod enthusiast is forever tinkering with his ‘wheels’ to be ‘just a little different’, so are guitar players forever tinkering with their guitars and amplifiers in an effort to be ‘just a little different’. The AB763 design is also to be found in some silverface amps between 1967 and 1969. Most of our great amps are available in kit form at substantial savings due to the extensive amount of time involved in the point-to-point hand wiring. The chassis is stamped A 38590. it's not the speakers,. Was the same AB763 circuit design used in many of the same blackface amps? I know there are little differences between all the various models offered. The NORMAL channel is long gone to make room for the new Lead channel, while the beauty of the vibrato channel remains intact. Vintage Blackface Deluxe Reverb AB763 Replacement Tube Chart - 1964 These tube charts are specially aged for an authentic look. '65 Deluxe Reverb®, 120V. Early 1969 Drip Rail Super. Now locate the capacitor that is the output of the second gain stage in the Vibrato channel— typically a. You might want to check out this page:. Fender Vibrolux Reverb Aa964 Schematic >>>CLICK HERE<<< Last of the original Fender handwired amps, the wiring looks messy but I bet it The Vibrolux had two modern schematics: Early 60s (AB763 no reverb but the 2 x 10 Vibrolux REverb was introduced in 1964 with the schematic AA964. Hi Dave, Let's see if I can help. The "Ground" switch is kinda misleading. The cab also houses a 12-inch Jensen C-12Q ceramic speaker with a smaller magnet that aims to closely replicate the breakup from an original Sixties-era Jensen. Physically, parts were designed to look similar to original factory units (where possible). This project originated from an article by Anthony Leo in the November 1968 issue of the Electronic Australia Magazine. The Fender Princeton Reverb 2 (wrongly named here on purpose to help people searching for "2" as well as "II") is a 22W single-channel tube/valve guitar amplifier combo designed by Ed Jahns under the supervision of Paul Rivera (see the magazine article) and produced by Fender between 1982 and 1986. I usually opt for something like. it's not the speakers,. In stock now ! Place your order and we will ship to you as soon as we have them in stocked. AC30 Top Boost 30 watt amp with quad push-pull EL84s with Top Boost Mods - minus Vibrato circuit Plexi Super Lead (1959) 100 watt amp with quad push-pull EL34s with master volume mod Twin Reverb (AB763) with quad push-pull 6L6GCs wi. This mod also puts the two channels in phase so you can jumper them for a thicker tone. You can buy all the parts there for a deluxe reverb build for about $750, with no cabinet. From its venerable 85-watt AB763 quad-6L6 circuit to its inimitable spring reverb and tremolo, Jensen speakers, and tilt-back legs, the Fender '65 Twin Reverb reissue is every inch a classic, a veritable cornerstone of modern American music. org Sadly, Roly Roper, creator of this wonderful repository of wisdom has 'shuffled off this mortal coil' early on Saturday morning, 20/02/2016, peacefully with his faithful companion Bev at his side. I've found the AB763 schematics and some really good info on-line. How to mod a Fender '65 Deluxe Reverb (DRRI) for better reverb control, normal channel reverb mod, normal channel Bassman tone stack mod (like a '68 Custom Deluxe Reverb), and clipping the bright. A great article explaining how the famous Marshall's amplifiers work, showing the way of the signal and what happens with it. This mod comes complete with preamp boost, bright, rock/jazz stitches and ratio and level pots (rear mounted). The last two numbers are the year. Its a fantastic amp. It was gone through last year by our local amp guru and if any parts were replaced they were only period correct and tested for values, or NOS. Kills the value. Some time in 1966 or 1967, Valco started using a Hammond reverb tank instead of the cardboard box tank they had been using since 1961. In a non-master volume amp this control does not exist. Deluxe Verb: based on ’65 blackface Fender Deluxe Reverb, AB763 circuit The Fender Deluxe Reverb, aka DR, isn’t the Deluxe with reverb added. "Blackfacing" an amp is a little overrated. This mod also puts the two channels in phase so you can jumper them for a thicker tone. The point is , the