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Cardinal Harmonic Tremolo with TAPLFO

7/25/2014

2 Comments

 
The Cardinal Harmonic Tremolo is a great tremolo by Jon Patton that is based on the harmonic tremolo effects found on certain Fender amps 1960-1964. "It’s an unusual, and beautiful, combination of mild phasing and amplitude modulation".

I decided to make a layout without the regular IC LFO and use the TAPLFO from Electric Druid insted (as suggested in the schematic). It was easier to make two separate board for the tremolo and LFO. The recommended vactrol VLT5C1 works best in this circuit. The 10K trimmers set the bias for the J201. Just turn them until it sounds good. :)
Picture
The TAPLFO board is just a slightly modified version of the stand alone board I did before. Read more about the required HEX code and PIC programmer in my earlier Tap Tremolo post or visit Electric Druid.
Picture
2 Comments

Discrete Tube Reamer

7/7/2014

1 Comment

 
This is discrete version of The Tube Reamer by Runoffgroove, a very stripped down Tube Screamer. Posting the Flying Guillotine Fuzz reminded me of the "Diode Compression Op Amp" by Joe Davisson, as used here insted of a 4558 IC. It's been reported to sound smoother. Maybe I'll have to built the IC version to compare. :)
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I found it a bit too bright and recommend Increasing the 33nF cap to 47nF for less highs.
1 Comment

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    All the layouts are Verified unless noted.

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