Fuzz Factory Reverse Schematic?

[Nostalgia]

Hello folks. So I am trying to build a Reverse FF using NPN GE Transistors for Q2 and Q3. Can anyone send a link to a verified FF Schematic? Thank you!

[patrick398]

If your asking for a straight up F Factory schematic to work off then yes:
http://2.bp.blogspot.com/-qqZIHqPbE0w/TxDKKaABGNI/AAAAAAAAAgY/IAf0ZXPTRtQ/s1600/zvex-fuzzfactory-rev1-1.gif

If you're asking for a verified Reverse F Factory schematic then no. I can't find one in any of the usual places.

Given that a regular F Factory uses PNP trannies and runs on negative ground power, using NPN would require you to use positive ground power...

Also from what i can tell from info online it seems like Zvex had the 111 transistors for this thing specially made? Seems pretty crazy.

Definitely doable but not sure how it was compare to the Zvex unit. What's the reason for wanting to build the reverse version over the original?

[patrick398]

Just found this:
https://www.circuitlab.com/circuit/2nrwn7/screenshot/540x405/

Looks like someone sim'd it. It mentions in the notes than nothing was re-biased to account for swapping NPNs in for the PNPs

[Nostalgia]

If your asking for a straight up F Factory schematic to work off then yes:
http://2.bp.blogspot.com/-qqZIHqPbE0w/TxDKKaABGNI/AAAAAAAAAgY/IAf0ZXPTRtQ/s1600/zvex-fuzzfactory-rev1-1.gif

If you're asking for a verified Reverse F Factory schematic then no. I can't find one in any of the usual places.

Given that a regular F Factory uses PNP trannies and runs on negative ground power, using NPN would require you to use positive ground power...

Also from what i can tell from info online it seems like Zvex had the 111 transistors for this thing specially made? Seems pretty crazy.

Definitely doable but not sure how it was compare to the Zvex unit. What's the reason for wanting to build the reverse version over the original?

I have a few Sylvania NPN spam cans laying around so I just wanted to try bulding a reverse FF. Thanks for the link!