It is disclosed solely for use by qualified technicians for purposes of equipment maintenance and service. The fender blackface twin reverb 65 is the most highly regarded guitar amplifier in the twin reverb line. Period correct appointments and modern reliability complement the classic 85w 2x12 design. If you dont run that amp at higher volume settings. For the 5e3 i recommend tapping the circuit between the normal channel volume pot pin 3 output and v2a pin 2 grid. Despite its clunky size which has earned it its nickname, the brick, its easy to design around, is low noise. Im a newb at amp repair but ive been learning a lot and here i tackle replacing the electrolytic caps in my silverface bassman. Wattage on these models is printed near the speaker out jack. Twin 5c8 5d8 5d8a 5e8 5e8a 5f8 5f8a 6g8 6g8a twin reverb aa763 ab763 aa769 aa270 ac568 100w 100w master vol. Fender twin reverb amplifiers use four output tubes, of the. Twin reverb amp aa270 layout twin reverb amp aa769 twin reverb amp ac568 vibrolux 5f11. The onboard reverb is so good that some pedals try to clone its sound. I mean the 68 custom amps, why should fender give out the slick channel voicing design.
The strange thing is that after retubing the amp and changing the screen resistors as a matter of course the amp was fine and singing very nicely. The twin reverb has been used on thousands of recordings and countless live performances since 1954 when the first version the twin amp appeared on the music scene. Two 12 celestion speakers provide enough projection to use all 85 watts of headroom effectively. The twin now had an onboard spring reverb tank and was renamed the twin reverb. Fender 68 custom twin reverbamp 2channel 85watt reverb. Fender style choke, 90ma dc, 4 hy, 125c1a, 022699, 036468. Fender twin reverb ac568 schematic fender twin reverb ii schematic fender twin reverb sf 100 schematic. I am trying to locate a schematic for a fender solid state. Fender 65 twin reverb reissue tube kit dougs tubes. Discussion in amps and cabs started by jblue, apr 5, 2017. Ive kinda lusted after a low power tweed twin myself. Fender bandmaster ac568 schematic fender bandmaster ad1269. The twin was one of the first amps that cbs improved after buying fender. Jun 11, 2012 for your free pdf copy, please email email protected or callnnn nnnnnnn if ordering for an older discontinued amp, please include photos or as much descriptive information on the product as you can.
The vertical black lines on the panels are a nod to the class of 68. For me being a clean amp kinda guy, the super reverb fits the bill. See the aa1164 schematic above to see how it was done in the princeton reverb. The vintage channel still maintains all the characteristics that silverface. Every effort has been made to keep the preamp and power amp circuits exactly like the original. Korg has kindly gathered together the schmatics of a whole pile of schematics from about 1960 onwards. Super reverb vs twin reverb discussion in amp central station started by bjjrev, jan 28, 2012. Super twin reverb 1977 super twin reverb 1978 tonemaster. I like using my amp as a platform or just to put the sound out, and letting my pedals do the heavy lifting of providing gain, tone, flavor, etc. Bandmaster reverb 70 watts, dual showman 5 watts, pro reverb 70 watts, quad reverb 5 watts, super reverb 70 watts, super six reverb 5 watts, twin reverb 5 watts, or vibrosonic reverb 5 watts. Symptom is that for a twin, its not very loud, and starts to breakup pretty early. The ac568 amps werent likely produced until july or august 68 at the earliest making it probable that yours is the ab763 circuitry.
Some of the major differences between the twin reverb and deluxe reverb are highlighted. This disk is our creation, and we participate in ebays vero program. Nov 10, 2011 fender twin reverb 5w silverface schematic. Service manuals, schematics, eproms for electrical technicians. Fender guitar and bass amplifier owners manuals and. Think the national, portugal the man, or sonic youth. Twins diagram notes layout gemini page layout twin. The 68 custom twin reverb amp pays tribute to the classic look, sound and performance of fenders late 60s silver face amps. The blackface 212 reverb amp kit marsh amplification. Item is one parts list and schematic for the fender reissue65 twin reverb guitar amplifier. The fender super twin reverb is a guitar amplifier made in the late 1970s that is a follower of the classic fender twin reverb amps. Normal channel inputsplugin connection for instruments.
