Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: HotBluePlates on August 06, 2020, 01:26:19 pm

Title: Learn Something: Back-bias & Silverface Reverb Units
Post by: HotBluePlates on August 06, 2020, 01:26:19 pm

I forgot I wrote up this little chestnut over on TGP:  Back-bias & a Better Way to Turn off the Fender Reverb Unit (https://www.thegearpage.net/board/index.php?threads/learn-something-back-bias.1920836/#post-25997679)

Title: Re: Learn Something: Back-bias & Silverface Reverb Units
Post by: sluckey on August 06, 2020, 02:22:08 pm

Good example of applied back bias and a good explanation as well. Also a perfect example of what the bored CBS era engineers could accomplish! So complicated. So stupid. I don't expect to ever see a reissue of that circuit.   :l2:

Title: Re: Learn Something: Back-bias & Silverface Reverb Units
Post by: Latole on August 06, 2020, 02:43:14 pm

Very interesting, I did not know back Bias.
Thank you to share

Title: Re: Learn Something: Back-bias & Silverface Reverb Units
Post by: tubeswell on August 06, 2020, 06:45:00 pm

Quote from: sluckey on August 06, 2020, 02:22:08 pm

So complicated. ... :l2:

(https://i.pinimg.com/564x/1c/bc/c9/1cbcc9d069460fed2e71f64a387d26b5.jpg)

Title: Re: Learn Something: Back-bias & Silverface Reverb Units
Post by: shooter on August 06, 2020, 07:20:16 pm

Ok, it was worth following all the links just to end up at Aiken's  :icon_biggrin:


lots of variations i'll never use, a good refresher read though, no I can't explain what I read