Interestingly, other than outer coverings, knobs, and speakers, the amps remain remarkably similar through the years. Jul 12, 2017 ive got my 49 transitional ga 25 ga 30 and my 48 br9 love them both. Old style snapin ac power inlet for gibson goldtonetrace. An awful lot of electronics and software is still handled this way. Skip to main content skip to footer site51514162 vintage 1514162 gibson 1966 ga95rvt apollo tube guitar combo amp. Gibson high quality service manuals user owner instruction. Introduced in 1961, this amp brought onboard reverb to gibsons amp line. Gibson diagrams, schematics and service manuals download for free. Jul 12, 2017 back in 77 i had a 66 gibson ga 55rvt ranger while i was in a particular band. If you want to join us and get repairing help please sign in or. In the 1940s and 1950s, gibsons continuing advances in. I first got the chance to work on one of these for an austin guitar teacher and all around cool guy, andy bullington. We have the gibson 1966 ga 95rvt apollo tube guitar combo amp in stock in our vintage collection.
I expected the circuit to be that of a lancer, but. While the gibson amps with tremolo typically carried a t at the end of the model, the ga79 did not. User item 1962 stereoreverbtremolo includes schematic. Designed with independent preamps in a dual 10 speaker design, the ga 79 is capable of up to 30 watts of power and comes packing oddbird components like jensen p10q speakers and.
Ga 79 ga 79rvt multipurpose ga 80 varitone ga 83s stereovib preamp ga 83s stereovib poweramp ga 85 ga 86 ga 88s stereo twin ga 90 ga 100 bass ga 200 rhythm king ga 300rvt super 300 ga 400 super 400. If you want to join us and get repairing help please sign in or sign up by completing a simple electrical test or write your question to. One of the more uncommon gems in the companys early guitar combo lineup, the gibson ga79 rv amp is as distinctive in looks at is in sound. Gibson electric guitars serial numbers manual gibson amplifier master service manual gibson guitars reference manual guitars design, production and repair 161 pages epiphone guitars owner manual ace frehley 3 pick up wirring schematics all american 1 wirring schematics arct arca wirring schematics atlas iv schematic atlas medalist schematics. Gibson ga79rvt service manual download, schematics, eeprom. Gibson tremolo oscillator circuit, uncommon output tubes. It only takes the pot plus a few extra resistors to add the tremolo to the circuit. One of the first stereo amps gibson produced in the 60s, the ga79 sports a dual 10 speaker design with 30 watts of power packed in a threepanel package that adds vintage flavor in any rig. Jan 10, 2016 in this video well take a look at the guts of a later model vintage gibson ga 20rvt amp and talk about what made some gibsons sound thin and uninspiring in the late 1960s and how to fix that. The ga79rvt is a true stereo amplifier having two completely independent channels with re.
When the electric guitar emerged in the 1930s as an instrument with its own voice, gibson amplifiers powered that voice. Ga 19rvt musical instrument amplifier pdf manual download. Ea epiphone series ea4t4tl6t emperor ea5rvt emperor ea7p professional ea8p professional ea10 deluxe ea12rvt futura ea15rvt zephyr ea. Gibson ga15rvt schematic service manual download, schematics. Gibson tube amp schematics, hoffman amps tube amp schematic library gibson schematics. I examined the schematic and there was a difference in the chip in the input channel. Back in 77 i had a 66 gibson ga55rvt ranger while i was in a particular band. The amp is just 15 watts, but its all tube power and has two 6v6 power tubes to go along with 5 12ax7 tubes. Gibson ga5 les paul junior amplifier as the new owner of the les paul junior amplifier, you have joined a great gibson legacy. One of the more uncommon gems in the companys early guitar combo lineup, the gibson ga 79 rv amp is as distinctive in looks at is in sound. Your purchases help youth music programs get the gear they need to make music.
Most gibson amps from made from 1955 to 1965 can really deliver a great tone comparable to many classic fender models, but usually require some important. The schematic calls for a 7199 reverb driverrecovery tube. They have the minimum controls necessary to produce a good range of sounds, from clean to overdriven. Three of the input jacks have a 47k tied to them as a group and one jack with a 33k. In the 1940s and 1950s, gibsons continuing advances in amplifier design matched the companys celebrated guitar innovations.
The ga18t model took its place in 1961 thru 1963 and is nearly identical except that the ga18 has a 12 inch jensen alnico speaker while the ga18t has a 10 inch jensen alnico speaker. Three instrument inputs all voiced alike go into one channel and a higher gain microphone input is used to great effect by guitarists who want a more overdriven. Introduced in 1961, this amp brought onboard reverb to gibson s amp line. Service manuals, schematics, eproms for electrical technicians. View and download gibson ga 19rvt schematic diagram online. As the new owner of a gibson amplifier, you have joined a great gibson legacy.
The gibson ga 20 rvt is a reissue tube amplifier that aims to recreate a vintage vibe. We have a huge schematics inventory, projects section and forum. Gibson ga79rvt service manual download, schematics. People called it the kalamazoo super reverb but one shouldnt be fooled by the similar configuration of two channels, 6l6 power section, and 4x10 speakers. Gibson ga40 schematic versions and output transformer. Your purchases also help protect forests, including.
