
Gibson GA-20T (1956)
Vintage
So what makes this 1956 GA-20T so special? It's got the perfect combination of looks, sound, and tonal versatility that will keep you smiling every time you plug into it.
Closely related to Fender's Tremolux, the GA-20T is a two-channel 1x12 combo with Normal and Tremolo channels. The former uses a 12AU7 preamp stage with the latter incorporating the 5879 pentode. This gives the player two different preamp flavors, with different gain voices, respectively. Combined with the great tube tremolo (that's where the 6SQ7 tube comes in), it's got great tonal range for a low-powered amp. While its bigger brother GA-40T has a more aggressive overdriven tone, the GA-20T shines with a warm low volume vintage voice that pairs very nicely with single coils. Its breakup is more reserved with a rounder attack, too, making it a nice choice for alt country, singer-songwriter, and folk rock based material.
This is an exceptionally clean example of the last year of Gibson's two-tone poodle-esque vinyl and dark brown covering before moving to a slightly tweaked two-tone look and logo change. It's just recently been serviced and sounds beautiful!
It's hard to argue the value of a great 50s Gibson amp like this.
**Please Note: All vintage amplifiers - regardless of service history - contain electronic components that will eventually require replacement or repair. This is often unpredictable and should be expected as a vintage amplifier owner. We are not responsible for additional service upon receipt.**
| Power | 12-14 Watts |
| Controls | Volume | Volume | Tone | Depth | Frequency |
| Switches | On/Off |
| Inputs | 4 |
| General | Plywood cabinet |
| Covering | Original Two Tone w/ original grill cloth |
| Tubes | (2) 6V6 | (1) 6SQ7 | (1) 5879 | (2) 12AX7 | (1) 5Y3 |
| Speaker | 12" Jensen P12R |
| Transformers | Original |
| Service History | Recap / 3-prong cable |
| Dimensions | 16½" x 20" x 9½” |
| Weight | Approx. 30lbs |
| Serial Number | 34479 |
Every instrument is thoroughly checked and set up before shipping fully insured via UPS with tracking to your door. We reuse boxes and materials to cut waste when they meet our protection standard.
Inspect it, play it, and if it isn't right, contact us within 48 hours of delivery to arrange a return or one-time exchange. Returns are subject to a 5% restocking fee, and the buyer covers shipping both ways.
Pricing
We price vintage instruments using current market trends and our extensive in-house sales history, ensuring each piece is accurately valued and fairly positioned.
Tasteful Restoration
When restoration is needed, we approach it with respect and restraint - always in service of preserving the instrument’s integrity and extending its musical life for decades to come.
Accurate Listings
Every vintage guitar we list is authenticated by our seasoned team and photographed in high detail, with clear, honest descriptions that show exactly what you’re buying - no surprises.
Shipping
With decades of experience shipping high-value guitars, we know how to pack and protect vintage instruments so they arrive exactly as they should: safe, sound, and ready to play.
