I turned to the Internet to do some more networking which resulted in a major turn of events as I met two individuals who have become instrumental partners in this project: Greg Huntington and Devin Riebe.
Greg is a long time Fender collector who is very knowledgeable not only in the details, but in the circuitry as well.
GA-1RT(-1) Maestro Reverb-Echo (tweed) GA-1RVT Maestro Reverb-Echo (aka Maestro M-1RVT) (tweed) GA-2RT Maestro Deluxe Reverb-Echo (tweed) GA-2RVT Maestro Deluxe Reverb-Echo GA-3RV GA-4RE GA-5 Les Paul Junior GA-5 Skylark (two-tone) GA-5T Skylark (two-tone) GA-5 Skylark (Crestline) GA-5T Skylark (Crestline) GA-5 Skylark (White Panel) GA-5T Skylark (White Panel) GA-5 Skylark (1967-) GA-5T Skylark (1967-) GA-6 (two-tone) GA-6 Lancer (tweed) GA-7 Les Paul TV Gibsonette GA-8 Gibsonette GA-8T Gibsonette, GA-8T Discoverer GA-8 Discoverer (Crestline) GA-8T Discoverer (Crestline) GA-9 (two-tone) GA-14 Titan GA-15 Maestro (two-tone) GA-15RV Maestro (tweed) GA-15RVT Explorer (White Panel) GA-16T Viscount GA-17RVT Scout (Crestline) GA-18 Explorer (Tweed) GA-18T Explorer (Tweed) GA-18T Explorer (Crestline) GA-19RVT (Tweed) GA-19RVT Falcon (Crestline) GA-20 GA-20 (Two-Tone), Crest (Tweed) GA-20T (Two-Tone), Ranger (Tweed) GA-20RVT Minuteman (White Panel) GA-25 GA-25RVT Hawk (Crestline) GA-30 GA-30 (Two-Tone), Invader (Tweed) GA-30RV Invader (Tweed) GA-30RVT Invader (Crestline) GA-35RVT Lancer (White Panel) GA-40 Les Paul GA-40 Les-Paul (Two-Tone), GA-40T Les-Paul (Tweed) GA-40T Les Paul (Crestline) GA-45T Maestro (Two-Tone), Standard (Tweed) GA-45RV Maestro (Tweed) GA-45RVT Saturn (White Panel) GA-45RVTL Saturn (White Panel) GA-46T Super Maestro (Two-Tone) GA-50 GA-50T GA-55 (Two-Tone) GA-55 Ranger GA-55V (Two-Tone) GA-55RVT Ranger (White Panel) GA-55RVTL Ranger (White Panel) GA-60 Hercules (Crestline) GA-70 Country and Western (Two-Tone) GA-75/(75W) GA-75 Recording (Crestline) GA-75L Recording (Crestline) GA-77 (Two-Tone), Vanguard (Tweed) GA-77RV Vanguard (Tweed) GA-77RVT Vanguard (Crestline) GA-77RVTL Vanguard (Crestline) GA-77RET Vanguard (Crestline) GA-77RETL Vanguard (Crestline) GA-77RET Vanguard (White Panel) GA-77RETL Vanguard (White Panel) GA-78RV Maestro 30 (Tweed) GA-78RVT Maestro 30 (Tweed) GA-78RVS Maestro 30 (Tweed) GA-79 Multi-Purpose (Tweed) GA-79RV Multi-Purpose (Tweed) GA-79RVT Multi-Purpose (Tweed) GA-79RVT (Crestline) GA-80 Vari-Tone (Tweed) GA-83S Stereo-Vib (Tweed) GA-85 (Two-Tone) GA-86 Ensamble (Tweed) GA-87 Stereo Maestro (Tweed) GA-88S Stereo Twin (Tweed) GA-90 GA-95RVT Apollo (White Panel) GA-95RVTL Apollo (White Panel) GA-100 Bass (Tweed) GA-100 Bass (Crestline) GA-200 (Two-Tone), Rhythm King (Tweed) GA-200 Rhythm King (Crestline) GA-300RVT Super 300 (Crestline) GA-400 Super 400 (Two-Tone) GA-400 Super-400 (Crestline) GA-CB GA-Custom BA-15RV Atlas IV Atlas IV (Power Plus) Atlas IV L (Power Plus) Atlas Medalist Duo Medalist Mercury I (Power Plus) Mercury II (Power Plus) Mercury II L (Power Plus) Mercury Medalist Titan I (Power Plus) Titan III (Power Plus) Titan V (Power Plus) Titan Medalist Thor 14W 1x10" Guitar Combo (identical to the GA-6 Lancer except for the 10" speaker, and