Welcome

Welcome to the home of Mr. Valco and all things Valco. I service and even build custom Valco-based amps, as well as service Fender, Gibson, Marshall, Danelectro or most any Vintage amp. Let me know if you need my help or have any questions and thanks for stopping by! - Terry Dobbs (a.k.a. Mr. Valco)

Latest Activity

Profile Iconphatdave, Jesse Branham and Billy Claire joined Valco Amp
yesterday
Billy Claire posted a discussion

Schematic for an older Dobro amp?

I have a Dobro amp that I think is very old. Has a 56, 57, 2 - 2A3's, and 5Z3 tube layout. Brown box, Lansing speaker, no black crinkle paint on chassis, pointy corners, and no place where a label was or ever could have been. I also have a 6107A and electronically, they couldn't be more different.Any schematics out there? Idea of age? My guess is 1933-34 since it sports early features - maybe unlabeled because it was made when they merged?thanksBilly ClaireSee More
yesterday
Craig Kerns left a comment for Richard Shatz
"Richard, you sick little monkey! I LOVE those laps! I have the Dobro 1935 Hawaiian #1 like you have on the wall, had to do a complete restore. Just learning to play it. Play it through a 1968 Supro, with the low impedance pickup, it sounds so…"
Monday
Leon C posted a discussion

Ever wonder about a bigger Supreme?

I've had three different Supremes from the early 60s era and really think they're great little amps. While I've gigged with them a couple times, I found myself wanting a little bit bigger sound--a bit more girth and a bit more clean headroom. So I decided to try to build something that fit that bill. I wanted to go with EL34s on the back-end as I have already built a couple models with 6L6s. But I didn't want this amp to be a LOT louder or cleaner...just a little bit. So I'm using a PT that…See More
Jul 14
David Turner liked Chris Lacey's video
Jul 12
Terry Dobbs replied to Joseph Santos's discussion need a schematic for a 1966 Vibra Verb
"Good job getting her fixed and thanks so much for sharing your schematic! Terry"
Jul 12
Joseph Santos replied to Joseph Santos's discussion need a schematic for a 1966 Vibra Verb
"Here are the other schematics that make up the Supro Vibra Verb. "
Jul 12
Terry Dobbs replied to Joseph Santos's discussion need a schematic for a 1966 Vibra Verb
"Good deal Joseph, I just sent you an email addressing this and your other issues you mentioned and yes, 10K plates are correct. As I recall they are 7 or 10 watt resistors too in the stock circuit. Good job!"
Jul 11

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My Ebay Listings

Check out my Valco auctions on Ebay. Don't miss a chance to get some well-serviced amps and rare Valco parts. My seller name is muddobber5.

History of Valco

The Valco company has its roots in the National String Instrument Corporation, which was founded in 1927. The company is famous as the first manufacturer of resonator guitars, which were hugely popular in blues and (a bit later) bluegrass music. National merged with the Dobro company, another maker of resonator guitars, around 1932 to form the National Dobro Corporation. The company began producing electric instruments in the 1930s that included electric guitars, lap steels, mandolins and amplifiers. These pre-war electric instruments are fairly rare today, though the lap steels pop up with some regularity. The archtop bodies for the guitars were sourced from Regal and then from Kay, but the electronics were developed and manufactured by National-Dobro. The Supro brand name was introduced in the mid-‘30s for cheaper electric instruments.

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