Vintage Tube Amp

Works great, sounds better!

Up for sale, a 1953 Gibson BR-6 vintage tube amp in excellent condition and in perfect working order. Freshly serviced by our techs here at Mike & Mike’s Guitar Bar, this BR-6 is the three-input version as redesigned by Gibson in 1948, and one of the first examples to shift the chassis from mounting to the bottom of the cabinet to the top. Loaded with a vintage (replacement) CTS alnico magnet 10 speaker, the tone is warm and fairly dark in its voicing from 1-5 on the single Volume dial, gaining grit and overdriven roar pushing towards 10. The amp really shines when dimed out with the midrange character unique to octal preamp amps and a real gutsy, punchy sound that’s thick and saturated. The point-to-point circuit features the stock IRC pot and power transformer manufactured by Magnetic Components Co, with a date code from the 25th week of’53, while the original output transformer is mounted to the speaker frame. New premium capacitors are manufactured by Sprague, while much of the original circuitry, including two of the famed Grey Tiger capacitors, is present. The vintage replacement speaker was manufactured by CTS, with a date stamp on the magnet from the 30th week of’70. The amp retains its original smooth brown covering, made from the same material used on early’50s Gibson guitar cases. The enclosure shows relatively restrained wear considering its vintage, and the wicker grillcloth is very well-kept. The large “G” gold badge is intact central to the grill, with the small silkscreened Gibson logo in the upper right corner of the amp’s face. The control plate has clean silkscreened graphics, and the one brown chicken head knob is intact. The leather handle is a modern replacement.

Comes with parts as shown. Definitely send me a message if you’d like to discuss. The 1960′s Gibson Minuteman Guitar Amp is a vintage piece that is in great condition. This classic amplifier, model Gibson GA20 RVT, is a combo amp designed for lap & pedal steel guitar, acoustic electric guitar, and electric guitar. With its vacuum tube technology and United States origin, this amp delivers vintage sound quality perfect for performance venues. The single speaker provides a warm and rich tone that suits various genres of music, making it a versatile choice for musicians looking to add a vintage touch to their sound.

Gibson 10 speakers made by CTS or Oxford by the looks of them. The date is approx 1965 to 66 by the look of these. The Gibson orange label covered up the date & mfg code on the alnico magnet. I did not want to remove the Gibson. These speakers have been professionally re-coned by Slice Speaker Repair here in KC and sound incredibly good. The new surround and cones sound allot better than to vintage ones in my i opinion. Not different, just better. These can out of a highertrated Gibson combo so they are the high capacity ones that can handle the full power of a combo amp and dcr is 5.98 so 8 ohms. They are a matched set from the factory pulled from a working amp. On vintage replacement speakers.

HAS BEED TESTED AND WORKS BUT DEFINITELY NEED TO GO TO AN AMP TECH FIXED. DOES MAKE SOUND AND REVERB SEAMS TO WORK BUT NOT THE TREMOLO FOR SOME REASON. APPEARS TO HAVE THE ORIGINAL SPEAKER AND FOOTSWITCH WITH IT. LOOKS LIKE CORRECT TRANSFORMERS IN IT BUT A DIFFERENT REVERB TANK NOT SCREWED DOWN. HAD FOR MANY YEARS AND NEVER HAD IT REPAIRED. I DONT HAVE THE BACK PANEL EITHER WHAT YOU SEE IS WHAT UOU GET. COOL OLD AMP DESERVES TO BE FIXED UP AGAIN. CHECK OUT MY OTHER GOODIE’S IN MY STORE.

This is truly a great old amp. It is in rough condition but would make for a terrific project. The cabinet is rough. There is damage to the veneer on the cabinet. The large patch is with the item. There are a couple of other veneer damages. There should be two of the front bar applications. One of these is missing. The inside looks fairly clean. The plug needs replacing. When plugged in the amp powers up and does amplify but the amp starts humming. The humming gets louder and louder to an extreme pitch. I know nothing about amps and hope the description helps. I have no idea how much work it will take to restore this.

FEWER THAN 900 EVER BUILT!! Up for sale is an extremely hard-to-find Gibson GA-77 Vanguard (GA-77RVT) combo amplifier – one of the scarcest major-brand tube amps of the 1960s, produced in very low numbers compared to Fender, Ampeg, or even Gibson’s own GA-75/GA-79 lines. These rarely come up for sale in any condition, and far fewer are still fully functional. This one has been recently serviced, recapped, and is ready to play. Why This Amp Is Rare. The GA-77/GA-77RVT was only built in small production runs, and Gibson documentation confirms far fewer were made than the GA-5, GA-8, GA-20, GA-40, or Maestro series. Survivors are scarce, especially with original components and a working reverb/tremolo circuit. These were expensive when new and were primarily ordered for regional pros – not mass-market stores – which means very few original units exist today. Original Jensen Special Design speaker (period-correct and highly desirable). 50-watt class, serious stage volume. Gibson’s highest-end combo of its era. Aluminum control panel, classic Gibson look. Beautiful vintage wood cabinet. Why Collectors Want This Model. The GA-77 Vanguard is widely considered one of the best-sounding and most powerful combos Gibson ever built – and also one of the hardest to find. Most Gibson models of the era had production numbers in the thousands. The GA-77 series had only a fraction of that, making clean examples extremely scarce. If you’re looking for something different than a Fender Twin or Ampeg Reverberocket – something rarer, richer, and historically important – this is the one.

