Nettet7. apr. 2024 · Hoffman Amplifiers Tube Amp Forum, What the world needs - another D-style amp. Welcome To the Hoffman Amplifiers Forum April 10, 2024, 03:12:31 am: Welcome, ... Now its nice and quiet, and being used in a Wet-Dry rig with my Hoffman style AB763 single channel DR. Nice! Nettet20. okt. 2004 · Theairtightgarage $255.00 "Hoffman" AB763x4 [AB763x4] This is the Hoffman AB763 board kit that has had cathode and grid resistors added to the power section to support four output tubes. I call this the AB763x4 board. This board is a good replacement for the "reissue" amps, or to "roll your own" if you can build the chassis, …
The AB763 circuit can be Click on the links below for build …
Nettet31. mar. 2009 · I've completed a single channel AB763 using the Hoffman layout and my own design turret board. A initial power-up w/o tubes PS and transformer voltages looked good. (I'm running about 80vac from my variac.) Plugged in the rectifier (GZ34) switched out of standby and after 3-4 seconds had funny squeaks and growls and then the fuse … NettetPlease visithttp://www.p2pamps.com idyllwild shopping
Hoffman AB763 grounding
NettetThe Amp Tech still has my old Fender 65 DRRI, as such he was able to do a like for like comparison with the Hoffman AB763. He noticed that my Cab is about 40 mm taller … Nettet1. mai 2008 · Hoffman boards are easy to service, and are very well supported over on Doug Hoffman's site, www.el34world.com Hatcher also builds some great amps for well known artists. Of the ab763 clones out there, Doug seems to stay really close to the original circuit, albeit laid out in his fashion. The bias trem is a plus. C cantwrite … NettetThe AB763 circuit can be AB763 short board notes: any of these models Click on the links below for build information The only difference on a 4 power tube board is that it has 4 x 470 ohm screen grid resistors --------------------------------- Link - Common Hookup Info and 4 x 1 ohm cathode bias resistors. The AB763 short board has these idyllwild snow conditions