Vintage Tube Amp

Up for sale, a 1965 Supro Thunderbolt model S6420 combo amplifier in good condition and in perfect working order. This perennially popular vintage tube amp was made in the USA by Valco, the parent company which also produced amps under the National, Oahu, and Gretsch banners among others. Lightly compressed, focused, and delivering an elegant, touch-sensitive overdrive that’s sonically distinct, the Thunderbolt pushes roughly 35 watts through a pair of 6L6 power tubes and a Jensen C15P speaker. For everything from clean, wooly rhythm tones to saturated tube roar further up on the volume dial, the Thunderbolt delivers a pure sound with a simple yet ingenious circuit and only two knobs for Volume and Tone. Notable for being an early example of the Thunderbolt with a rectifier tube and sweet, tube driven “sag”, the amp has a 5U4 in the rectifier position, along with a pair of 5881 (6L6GC) power tubes and a pair of 12AX7 valves in the preamp. The speaker is the original Jensen C-15P ceramic magnet 15 driver, and the date stamp on the edge of the frame is from the 18th week of’65. The circuit is mostly original, with stock transformers that date to’65, and CTS pots that have visible date codes from the 16th week of 1965. The power supply features a replacement multi-section can cap, with just a couple additional modern caps inside the chassis to ensure optimal functionality. Cosmetically the chassis retains the majority of its black silkscreened graphics, and the chrome exhibits some areas of surface rust through the plating. The cabinet features the original blue/gray textured covering with some wear through the covering on the bottom enclosure edges and some light staining of the silver sparkle grillcloth. It’s missing the original Supro logo.

Works and sounds great! Valco made and serviced with only a few filter caps changed. Original speaker reconed as well. Little light stain on bottoms left of grill cloth. Barely noticeable (see pics).

Gave it a light cleaning. Also cleaned the pot and tube sockets. These amps are favorites in recording studios everywhere. They have a sparkling clean tone and a nice breakup when pushed. This one has been updated with a 3 prong cord as well as a jack that allows convenient use of an external speaker. (Used an existing stock hole and it is easily reversible if desired). This model is similar to a Supro 1606 or Gretsch 6150 of this era. Serial indicates first amp of 1962. Very solid cabinet construction and a simple 2 input, 1 knob layout. Utilizes 5y3, 6v6 and 12ax7. Like a Fender Tweed Champ, the amp has only one control knob-volume/on/off. Feel free to ask questions and check out my other listings. Will consider any serious offers.

This vintage Airline model 7214 tube amp is perfect for any musician looking for a classic sound. The case with the amp built in is specifically designed for a 3/4 size Supro Valco guitar. Made in the United States, this amp is a great addition to any musician’s collection. The set includes the amp and case only, making it a versatile option for any guitarist. Don’t miss out on the chance to own a piece of music history with the Airline model 7214. Great sounding little amp from 1964. Comes in original case. Cool tolex on these! Great condition and amp is working great. Does not include the original guitar that came with these.

This listing includes a Supro Royal Reverb S6450 TR Vintage Guitar Amp Speaker Combo. The amp was tested and is working properly. Comes equipped with 2x Jensen Special Design Woofers. Salesbaron is in Los Angeles, 90039. All major credit cards. Filing a claim should be reserved as a last resort to solving an issue. Please give us a chance to solve any issues that you may have for any reason before leaving feedback.

Supro Super 1606 Vintage Amp. The serial number dates to 1961. Rare original two tone covering with original speaker. Power cord is not dry rotted. Plays great with some nice clean tones. A classic in every sense. See the other listing for the Alkire E Harp that came with the Amp.

MEASURES APPROX: 13″ TALL X 12″ WIDE X 8 DEEP. SHOWS SOME WEAR/TARE TO MATERIAL WITH COSMETIC SCRATCHES, SCUFFS, MARKS, STAINS, SOME RUST ON METAL AREAS, ETC. PLEASE ASK IF YOU HAVE ANY QUESTIONS THANK YOU!

This vintage Valco Supro Comet guitar amplifier is a rare find for any musician or collector. With its classic design and high-quality vacuum tube technology, this cabinet amp is perfect for practice sessions or small gigs. Made in the United States in the 1950s, it has a timeless sound that is unparalleled in the world of guitar amps. The Valco Supro Comet is a one-speaker amp that has been suitably preserved over the years, making it an excellent addition to any vintage musical equipment collection. Its brand, Supro, is highly regarded in the world of guitar equipment. This amp is perfect for studio recordings, lap and pedal steel guitars, resonator guitars, acoustic electric guitars, and electric guitars. It has also been played on by famous musicians like Jimmy Page and led Zeppelin. Item is in used condition, untested and unrestored. Please see photos for details and condition.