Jen (Gretsch Playboy) - Harmon Booster [schematic]
- mmolteratx
- Degoop Doctor
Just cracked mine open and it matches Sonic VI's schem. Will post pics in a bit.
- sinner
- Old Solderhand
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Run through it again and seems to be fine.
I've changed trimmer size, added wiring, LED, and corrected pot tapers
Wiring is for NPN. I don't give a damn to source PNP silicons, dealing with PITA powering and stuff. NPN's won't explode
I've changed trimmer size, added wiring, LED, and corrected pot tapers
Wiring is for NPN. I don't give a damn to source PNP silicons, dealing with PITA powering and stuff. NPN's won't explode
The BC318Cs I bought from Mouser were NPN. You want NPN, Not PNP. I didn't worry about gain values. I think the 318s were in the 400-500 range. They're discontinued by Fairchild now. I'm sure anything similar will be fine.
http://www.mouser.com/Search/ProductDet ... 512-BC318C
http://www.mouser.com/Search/ProductDet ... 512-BC318C
hi guys!
i have a jen harmon booster and i want to know when was it made.
http://timemachinery.tumblr.com/post/16 ... on-booster here are some pictures. i heard that they was made from the late 60s. but my frien told me this one made round the 80s. are they made differently or did any circuit modification?
thanks!
i have a jen harmon booster and i want to know when was it made.
http://timemachinery.tumblr.com/post/16 ... on-booster here are some pictures. i heard that they was made from the late 60s. but my frien told me this one made round the 80s. are they made differently or did any circuit modification?
thanks!
- chicago_mike
- Tube Twister
this sounds so good on bass!!
Skyline FX 2013
- sinner
- Old Solderhand
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chicago_mike wrote:this sounds so good on bass!!
Who's layout did you used? Is that mean mine is confirmed?
- chicago_mike
- Tube Twister
Reviving old thread!!
My buddy has one that his dad bought long ago! Sounds amazing on bass and I need to clone this!!
My buddy has one that his dad bought long ago! Sounds amazing on bass and I need to clone this!!
Skyline FX 2013
I build it with BC549's and a 22K resistor instead of the trimpot; and it sounds AMAZING!