headstrong had exactly the same mods as this one. Showcasing anointed gear pro in stock and ready for shipping here online. The MOD tank sounds like a vintage Accutronics made in Geneva, IL lots of depth, warm tone with medium decay. savoy New Member. Sounds Amazing! Recently recapped with Vintage Fender Twin Reverb 100W Master Volume caps by Fromel. By original design the tremolo circuit will absorbe current/signal even when one turns the tremolo off with the footswitch. I have a 1967 Silverface Deluxe-Reverb amp here, my father traded his dodge for it back in 68‘. From what I understand mainly output transformers, number of power tubes, speakers, ect, but was a little unclear about the amps using the same circuits. oosu 220k 22M. Replaced failed Accutronics tank with this MOD tank in my custom Fender Tweed Reverb amp, a NORMAL channel AB763 Deluxe Reverb. The AB763 Super Reverb is a very popular Fender amp due to the huge tone, robustness and the pure tone from the traditional blackface AB763 amp design. These were made for maybe 7-8 months as the AA964, 2×10 Vibrolux Reverb was in the works and released in October of 1964. There's a 2-channel AB763 Deluxe Reverb Bill of Materials on the Hoffman site, which is where I started. Like I said it's a 1967 Silverface, I had a hard time convincing some people of this but yes, Fender did make Silverfaces in mid 1967, I dated it through the serial number on a fender amp-dating website. And I am trying to find out how much the thing is worth. I got rid of all the CBS trash in there and with the blackfacing and cool mod along with a nice set of 66 jensen c10q's this is one of my favorite amps. He is a guitar DIY'er and tube amplifier designer who enjoys helping other musicians along in the endless pursuit of tone. No one wants to mod a $1200 vintage Blackface Reverb amp. Same size and style of Super Reverb® Please note: The mounting and rear hole pattern is not the same as the Fender® chassis. Cliff: "The 1987X MOD model is based on a 1987X Plexi Reissue with C5 removed (which is the most common mod done to this amp)" Crank the Master volume, use Drive for volume and gain, turn down Bass (or turn up Low Cut), turn up Mid and Treble. My ex-AB165 Bassman was once set up like this - the first two stages set up like AB763 and after that two additional gain stages and a master volume control. Two channels, vibrato and reverb. Not too difficult. ) The next one or two numbers are the month where January is 1 and December is 12. Buy 'Underskin' by Sam Loman as a Poster, Throw Pillow, Tote Bag, Art Print, Canvas Print, Framed Print, Photographic Print, Metal Print, Greeting Card, Spiral Notebook, or Hardcover Journal. My only other reference is a Princeton Reissue, all stock, that was just glorious. Well, it is, but it does sound different, it's more scooped. In fact, my old Fender mods I did in the late '60s were exactly the same as the schematics a lot of the later high-gain amplifiers used. About the Custom re-issue: Fender produced a Vibroverb Custom re-issue, in collaboration with Cesar Diaz, between 2003 and 2008. There are two gain stages. 550 Shipped directly from the good people at Marsh Amplification in late 2014 following a 6 week build time. Aug 23, 2019 - This Pin was discovered by Derek Irving. Please refer to pictures for cosmetics and prove of authenticity Normal 0 false false false EN-US X-NONE X-NONE. This is an early model Pre CBS "Blackface" model with the original Blackface AB763 circuit. Fender Ab763 Schematic Layout diagrams, schematics and BOM (Bill of materials) for the Hoffman AB763 boards are all listed on this page. Again not enough C10 [. The new Twin Reverbs kept the AB763 (blackface) circuit until May '68, when they changed over to the less desirable AB568 circuit. Valve Tube Guitar Amps. I found this site a few months ago: AB763 Mods by Robinette, Master Volume Mod I sent the author of the site an email asking for help, but I've yet to hear back from him. AC30 Top Boost 30 watt amp with quad push-pull EL84s with Top Boost Mods - minus Vibrato circuit Plexi Super Lead (1959) 100 watt amp with quad push-pull EL34s with master volume mod Twin Reverb (AB763) with quad push-pull 6L6GCs wi. Fender Bandmaster head, 1965. but can't remember why?. Find kits and modifications for your vintage fender!. I also have