Up for sale, a 1954 Gibson GA-20 in excellent condition and in perfect working order. Featuring original two-tone cosmetics, a Jensen P12R speaker, and a professionally serviced circuit, this GA-20 is the perfect mid-size combo from the golden age of tube amplification. In many ways analogous to Fender’s narrow panel tweed amps of the same era, the GA-20 features a four input design with a 6V6 power tube pair, 5Y3GT rectifier, and dual triode (12AX7, etc) tubes in the preamp. Offering distinctly different voicings between the single Microphone input and the three Instrument inputs, the GA-20 is at its most aggressive via the Mic channel. While this input does offer a modicum of clean headroom, it quickly overdrives with a sizzling, chewy sound that’s extremely smooth. The Tone control has an absolutely massive sweep, actually adding a bit more gain when turned up. Maxing out both Volume and Tone knobs yields a ripping, cutting sound that interacts equally well with single coils and humbuckers. The Instrument inputs have more range in the clean signal, with a full-bodied and sweet sound that works well with a host of effects pedals. Turning down the Tone knob on this channel and pushing the Volume can achieve a very nice bark and a spitty quality almost akin to certain fuzz boxes, depending on the guitar being used, and once again diming everything out delivers plenty of richness and roar. The point-to-point circuit has been professionally serviced and thoroughly recapped with premium tubular signal caps in the preamp and F&T power supply caps. The output transformer has been replaced with a vintage-accurate Mercury Magnetics ToneClone GA20-O, mounted to the speaker frame, while the original power transformer is intact, mounted to the back of the chassis. The speaker is the original Jensen P12R alnico magnet driver which has a dark blue/green frame. The speaker has been recently professionally reconed, and the date code on the edge of the frame is from the 9th week of’54. The original two-tone covering exhibits limited wear (particularly when considering the fragility of this material compared to a conventional tolex or tweed), primarily concentrated around the edges, and half of the gold Gibson badge is still intact on the amp’s face. The graphics on the brown faceplate are clean, the brown chickenhead knobs are present, and the leather handle has been replaced.

Up for sale, a 1941 Gibson EH-125 1×12 combo amp in excellent condition and in perfect working order. Introduced in’41, just prior to US involvement in WWII, and only produced for a few years, this rare, early Gibson amplifier is the little sibling of the EH-150, pushing 10-12 watts of power via a pair of vintage RCA 6V6 tubes through the original field coil speaker. This amp features three inputs: one Microphone and two Instruments, along with a single Volume control which dictates only the Microphone channel (the Instrument channels are fixed/maxed volume). Tonally, this amp is sweet and smooth, with fantastic clarity and a kind of burnished warmth that one can really only find with the amplifiers produced in the very first days of electric guitar amplification. The Microphone channel, as the only channel with a Volume control, enables the amp to be pushed up into perfectly creamy edge-of-breakup territory, with a bluesy bite and just enough sizzle. The point-to-point circuit features the original pair of transformers (output transformer mounted to the field coil speaker frame), with a few new tubular signal caps installed as needed, and a modern Alpha-branded Volume pot. A couple stock signal caps and many original carbon comp resistors are present, and the power supply has been recapped with high quality F&Ts. A three-prong power cable has also been installed. The tubes are a matched set of vintage RCAs, including the 6V6 power tubes, a 5Y3 rectifier, and a 6SJ7 and 6J5 valves in the preamp. The original field coil speaker is present; the coil has been rewound and the speaker has been reconed. The original coil cover is intact, and there is a 1941 date stamp on the edge of the frame. The enclosure retains its original “rich Cordoba brown” covering, accented by a small Gibson silkscreened logo, with relatively restrained wear considering its vintage. The black metal grill is clean, the latches that hold on the removable back panel are all intact and functional, the original leather handle and leather corners are present, and the original chickenhead knob is intact.

Very cool vintage 1955 Gibson GA-5 Les Paul Junior guitar amp. Amp shows some staining to the tolex, the handle is missing and there is a small rip on the speaker covering. Amp works and sounds great. Very quiet up to 3 o’clock on the knob, it gets a little noisy when dimed but not too bad. It has the early Les Paul Junior script on the plate. There is a very valid reason for people calling these the Champ killer. Amp still has the original 2 prong power cable.