The combination of these two classic highpowered speakers and 4 electro harmonix 6l6 power tubes gives the mojotone twin reverb style amp a mountain of clean headroom, allowing users to run their favorite pedals. Fender twin reverb 85watt vintage silverface guitar combo. The loudest of the companys original line of amps 85w from 68 to 72 and 100w onward, this model was designed from the ground up with hefty 6l6 tubes to. Here is our collection of black face, silver face, and other 80s era fender guitar amp schematics. The combination of these two classic highpowered speakers and 4 jj electronic 6l6 power tubes gives the mojotone twin reverb style amp a mountain of clean headroom, allowing users to run their favorite pedals through. They are available for free download to help you with your amplifier repair and modifications.
Fender forums view topic twin reverb 1968 ab763 or not. The length of time required for the arrival of the very first reflections is called the delay time usually on the order of tens of milliseconds, e. Oh wait, theres a version of ac568 that has 2 tubes. May 12, 2019 the schematic i gave in my post two covers your amp. There are some differences in component values between the ab763 twin reverb and the ac568 twin reverb. It has two triode light dependant resistor ldr signal tremolo but no reverb, 7025 low noise version of the 12ax7 preamp, dual identical tone stacks with treble and bass controls for each channel no. Up until 2010, fender twin reverb reissues used accutronics reverb tanks made in cary, illinois. By eric barbour former vacuum tube valley senior editor. Twin reverb ii schematic twin reverb aa270 schematic twin reverb aa769 schematic twin reverb ab763 schematic twin reverb ac568 schematic hard to read twin reverb sf100 schematic twin reverb sf5 schematic u. After downloading, the file may take a moment to open in the browser. The amp will play louder at the same volume knob setting when pulling the v1v2 tube that youre not using. The new 68 custom series sees fender head back to its early silverface amps and add a few modern twists to the twin reverb, deluxe reverb and princeton reverb. Fender hotrod deville service manual download, schematics.
Compare the values of the phase invertor plate resistors and the grid resistors to the 6l6 tubes. Super six reverb 1974 super twin 1975 super twin 1976 super twin with distortion volume boost. Fender twin reverb silverface 5w it11 audio tonegeek. These are invaluable reference tools if you are digging around inside of your vintage fender amplifier.
In november, 2009, the accutronics company was purchased by belton, and the manufacturing facility in cary was closed. Twin reverb ab763, ac568, aa769, aa270 silverface a10500 to. Fender twin reverb 11 instruction manual pdf download. Fender audio repair service owner manuals and schematics on 1. Save for the following, all voltages seem pretty good, although i am using an ac568 layout for comparison. Two transition prototype 1963 twin reverb amps have been found in both brown and blonde tolex covering. Imagine you are inside a large hall and you clap your hands once.
Replacing electrolytic capacitors on a fender bassman. For countless guitarists ever since, the twin reverb has been the go to amp for classic fender sound. The circuit used is commonly known as the ab763 circuit. The twin reverb output transformer is designed to work most efficiently with the following impedancesloads and tube power configurations. The 94 twin amp is a direct descendent of classic tube amps like the twin reverb and the 410 bassman. The mojotone twin reverb style amp is 85 watts of alltubedriven class ab glory, featuring 2 jensen c12n 50 watt speakers. Fender 65 twin reverb instruction manual pdf download.
Anyway, i do this kind of mod often in hand made home made amps. Prowess amplifiers fender schematics twin reverb sf 5. The schematic of the top boost mod for the ac30 is also there. Twin reverb ii schematic and parts list pdf file please let me have your amps serial number twin reverb ii manual please dont ask me for the twin reverb ii wiring diagram layout. Fender output transformer, showman, dual showman, twin. Need help about silverface twin circuit fast gearslutz. Loud enough to peel the paint off the walls and with a. Fender phase inverters in later amps used a very crude circuit which also provided some voltage gain. Thanks to kevin chant for the high quality original fender amp schematics he has available on his site.
The fender 68 custom twin reverb takes everything players loved about the transitional dripedge silverface amps and adds a custom channel with a bassmanesque tone stack. Fender vintage 1977 tube 180 watt super twin reverb 2 x. Our indie rock amp tube kit is designed for someone looking for sharp, colorful out leads or tight, bright rhythm guitar. We believe that this is the most complete, highest resolutio. Fender 65 twin reverb neo 2x12 85watt tube combo amp wine red sweetwater exclusive. I have a twin reverb in for repair right now with exactly the same symtoms as yours. View and download fender twin reverb 11 instruction manual online. Ac568, tfc5005 1968 1980 silverface bandmaster reverb circuits aa768, aa568, aa1069, or tfl5005. The belton btdr reverb modules have quickly become regarded by diyers and boutique pedal builders as one of the best digital spring reverb modules ever. Im surprised they have many schematics for download as it is. Crystalline, versatile, and packed to the gills with punch, the vintage fender twin reverb silverface combo is an affordable, occasionally overlooked gem in the companys vintage roster. If its good enough for keith richards and eric clapton. Ul ot, high voltages, bright cap on mv pot make this amp definitely too bright for me. Dc circuit circuit diagram diy electronics electronics projects tesla logo valve amplifier electronic schematics guitar pickups electronic engineering.