a few questions about some specific mods that I found for the preamp. SluckeyAmps. SCHEMATICS AND LAYOUT DIAGRAMS Here are hundreds of original Fender schematics and layout diagrams, available for free viewing and download. Hi Dave, Let's see if I can help. Not every element of the SF era was bad. My only other reference is a Princeton Reissue, all stock, that was just glorious. The Overlord Mod can be added to all of our two channel blackface models. Fender Gear In Stock & Free UK All AB763-similar circuits (Deluxe Reverb, Super Reverb, Pro Reverb, Twin Reverb, I used the proven circuit from the. Bandmaster AB763, AC568 (silverface) A26000 to A29000 – 1967 A28500 to A35000 – 1968 A33000 to A34000 – 1969. Started looking at the Silverface Deluxe Reverb. This mod is intended to use the VTAG #0016 type mod to improve the tone of a '70's Bassman which uses the same transformers as the '60's amps. It makes a HUGE improvement in tone and performance, giving a much richer sound that is much more musical, with much more clean sustain and a more. Pull it back slightly. But it's not a kit, and there are no instructions, just a layout and schematic, and you will probably need a couple hundred bucks worth of tools. When you buy products through links across our site, we may earn an affiliate commission. Fender Bandmaster head, 1965. The Blackface Fender Twin Reverb is a loud (and we mean LOUD) and proud vintage combo amp built for the largest venues and stages, with a remarkable amount of clean headroom and a dense, lush reverb. The tube callouts are identical for this model, though. 'AB763' was Fender's internal model designation for the 1963 blackface circuit. The Vibroverb is essentially the same as a Deluxe Reverb, with a few changes to the power supply to accommodate running 6L6's in the place of the Deluxe's 6V6's, which also requires larger transformers. There are also 2 silver plugs to fill the holes from the mod when the amp was de-modified and the original speakers were replaced with the existing Fender speakers as seen in pictures. Fender 63 Vibroverb Reissue Mods got a used Fender Vibroverb off of Ebay for a decent price as it was listed as a Vibroberb. There are hundreds of pages of Tube amp information on my library page. Just got all the electrolytic caps, & tubes replaced, in my "68" Fender Silverface Showman, one thing I noticed checking it: on the tremolo #2 channel the gain in lower, and the bass knob has to be up or there is no output (on the #1 channel, treble & bass can be on 1 setting and still get output)… is that normal? Reply. We believe that this is the most complete, highest resolutio. It has the AB763 sticker, vertical lines on the SF panel, etc. From what I've read Gilmour used mostly Hiwatt amps which have a lot of midrange. The only control i'd like to be able to adjust is the mids. > Those are the grid-stopper resistors, one of the few changes which were added to the AB circuit. For your Bandmaster Packet (Old), NO, YES. Well, it is, but it does sound different, it's more scooped. It is based on a classic American tube-circuit design combined with a British-style Class A output tube section. Like I said it's a 1967 Silverface, I had a hard time convincing some people of this but yes, Fender did make Silverfaces in mid 1967, I dated it through the serial number on a fender amp-dating website. My shop rate is $50/hr and I have a $100 minimum billing for chassis shipped in for repair. The "763" in the model name comes from the circuit change date of 7-1963. Billy asked me to start a new thread so as to not cluster up the Verb thread , I have an AO-29 amp section from an M3 Hammond that was left around , He was talking a bit about converting the AO-35 to a guitar amp so I remembered my old AO-29 and wanted to get some ideas on converting/modding the thing as another guitar head , it appears that the AO-29 has 2 input sections for multi channel ???. dumble Overdrive Specials 60's ODS Preamp 60's ODS Poweramp 60's ODS Output 70's ODS Preamp Mods For AB763 Fenders Dumble Mod #1 Dumble Mod #2. These are invaluable reference tools if you are digging around inside of your vintage Fender amplifier. Period correct RCA, GE and Sylvania preamp, Power and Rectifier tubes. dumble Overdrive Specials 60's ODS Preamp 60's ODS Poweramp 60's ODS Output 70's ODS