Ga79 ga79rvt multipurpose ga80 varitone ga83s stereovib preamp ga83s stereovib poweramp ga85 ga86 ga88s stereo twin ga90 ga100 bass ga200 rhythm king ga300rvt super 300 ga400 super 400. Prowess amplifiers offers resources for the guitar tube amplifier builder. Ga version 1 ga 1rt maestro revecho ga 1rvt ga 2rvt ga 3rv ga 4re ga 5 skylark. If youre looking at this ad, you probably know that the amp is wired in stereo, and.
British maker bird felt otherwise in creating the golden eagle 425. I have aquired a gibson g80 chassis and a schematic. Vintage gibson 1966 ga95rvt apollo tube guitar combo amp. The gibson ga20rvt delivers boutiquequality class a tone with tube reverb and tremolo. The ga30 had a pair of 6v6s, and perhaps obviously had an earlier breakup than the ga50, which had dual 6l6s for their output. There was a builder in florida who made an amp much like the design of the. One of the most unique offerings put up by the company in the 1960s, the gibson ga79 rvt amp offers a vanguard design and enveloping stereo sound in one package. The ga79rvt, with its bandstand cabinet, is generally acknowledged by players as one of the finest amps made by the gibson company. Unless you have and want a museum piece, it will need new increased power supply caps and resistors, fresh cathode bypass caps, and a new volume pot. In this video well take a look at the guts of a later model vintage gibson ga20rvt amp and talk about what made some gibsons sound thin and uninspiring in the late 1960s and how to fix that. One of the most unique offerings put up by the company in the 1960s, the gibson ga 79 rvt amp offers a vanguard design and enveloping stereo sound in one package. The ga 20 was the first gibson amp to feature a top mounted, rear facing control panel, making it more user friendly than a rear bottom mounted chassis featured in previous models. Ga 6 lancer ga 8 gibsonette ga 8t ga 9 ga 14 titan same as ga 6 ga 15 maestro ga 15rvt explorer ga 16t viscount ga 17rvt scout ga 18t explorer ga 19rvt falcon ga 20 ga 20t. The ga 18t model took its place in 1961 thru 1963 and is nearly identical except that the ga 18 has a 12 inch jensen alnico speaker while the ga 18t has a 10 inch jensen alnico speaker.
Ive been looking into building a ga40 reproduction from scratch, partly because vintage gibson amps are quite rare in my area holland and partly because even if i find a vintage one usually many parts have been, or should have been replaced by now. Hand built with pointtopoint wiring, metal film resistors, handwired turret board, and a pentodetriode switch to give you hot distortion at half wattage for powerful tone at low volume. Gibson schematic heaven, tube books, schematics galore. Gibson made a number of amps in 1961 that share the same reverb circuit. While other gibson amps were changing control panels, tubes, and cabinet construction, the ga79 remained basically unchanged. Gibson ga20rvt 15w class a guitar amp musicians friend. One of the first stereo amps gibson produced in the 60s, the ga 79 sports a dual 10 speaker design with 30 watts of power packed in a threepanel package that adds vintage flavor in any rig. They have the minimum controls necessary to produce a. The following comparison table is based primarily on the time i have spent poring over schematics and old, gibson marketing literature, the few gibsons i have been able to work on, and information gathered from people i know who have a lot of gibsons. The ga 79rvt, with its bandstand cabinet, is generally acknowledged by players as one of the finest amps made by the gibson company. The amp in question was produced before the lancer, yet had a tube complement like that of a lancer.
The br9 is a tad dark but has a really smooth mellow tone and the ga 30 can growl a bit if you crank the bass and volume but has a beautiful depth to the clean tone. If you want to join us and get repairing help please sign in or sign up by completing a simple electrical test. One brand i hear this sort of question about a lot is gibson. Jul 17, 2017 the ga30 had a pair of 6v6s, and perhaps obviously had an earlier breakup than the ga50, which had dual 6l6s for their output. Designed with independent preamps in a dual 10 speaker design, the ga79 is capable of up to 30 watts of power and comes packing oddbird components like jensen p10q speakers and. Ga19rvt musical instrument amplifier pdf manual download. I love this amp, but they are too fragile to move around. Gibson ga20rvt minuteman not long after this, gibson introduced the amp that used to be very affordable on the vintage market. May 11, 2012 for those who dont know, the gibson ga79rvt is pretty coola true stereo amp with two discrete output stages, each feeding a 10 speaker.
View and download gibson ga19rvt schematic diagram online. I had always thought of gibson amps as pretty dark sounding and fender as the bright ones. Each output stage uses one half of a shared 12au7 as the phase inverter, driving a pair of 6bq5el84 output tubes. I just recently acquired the gibson ga19rvt falcon amp and i will need. The br9 is a tad dark but has a really smooth mellow tone and the ga30 can growl a bit if you crank the bass and volume but has a beautiful depth to the clean tone. Introduced by gibson in 1950, the ga20 was a twochannel, 12. Gibson was known for changing their amps fairly often. This amplifier is also noted for its nice compact luggage styling with a brown leatherette covering over a solid. Gibson falcon ga19rvt question showing 122 of 22 messages. For those who dont know, the gibson ga79rvt is pretty coola true stereo amp with two discrete output stages, each feeding a 10 speaker. Its got a single 12 speaker and two channels to work with. Gibson ga20rvt minuteman not long after this, gibson introduced the amp that used to be very affordable. Normally folded and mailed in ordinary business envelope. I am having a hard time finding any parts as this was built in 1971.
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