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DIY Stompboxes => Building your own stompbox => Topic started by: Gus on February 18, 2021, 05:27:23 PM

Title: cool fuzz article
Post by: Gus on February 18, 2021, 05:27:23 PM
At the other forum I saw a cool fuzz from an older article in Radio- Electronics in the Davidoff library.

Look for

Jack Jaques "Solid State Fuzz Box"

I like how it has a simple mixer for the fuzz and clean sound

One can use NPNs and a N-channel flip the power and electro cpas

Did a search and found this look on page 34
https://worldradiohistory.com/Archive-Radio-Electronics/60s/1969/Radio-Electronics-1969-12.pdf (https://worldradiohistory.com/Archive-Radio-Electronics/60s/1969/Radio-Electronics-1969-12.pdf)

There is a transistor curve tracer before and other cool things

Title: Re: cool fuzz article
Post by: Rob Strand on February 18, 2021, 07:36:27 PM
It would pass for a Boutique pedal  :icon_mrgreen:.

HEP57  Silicon PNP, HFE typ. 350
Title: Re: cool fuzz article
Post by: iainpunk on February 18, 2021, 09:16:26 PM
the fuzz signal is out of phase, it might sound like a Gretch Contro Fuzz.

i have a lot of old silicon transistors from that era, i might have some of those HEP transistors, ill take a look tomorrow.

cheers

EDIT: i don't have those, i do have one other HEP transistor, its the HEP55
Title: Re: cool fuzz article
Post by: PRR on February 18, 2021, 09:39:43 PM
Holy tone-suck, Gusman!!

But looks like an article on antenna rotators (what??) got overlaid.
Title: Re: cool fuzz article
Post by: Gus on February 19, 2021, 04:31:09 AM
It was from 1969

I was thinking about how it might sound with a bass with the mixed in clean signal

Yes the fuzz is inverted polarity(if that matters with a fuzzed destroyed signal)

Things could be "fixed"

I did like the 2nd stage had a JFET at the input of the mixer output part
Title: Re: cool fuzz article
Post by: Markusk on February 22, 2021, 06:31:41 AM
Hello,
thanks for that cool fuzz. Im glad, to see sometimes some new Designs ;D
Title: Re: cool fuzz article
Post by: Phend on February 22, 2021, 07:54:39 AM
Ok, what a concidence,  the Cover page, ie page one, hints at my next project.  Top secret r and d, will be done soon, parts coming tomorrow.
Stay tuned, no antenna rotor needed, lol.
Title: Re: cool fuzz article
Post by: iainpunk on February 22, 2021, 08:52:01 AM
Ok, what a concidence,  the Cover page, ie page one, hints at my next project.  Top secret r and d, will be done soon, parts coming tomorrow.
Stay tuned, no antenna rotor needed, lol.
another mosfet of jfet MIAB?

cheers, Iain
Title: Re: cool fuzz article
Post by: Phend on February 22, 2021, 09:36:22 AM
^ we shall see. I hope it isnt going to be a radio. That 1969 magazine has lots of cool stuff in it.