Preamp Mods For AB763 Fenders Dumble Mod #1 Dumble Mod #2. Valve Tube Guitar Amps. This is the "Right" one. The AB763 design is also to be found in some silverface amps between 1967 and 1969. Seems to be the blackface circuit AB763 and dating puts it at 1969. After working on hundreds of customers' and my own blackface (or "blackfaced" silverface) Fender amps (Deluxe Reverb and larger) over many years, I've come to the conclusion that these two easy mods (out of many that I've read about and tried) are the best ways to tame that typical "glassiness" or thin sound that these amps can produce. I scratched up a mod that inserts the AB763 reverb into the 5f6a but I would like to know if anyone else has done it before I attempt it in my build. 00, Buy Now. I wanted plenty of clean headroom, so this really fit the bill. While the circuit design was drawn up in 1963 AA/AB763, the actual release date was March of 1964 as per the final three letter code on the schematic; C FD. Fender, Bandmaster are registered or. Hard to believ. It screams!Reading this info it says fixed bias,but my tech says no it's not,he might have added a bias adjustment during the mods?The serial # on my chassis is A 06124 and is the AB763 schematic. They do have a lot of potential for mods for sure. Valco Reverb. No one wants to mod a $1200 vintage Blackface Reverb amp. Some time in 1966 or 1967, Valco started using a Hammond reverb tank instead of the cardboard box tank they had been using since 1961. You could set up two different tone stacks on the two channels. He went and bought the machine from Heritage after it was abandoned in the Gibson factory in Kalamazoo, restored it, and owns a Leesona 102 as well, but without the mods that Duncan did to make it more consistent. The Super Reverb AB763 is, in my opinion, very different. 3x Piezas Vintage TRW. Early 1969 Drip Rail Super. Lew can probably talk you through that. This mod also puts the two channels in phase so you can jumper them for a thicker tone. I am having one built and I am going to have it re-voiced to have a little more gain at lower volumes and also have reverb in there as well. He had something similar with the Bandmaster but it had no reverb and a smaller OT. This weekend I'll pull the chassis to see what's going on. I had mine modified for gain and my tech put gain pots on both channels and added a middle to the first channel. If you want to do this yourself, you must be absolutely certain before you start that you already know how to do it safely. 75w lead amp with reverb. the year 1967. SluckeyAmps. PDF format. The AB763 Super Reverb is a very popular Fender amp due to the huge tone, robustness and the pure tone from the traditional blackface AB763 amp design. 00, Buy Now. MODS and ODDS. Better 12AT7s (notably, the Mullard CV4024,. Deluxe Verb: based on '65 blackface Fender Deluxe Reverb, AB763 circuit The Fender Deluxe Reverb, aka DR, isn't the Deluxe with reverb added. AB763 Concert-II 1983 Deluxe Model 26 (Woodie Deluxe) 5A3 5B3 5C3 5D3 5E3 5E3-A Layout Only 6G3 6G3-A AA763 AB763 Deluxe Reverb AA763 AB763 AB868 A1172 A1270 CBS 77-79 Vol/Boost Deluxe Reverb II: Harvard 5F10 6G10 K & F (Kauffman & Fender) 1x8 Combo 1x10 Combo Musicmaster Bass CFA-7010 PA Heads PA100 PA100 w/ rev sw PA135 PA Horn Crossover. 'AB763' was Fender's internal model designation for the 1963 blackface circuit. The Vibrolux circuit was slightly different and had 6l6's and 2x10 speaker configuration. Cheers, Marshal. The Vibroverb is essentially the same as a Deluxe Reverb, with a few changes to the power supply to accommodate running 6L6's in the place of the Deluxe's 6V6's, which also requires larger transformers. When you buy products through links across our site, we may earn an affiliate commission. Version 2 and the search for 5e3 tone. This guidebook shows owners and dreamers the basics of getting the best sound possible out of their Fender amp with simple and advanced modifications. June of 1965, AB763 circuit per tube chart, original Oxford 12″ (March of ’65), fairly clean really but has a repro back panel and replaced mains cable (you’re welcome). SF amps used a. A real workhorse for live or recording and not 2-3K! Bruce has been a personal friend of mine all the way back to the 70's and hails from the detroit area here. My shop rate is $50/hr