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Gretsch - Playboy ( = Jen - HF-Modulator )

Posted: 11 Apr 2008, 14:45
by MoreCowbell
Another Jen product...

SCHEMATIC AND PROJECT FILE

Check correct schematic below.
  • Orientation of Q2 is wrong, C and E need to be switched
  • C4 = 220pF, not 0.0022uF

Re: Playboy HF Modulator

Posted: 11 Apr 2008, 16:08
by junkwork

Re: Gretsch - Playboy ( = Jen - HF-Modulator )  [schematic]

Posted: 11 Apr 2008, 17:26
by analogguru
And again a case of a wrong schematic......
even when a correct one exists for more than three years:
http://analogguru.an.ohost.de/001/schematics/Jen_HF-Modulator.gif

Image

IMHO that´s unserious business not to update the files and by this help the people to make their units work properly.

analogguru

Re: Gretsch - Playboy ( = Jen - HF-Modulator )

Posted: 11 Apr 2008, 22:26
by sonicvi
So is this thing just a really high speed tremolo basically? Anyone have any clips of one?

Re: Gretsch - Playboy ( = Jen - HF-Modulator )

Posted: 11 Jul 2010, 12:20
by amsmith3
Just transcribed this vero layout to a schematic... transistor Q3 has collector going to earth, this doesn't seem right? I've just finished building this pedal using the ggg schematic which I can confirm is WRONG.

Re: Gretsch - Playboy ( = Jen - HF-Modulator )

Posted: 11 Jul 2010, 20:55
by amsmith3
Does your schematic match that one?
Yes, it does. My bad. :slap:

I'll alter my circuit to match this and see what happens...

Re: Gretsch - Playboy ( = Jen - HF-Modulator )

Posted: 12 Jul 2010, 22:26
by amsmith3
Hokay, built the vero design. Works fine now. Not much modulation though. It's a nice tone that comes through, with a little bit of resonance but nothing like in the audio samples on the french page. Anyone else get similar results?

Re: Gretsch - Playboy ( = Jen - HF-Modulator )

Posted: 15 Jul 2010, 19:04
by amsmith3
Thanks for the sample, that's pretty similar to what mine sounds like. Thanks for your help on this one guys.

Re: Gretsch - Playboy ( = Jen - HF-Modulator )

Posted: 11 Jun 2020, 08:50
by modman
  • updated the first post with new pictures
  • restored dead links
  • added the correction

Re: Gretsch - Playboy ( = Jen - HF-Modulator )

Posted: 11 Jun 2020, 15:48
by Rambozo96
I can see it’s a tremolo with a fast LFO speed. I wonder how well it would work if you lowered the 47n caps to something else? Could be a fun mod to include for anyone wanting to build one.