The Amp Garage

Here is the real serial no. 048; T. Blug interviewed one of the Roy Bros and in this exchange it's clear that Dumble sent boxes of unfinished parts to the Bros; the Bros then made amps from those parts. The Kittyhawk specimen discussed here has a stamped serial number A048 with a different font than...

This is how Howard Dumble powered 5V relays with the filament supply on one of my Dumble-ized Princeton Reverbs. The amp was probably built around '79-'80 by H.A.D. himself. Those two blue-green relays (ITT manufacture, RZ-5) were first introduced in Radioshack catalogs back in 1979 but continued fo...

here's a Dumbleland Overdrive with similar cosmetics.....

https://www.instagram.com/reel/DP3_XDrkXXX/

Is there consensus that the Kitty Hawk on Reverb is in fact an amp built by Dumble? Is this the earliest use of Tandy Wire & Cable coax? The amp pic I reposted for comparison has grey coax, which is consistent with other amps from that time period. I don't know why Kitty Hawk would have used Tandy ...

I was in contact with the DPS last year about one of my Dumble modified Princetons (a gutshot for your viewing pleasure); It's an early 70s build. I was told that the ledger, which they built off Dumble's records, was incomplete. I was told that the earliest and most recent builds may not be in thei...

The problem is, all of the components used are 2000's era. So, unless there was time travel involved.... I also have my doubts about the originality of the cabinet itself. You could try contacting the dudes at Dumble.com/preservation society. They have a ledger but it isn't complete (missing stuff ...

Would Dumble have converted a Marshall Popular to an 18 watt? Did he ever sign amps? IDK. That's why I posted it. The cabinet is interesting also. I'll post pics. There are Dumble amps out there with his signature and handwriting on them. One of my Princetons that he built has his name on it. Very ...

Hello! I have an amp which I'd be grateful for some community input on (as someone who is entirely incapable when it comes to electronics, circuitry, etc), and which may be of interest to you guys. I have a wonderful old Fender Princeton from late 1963 - it's a transitional "tuxedo" model, so the b...