and I have a $100 minimum billing for chassis shipped in for repair. If you utilize the Rock/Jazz switch and use the BM stack in most ab763 fenders it sounds great. Better 12AT7s (notably, the Mullard CV4024,. > The 6L6GC's in the AB763 each have a 1500 ohm resistor tied to their > grids, the AA doesn't. Glassy cleans , and warm tone. I am building a 1 channel AB763 with no tremolo, and I am contemplating the addition of a dumble overdrive stage. The MOD tank sounds like a vintage Accutronics made in Geneva, IL lots of depth, warm tone with medium decay. Pull it back slightly. The BLACKVIBE 6V6 is the 6V6 version of a single channel, no reverb, no tremolo AB763 blackface Vibroverb guitar tube amplifier. The Overlord Mod can be added to all of our two channel blackface models. A note on AB763 and silverface amps: If your tube chart says AB763 but you have a silverface amp, don't automatically assume it's the blackface circuit. Vintage 1965 Fender Showman Blackface All Tube Amp Head! AB763 Circuit! NICE. The effect of this mod is similar to pulling the V1 normal channel preamp tube when playing the vibrato channel. Depends on what year/circuit yours is. Not every element of the SF era was bad. Fender What you need to do this is a spring reverb tank, which isn't hard to come. This is a vintage Fender Super Reverb AB763 black face from 1965. Kendrick Amp Schematics I think some of his marketing techniques and some other things seemed to turn off some people. Other people can download the diy file and modify it for their AB763 build including custom mods. Marshall Plexi tube guitar amp preamp signal path by RobRobinette. That said, it has definitely been modified over the years, possibly even to the extent that it's now so far away from AB763 as to bear little resemblance to it. Mid and presence controls would be easy if you could find a place to install the pots. I also installed a MOD reverb tank in a '71 "blackfaced" Twin Reverb. Diagram: AKG140S Headphone. it is bone stock. Bandmaster AB763, AC568 (silverface) A26000 to A29000 – 1967 A28500 to A35000 – 1968 A33000 to A34000 – 1969. Same size and style of Super Reverb® Please note: The mounting and rear hole pattern is not the same as the Fender® chassis. In a guitar amplifier, a choke is used to smooth out the ripples from the power supply’s rectified DC power output. Learn more about Fender electric basses. This mod also puts the two channels in phase so you can jumper them for a thicker tone. It is the AB763 circuit Tagged: AB763, Bandmaster, blackface, Fender, layout, schematic, tube amp. Find out what it is and why your amp will almost ALWAYS sound better converted to blackface specs if you have a silverface. This set includes Sprague Atom Capacitors and Replacement PS dropping resistors. Vintage Fender Amp Repair specializes in do-it-yourself repair, modifications & upgrades, as well as vintage Fender amp schematics and layout diagrams. Since I was going to be pretty deep into it already, I decided to remove the master volume, replace it with a reverb dwell, and change the rest back to blackface specs, the AB763 circuit. Best guitar amplifier power transformers, output transformers and chokes. MojoTone provides kits for those wishing to build their own Fender-style Twin Reverb amp. The new Twin Reverbs kept the AB763 (blackface) circuit until May '68, when they changed over to the less desirable AB568 circuit. Projects, Mods, Transformer diagrams, Photo's, Sound clips. The BLACKVIBE 6V6 is the 6V6 version of a single channel, no reverb, no tremolo AB763 blackface Vibroverb guitar tube amplifier. The Launch Pad is a Clean boost of the highest quality, also can be used as an excellent DI, buffer and switcher. ab763 schematic, layout. What sets it apart from Fender's other Deluxe Reverb reissues is its modified all-tube hand-wired AB763 circuit that's neatly arranged, with braided reverb cabling. There are hundreds of pages of Tube amp information on my library page. The Fender Deluxe Amp has been around since 1948, that's longer than most of you reading this. This is a page that discusses the difference between the short lived AA763 and the longer lived and most revered AB763 circuits. Class AB All Tube Amplifier Output: ~22 Watts Circuit: AB763 Fixed Bias with an adjustable bias potentiometer The Deluxe Reverb