Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: joesatch on December 09, 2023, 12:03:47 am

Title: hi - low input
Post by: joesatch on December 09, 2023, 12:03:47 am

trying to wrap my head around these inputs. they both look the same (as far as level). just two separate inputs not one higher than the other?

Title: Re: hi - low input
Post by: sluckey on December 09, 2023, 12:08:44 am

https://sluckeyamps.com/misc/Amp_Scrapbook.pdf

Look at page 12.

Title: Re: hi - low input
Post by: Latole on December 09, 2023, 04:00:15 am

All great informations Sluckey , thanks

Title: Re: hi - low input
Post by: Jonas on December 20, 2023, 11:03:44 am

How is everyone doing the physical connections for the 2 68K resistors? Are the putting the resistors at the jacks or at the tube socket? Got any recommendations for mechanically supporting the 2 resistors where they connect?

Title: Re: hi - low input
Post by: sluckey on December 20, 2023, 11:48:47 am

I can't speak for everyone, but this is how Leo did it and he built a lot more of these than everyone else...

(https://sluckeyamps.com/64DR/13.jpg)

Title: Re: hi - low input
Post by: JPK on December 20, 2023, 12:09:50 pm

Thanks for the question. That was a nice little lesson on inputs.