Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: taylorc315 on May 27, 2016, 02:12:20 pm

Title: Adding a preamp to my 18 watt Stout Build
Post by: taylorc315 on May 27, 2016, 02:12:20 pm

Is there a lay out for adding a preamp to the 18 watt stout design? I think that it is pretty straight forward, but would love some input.

Thanks

Title: Re: Adding a preamp to my 18 watt Stout Build
Post by: sluckey on May 27, 2016, 02:28:36 pm

http://el34world.com/Hoffman/files/Hoffman_Stout.pdf (http://el34world.com/Hoffman/files/Hoffman_Stout.pdf)

Title: Re: Adding a preamp to my 18 watt Stout Build
Post by: taylorc315 on June 04, 2016, 03:35:49 pm

This may be a dumb question, but here goes should my filter caps be draining on their own? I'm using the jj 40/20/20/20 cap. As soon as i shut the amp off the voltage drops right away. 300V down to 0 within seconds. What am i doing wrong😕

Title: Re: Adding a preamp to my 18 watt Stout Build
Post by: sluckey on June 04, 2016, 05:46:31 pm

I don't see a problem.