is a 22-watt tube amplifier (at 8 ohms), powered by a pair of 6V6GT power tubes, one GZ34/5AR4 rectifier tube, four 12AX7 tubes for preamplification and tremolo oscillation, and two 12AT7 tubes driving the reverb and. This is an early model Pre CBS "Blackface" model with the original Blackface AB763 circuit. The only different thing could be this one. Consider this list of my favorite AB763 mods: robrob Normal Channel Reverb Mod to add reverb to the normal channel. The circuit and everything is just like the old blackface F___ Deluxe-Reverb AB763 of the 60s, with the exception of an added bright switch and a Cesar Diaz mod switch to cut the tremolo tube out of the circuit for an added gain. Just curious What is your favorite mod to do to that unused Normal channel on a Fender amp. This amp was previously owned by Kathy Valentine of The Go-Go's and The Bluebonnets!Original Alnico blue speakers! (CTS I. Bandmaster AA763, AB763 (blackface) A00590 to A01700 – 1963 A01700 to A07700 – 1964 A07700 to A17000 – 1965 A16000 to A22000 – 1966 A19700 to A27000 – 1967. modシリーズはマーシャルなどのリプレースメント用なのだが、 これをバリバリのアメリカン回路(ab763)に繋げようという試みである。 あまりいい音でなければ、Jensenの別のモノにするか、Weberである。. The code is simple, the first two letters are the revision (AA is the first revision, AB is the second, etc. A simple AB763 mod to amps with three preamp gain stages can send both channels through the third preamp stage to allow jumpering. He notes an easy thing to do with a SF Bandmaster is conversion to a BF Vibroverb head. Depends on what year/circuit yours is. A little "mushy" but loud and clear. The Vintage Sound Vintage 40MVP is an amp we've been wanting to offer for many years, a modified 1x12 combo using the beloved 40 watt AB763 circuit! Back in the mid 60's it was available only as a 1x15 (Vibroverb), a 2x12 (Pro Reverb), and a 4x10 (Super Reverb). This mod comes complete with preamp boost, bright, rock/jazz stitches and ratio and level pots (rear mounted). *FREE* shipping on qualifying offers. AA1070 = First revision, October, 1970. 00, Buy Now. Consider this list of my favorite AB763 mods: robrob Normal Channel Reverb Mod to add reverb to the normal channel. Note the two wire bundles that are wrapped with a reddish ground wire. Like the AB763 circuit. I bought a Fender Twin Reverb amplifier in the late 70's. This is a vintage Fender Super Reverb AB763 black face from 1965. Tweed Deluxe Reverb (TDR), single channel AB763 Deluxe Reverb in a 5E3 tweed cabinet. We add a tube socket and replace the normal channel with our D-style overdrive circuit. The AB763 design is also to be found in some silverface amps between 1967 and 1969. Fender amps made prior to 1963 carried this type of Bias-based Tremolo circuit - but it was labelled "Vibrato" on Fender amplifiers. My only other reference is a Princeton Reissue, all stock, that was just glorious. As a guitar player, sound engineer, and general gear connoisseur, I thought I’d begin sharing information gathered over the years, along with demos, photos, videos, and anything else that might be interesting. If you think this amp is too bright sounding try this mod. AB: based on AB763 circuit. These mods are located in the highest voltages in the amplifier. There is no coloration from EQ or distortion. Everything worked, except for a fairly bad hum on the output. However, we often hear the following from many of them: 1) Why 2 channel. We have a huge schematics inventory, projects section and forum. When CBS purchased Fender in 1965, the Twin Reverb design that had been used since 1963 did not change at first. Formed in 1994 with former TESLA equipment, Jan Jorgo started JJ manufacturing with just three tube types - EL84, EL34 and ECC83. Again not enough C10 [. CS: based on the '64 Vibroverb Custom, which was produced between 2003-2008, with the Mod switch on. Depends on what year/circuit yours is. It was used in the Deluxe Reverb, Twin Reverb, Super Reverb, Concert, Band-Master, Showman, Pro, Vibrolux, Vibroverb, Tremolux and no-reverb Deluxe. Original Eminence Blue Label Fender speakers. These pictures tell. Showman Blackface Ab763 Showman_aa763 Showman_ab763_schem Single_showman_ab568 Studio-85 Super Champ Mods Super Champ Super-sonic_100_2011_schematic_rev-b Super-sonic_combo_schematic Super_5b4_layout Super_5e4_g-ee Super_60_rack Super_amp Super_reverb_aa1069_schem Super_reverb_aa270_schem Super_reverb_aa763_schem Super_reverb_ab568_schem. "Blackfacing" an amp is a little overrated. 