Tube Amp Archive

I found this tip for treating AB resistors on a British electronics store webpage, does this sound like good advice? http://www.hificollective.co.uk/components/allen_bradley_resistors.html As stated Allen Bradley resistors are carbon composite, being made of an organic material they do have the tend...

Thank you Firestorm, that is very kind of you. I look forward to seeing the pics.
Bob

Thank you all for the thoughtful and insightful suggestions. You've given me more to consider than I imagined. I'll begin the scavinger hunt and will report back once I'm finished. I hadn't considered the push-back wire and lead-dress at all, thanks Firestorm for the tips (as well as sharing your ob...

CaseyJones wrote: For utility use stick a brand new set of Eminence Legends in there. They're U.S. made in Eminence, Kentucky. The Eminence speakers sound great and you'll never blow them. Thanks, I'll check them out. I've been sort of wrapped around the axel about trying to build this chassis as c...

Thanks fellas,
As I'm building the AB763 circuit, looks like the Jensen C12N would be the correct speaker. I see that these are still being made by Jensen.

Anyone care to offer their opinion about how close these are to the ones made back in the 60's?

What speaker(s) came installed in the early Blackface Twins? I've seen several sources listing different brands. Does anyone know the specifics (brand, model, specs)?

www.tedweber.com publishes a BOM Excel file for all of his kits. This is a pretty good starting point. Thank you, this is quite helpful. Just did a quick once-over and see that the pots, bias pot and the few caps I looked at match up. I may have to settle for a list of this type vs. a fender produc...

Thank you gentlemen. These are helpful. The end state I am trying to achieve is to recreate the sound produced from this early circuit. I don't have a timeline set, so I'll take all the time I need, and plan to stockpile components one-by-one. I am finding that resisting the call of better designs, ...

Hello, does anyone have (or know of a source for) a parts list for the AB763 version? Also, beyond the component values, I'm trying to determine the exact types as originally used. I do realize that certain components are simply no longer available in their 50's/60's form, but I'm searching for as c...