The non reverb deluxe is the simplest amp of the family because it has only two preamp gain stages and no reverb. But may have handling wear or other damage that comes from use. Twin reverb 11 musical instrument amplifier pdf manual download. Fender diagrams, schematics and service manuals download for free. Super reverb 65 reissue schmlo pdf tremolux 5e9a tremolux 5g9 tremolux 6g9 tremolux 6g9a tremolux 6g9b tremolux 6g9b layout tremolux amp ab763 tremolux amp ab763 layout twin amp 5c8 twin amp 5c8 layout twin amp 5d8 twin amp 5e8a twin amp 5f8a twin amp 5f8a layout twin amp 6g8 twin amp 6g8 layout twin reverb amp aa270. Channel one is the traditional fender design which offers the vintage sound as well as contemporary sounds with the use of switchselectable gain and master volume controls.
The twin reverb is known for its characteristically clean tone at very high volumes. As i mentioned in a post a few months ago, i came into a really cool 1968 twin reverb that has silverface cosmetics e. The fender twin reverb is considered a standard model for players seeking a clean sound, and it is especially known for the quality of its builtin spring reverb. The ac568 circuit was designed in may68 568, but there is a lag time from design to implementation as old stock component inventory is exhausted and new stock components arrive. Be it rock, blues, country, jazz or anything else, this is what clean electric guitar sounds like. The blackface 212 reverb amp kit this kit comes complete with everything you need to build the classic 212 reverb amp ab763 vintage 1965. King size power and versatile tone shaping options define this absolutely killer 1977 fender super twin reverb with 180 watts of gut wrenching power on tap. Schematics and layout diagrams here are hundreds of original fender schematics and layout diagrams, available for free viewing and download. Spring reverb tanks explained and compared antique. All ab763similar circuits deluxe reverb, super reverb, pro reverb, twin reverb, vibroverb, vibrolux are designed so that signal is leaking between the two channels. Aug 18, 2015 rightclick to save the file or leftclick to open from your browser. Fender forums view topic twin reverb power transformer.
Note that all of the signal flows through the reverb tank so this circuits output is 100% wet. Ive done a lot of reading and trawling forums to try and understand but honestly, i. If ordering for an older discontinued amp, please include photos or as much descriptive information on the product as you can. Silverface fender twin reverb low volume before distortion. The information contained herein is confidential and proprietary to fender musical instruments corp. Well, from what i see from the schematics on the web, the ab763 schematic has 2 6l6s, and the ac568 has 4. Being that this version is super, it has a number of features and controls not found on regular twin reverb amps, although i dont prefer this to the originals.
Fender twin reverb ac568 schematic fender twin reverb ii schematic fender twin reverb sf 100 schematic fender twin reverb sf 100 mastervolume schematic. Hello all, this is my first post here and im hoping that your expertise here can help me understand whether or not my 1968 twin reverb carries the blackface ab763 circuit or the later ac568 circuit. Your new 65 twin reverb is a faithful reproduction of an original 1965 twin reverb model ab 763 for historical or technical types. All high quality components throughout including carbon comp resistors, cloth wire, heyboer us made transformers, galvanized steel chassis, tad and sprague atom electrolytic caps, sbe orange drop coupling caps etc. All the vox ac xx models are there and also the solid state amps. Also a big fan of the twin reverb but i love the super reverb most. Ab763 blackface amp model differences rob robinette. Dynaco audio repair schematics and owner manuals on 1 dvd in pdf format. Im told by a tech in the us that its missing from the authorised fender techs service folder, and even fenders customer service guys dont have one jan 2016. Up until a certain year, fender made these amps with a black face and without a master volume knob, and this distinguishes the amp from the later silver face models of the amp. We created several and we have redrawn some schematics that were already available on the internet for readability or ease of use these needed an easiertoread format, corrections or part identifiers. Used in the fender ultralinear models from 19741980 as follows.
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