1967 Fender Deluxe Reverb: Mods, Speakers, and More! By every imaginable yard-stick, the Fender "Deluxe" is one of the most popular musical instrument amplifiers of all time. RobRobinette Guitar Tube Amps. Much as the Hot-Rod enthusiast is forever tinkering with his 'wheels' to be 'just a little different', so are guitar players forever tinkering with their guitars and amplifiers in an effort to be 'just a little different'. I usually opt for something like. Tremolo disconnect mod - More preamp gain in vibrato channel. I just got a '70s silverface Fender Twin Reverb that needs a little TLC. The following are mods that I do understand and assumidly they might be related/necessary for the mods above but probably not. There are also 2 silver plugs to fill the holes from the mod when the amp was de-modified and the original speakers were replaced with the existing Fender speakers as seen in pictures. The Showman 12 was discontinued in 1966. When CBS purchased Fender in 1965, the Twin Reverb design that had been used since 1963 did not change at first. 0022 in my own starter designs and I found a. A note on AB763 and silverface amps: If your tube chart says AB763 but you have a silverface amp, don't automatically assume it's the blackface circuit. dumble Overdrive Specials 60's ODS Preamp 60's ODS Poweramp 60's ODS Output 70's ODS Preamp Mods For AB763 Fenders Dumble Mod #1 Dumble Mod #2. A reissue of a '60s classic, this all-tube amp pushes 45 watts through 4x10" Jensen Alnico speakers with sweet tube-driven spring reverb and vibrato effects. The "gain" switch unloads the power to the tremolo tube giving the other preamp tubes added gain, similar to one of the mods by Cesar Diaz for SRV's Vibroverb as well as done by "Lord Valve" for. The AB763 design is also to be found in some silverface amps between 1967 and 1969. The best source for Vintage Amplifier and Guitar parts. The AB763 Super Reverb is a very popular Fender amp due to the huge tone, robustness and the pure tone from the traditional blackface AB763 amp design. MOD Reverb Tank - 8EB2C1B. AB165 Bassman. They were both. Like I said it's a 1967 Silverface, I had a hard time convincing some people of this but yes, Fender did make Silverfaces in mid 1967, I dated it through the serial number on a fender amp-dating website. June of 1965, AB763 circuit per tube chart, original Oxford 12″ (March of ’65), fairly clean really but has a repro back panel and replaced mains cable (you’re welcome). The tube callouts are identical for this model, though. The owner had sent it to me with a note requesting the usual mods, plus a rather plaintive “… and maybe you can find out why it hums while you’re in there. I like putting the reverb on both channels and then modifying the Normal channel and using an A/B/Y switch to use either channel. A note on AB763 and silverface amps: If your tube chart says AB763 but you have a silverface amp, don't automatically assume it's the blackface circuit. Diagram: AKG140S Headphone. I am having one built and I am going to have it re-voiced to have a little more gain at lower volumes and also have reverb in there as well. I'm not really in favour of fixing something that isn't broken so the circuit and layout is a standard AB763 pulled from the Hoffman amps web site, get it working with the Fender circuit and then possibly make mods if needed. Slow the Tremolo Slow is good. The effect of this mod is similar to pulling the V1 normal channel preamp tube when playing the vibrato channel. The Fender Deluxe Amp has been around since 1948, that’s longer than most of you reading this. Fender Super Reverb Schematics Read/Download This is a Silverface version of the Super Reverb that appears to have only been made a couple. The amp pages are gone but the document PDFs are still available. Google "AB763 Dumble mod" for some info on some of his work on Fenders. The code is simple, the first two letters are the revision (AA is the first revision, AB is the second, etc. Fender Deluxe Reverb Reissue Modifications April 8, 2001 Posted by swingin. ] The brightness is gone the EQ way. SF amps used a. The Luxe Reverb, while based on the infamous AB763, is far from it. I totally get