to the Epiphone EA-30 Triumph) Speaker: 1x10" Inputs: 2 2 Channels: 2 Volume Controls: 2 Tone Controls on Each Channel: 1 for both channels Tremolo: No Tubes: 5 (2x12AX7, 2x6V6, 5Y3 or Pre (2x7025), Pow (1x6V6 PAIR 5Y3)) Extension Speaker Jack: No Monitor Jack: No Watts Output: 14 Shipping Totals: 1959: 1, 1960: 386, 1961: 106 Push-pull 6V6s; like a Fender 5D3/5E3 Tweed Deluxe; cross between the two Fender circuits (Miles O'Neal's web-site; May 30, 2003) I have a 1961 version, bought it broken, and had it thoroughly gone through, NOS tubes, caps, some repairs. The two interactive channels offer lots of options.
Supposedly only 14 watts, it seems comparable to a 22 watt amp. mic.): 3 1 Channels: 2 Volume Controls: 2 Tone Controls: 1 Tremolo: No Tubes: 5 (12AX7, 6SL7, 2x6V6, 5Y3 or Pre (1x7025, 1x6SL7), Pow (1x6L6 PAIR 5Y3)) Extension Seaker Jack: No Monitor Jack: No Watts Output: 14 Shipping Totals: 1955: 110, 1956: 57, 1958: 8 Harmony Central Review GA15 Harmony Central Review GA15 110 Combo Schematic with 1x12AX7, 1x6SL7GT, 2x6V6GT, 1x5Y3GT This amp was introduced in 1955.
([email protected], 'Re: Gibson Minuteman', alt.guitar.amps, Aug 6, 1996) Greatest reverb and tremlo sound of it's time. (Fred Duffer) At 14 to 18 watts it is not really very loud but what a tone.
[...] reverb and tremlo [footswitch] (see pics) (ebay, June 21, 2003) Rate the GA-15RVT Explorer (white panel)... With volume below about 25% it is quite clean but roll it up above 50% and it really sings.
We combined all of our information into a computerized database for this project and for the past 18 months have been slowly (sadly, very slowly) gathering information that we collect ourselves as well as from other people. What we need is the following: 1) Model name 2) Model number on the tube chart 3) Date code letters on the tube chart 4) Speaker codes (if speaker is original) 5) Transformer codes (if the amp doesn't have date codes on the tube chart) 6) Cosmetic features (flat/raised logo, tweed/tolex, blackface/silverface, rough/ smooth blond tolex, white/skirted knobs, TV-front/wide-panel, etc.) One very interesting and very important factoid has surfaced regarding the date code letters on the tube chart.
14-16W 1x12" Guitar Combo with Reverb Speakers: 1x12" Inputs: 2 2 Channels: 2 Volume Controls: 2 Tone Controls on Each Channel: Bass, treble Tremolo: No Reverb: Yes Tubes: 7 (3x6EU7, 12AU7, 2x6V6, 5Y3) Extension Speaker Jack: No Monitor Jack: No Watts Output: 14-16 Shipping Totals: 1961: 135 Harmony Central Review GA-15R Rate the GA-15RV Maestro (tweed)... Shipping Totals: 1959: 1421 Harmony Central Review GA18 Explorer Rate the GA-18 Explorer (Tweed)...
It’s been over a year since Part 2 of this series was printed, but that’s because I’ve been busy collecting data.
For those readers who may have joined us recently, I am doing some Fender amp research along with Devin Riebe and Greg Huntington.
Fender never printed any since there were plenty of leftover AB763 tube charts available and these were used well into 1969.
Although the cosmetics changed, the circuits remained unaltered from the blackface circuits on the earliest silverface amps.