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DIY Stompboxes => Building your own stompbox => Topic started by: kingswayguitar on April 13, 2012, 09:55:22 AM

Title: loud, jfet booster
Post by: kingswayguitar on April 13, 2012, 09:55:22 AM
my first post:
can anyone explain why this is so LOUD without any of the typical fuzzy/screaming/stuttering distortion?

http://www.aronnelson.com/gallery/main.php/v/Schematics-etc/j201j177.TIF.html (http://www.aronnelson.com/gallery/main.php/v/Schematics-etc/j201j177.TIF.html)

j201
D 6.65V
S 0.316V
Vp 0.6V

j177
S 5.82V
G 6.65V
D 0.295V

thanks
Bennito
Title: Re: loud, jfet booster
Post by: anchovie on April 13, 2012, 10:19:26 AM
It's supposed to be loud - it's a booster! You might want to put a volume control on the end.

It's not fuzzy because there aren't any clipping diodes, which would also limit the signal and make it less loud.
Title: Re: loud, jfet booster
Post by: R.G. on April 13, 2012, 10:45:52 AM
butbutbut is it - transparent?
Title: Re: loud, jfet booster
Post by: DDD on April 13, 2012, 10:48:44 AM
Pls note also: there's only ONE gain stage since the second stage is unity gain follower.
Title: Re: loud, jfet booster
Post by: Gurner on April 13, 2012, 12:09:45 PM
Quote from: DDD on April 13, 2012, 10:48:44 AM
Pls note also: there's only ONE gain stage since the second stage is unity gain follower.

Whilst it looks like one, I don't think it is....it looks like a boost to me.
Title: Re: loud, jfet booster
Post by: kingswayguitar on April 13, 2012, 01:32:43 PM
without the j177 it's not even close to that loud
Title: Re: loud, jfet booster
Post by: runmikeyrun on April 13, 2012, 04:25:22 PM
Quote from: R.G. on April 13, 2012, 10:45:52 AM
butbutbut is it - transparent?

runmikeyrun likes this.