that. Notes: The VTAG #0016 mod worked very well to improve the tone of a 60’s Bassman. The signal path receives my favorite Deluxe amp tweaks - with 12ax7's throughout the circuit can give you a Nugent/Stranglehold high-gain response. This mod adds a third triode gain stage before the phase inverter as seen on the. Ab763 Mods Ampeg Svt Wiring Diagram Fender Deluxe Reverb Wiring Diagram; How The Ab763 Works Fender Vibro King Wiring Diagram Fender Deluxe Reverb Wiring Diagram; Bf Sf Deluxe Reverb Fenderguru Com Fender Deluxe Reverb Silverface Fender Deluxe Reverb Wiring Diagram; How The Ab763 Works Fender Super Sonic Wiring Diagram Fender Deluxe Reverb Wiring Diagram. The Overlord Mod can be added to all of our two channel blackface models. When you buy products through links across our site, we may earn an affiliate commission. Mojotone Quick Order Form! Please, follow these basic instructions to place your order: Add only the numerical characters of the Item Number. This guidebook shows owners and dreamers the basics of getting the best sound possible out of their Fender amp with simple and advanced modifications. What kind of preamp tubes are being used. We add a tube socket and replace the normal channel with our D-style overdrive circuit. AC30 Top Boost 30 watt amp with quad push-pull EL84s with Top Boost Mods - minus Vibrato circuit Plexi Super Lead (1959) 100 watt amp with quad push-pull EL34s with master volume mod Twin Reverb (AB763) with quad push-pull 6L6GCs wi. I haven't gone through it thoroughly, but this site seems like one of the better ones for info on AB763 mods. 50 in 1965 and that's $1880 in today's (July 2017) dollars. Showcasing anointed gear pro in stock and ready for shipping here online. new models as of january 2018. There are also 2 silver plugs to fill the holes from the mod when the amp was de-modified and the original speakers were replaced with the existing Fender speakers as seen in pictures. MOD Reverb Tank - 8EB2C1B. Cheers, Marshal. I've heard that this was common on blackface amps, but the Deluxe schematics (both AB763 and AB868) appear to show the two main filters wired in parallel. There are a lot of power amp attenuators sold today that take a more elegant approach and have circuitry that EQ's the signal and adds some cabinet simulation. I've wanted a silverface Twin or Pro Reverb since I was a. 1967 FENDER SUPER Reverb 4x10 Combo Amp! - EUR 1. Thanks in closer to the 6G3 Deluxe, 6G2 Princeton and AB763 Princeton amps. Having an AB763-similar circuit, there are many mechanisms in the circuitry that you can tweak to You'll need schematics to implement some of these mods. AB763 Blackface Circuit! Made In USA! This is a 1967 Fender Bandmaster Silverface Amp. Jorge As you know, it's possible to both increase the headroom and change the tone response of the AB763 fender board. June of 1965, AB763 circuit per tube chart, original Oxford 12″ (March of ’65), fairly clean really but has a repro back panel and replaced mains cable (you’re welcome). In fact, my old Fender mods I did in the late '60s were exactly the same as the schematics a lot of the later high-gain amplifiers used. This is the same phase inverter, bias and output circuit found in the AA864 Bassman, AB763 Super Reverb, Twin Reverb, Deluxe Reverb, etc. Fender, 7, Fender, AB763 Reverb 1 Channel, AB763 91, Fender, Harvard, 5F10 There is a large collection of amp schematics and layout diagrams in my. Showman_ab763_schem Single_showman_ab568 Studio-85 Super Champ Mods Super Champ Super-sonic_100_2011_schematic_rev-b Super-sonic_combo_schematic Super_5b4_layout. What kind of preamp tubes are being used. As a guitar player, sound engineer, and general gear connoisseur, I thought I’d begin sharing information gathered over the years, along with demos, photos, videos, and anything else that might be interesting. Features: 16 Gauge Galvanneal Steel - 0. 00, Buy Now. There's a 2-channel AB763 Deluxe Reverb Bill of Materials on the Hoffman site, which is where I started. The Fender Deluxe Amp has been around since 1948, that's longer than most of you reading this. You can buy all the parts there for a deluxe reverb build for about $750, with no cabinet. "We have designed countless Mods since 1998. ) Easy to do and gives you a nice balance feature to allow use of mismatched power tubes.