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 Tr2 (Tremolo Pedal) Modification
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jjj
Copper Member

Chile
3 Posts

Posted - 04/12/2009 :  01:04:02  Show Profile  Reply with Quote
Normally, one has to press the pedal to turn on the effect, then press the pedal again again to turn off the effect.
Now my Tr2 pedal is only active when I press the pedal.
I also changed the power supply so that it's always on, because I don't use batteries in my studio.
See my circuit modifications:
http://rapidshare.com/files/220240396/Circuit_NOW_.bmp.html

ChristoMephisto
Platinum Member

Canada
1288 Posts

Posted - 04/14/2009 :  23:16:40  Show Profile  Reply with Quote
Thought reducing R9 increases the effect sound, not increasing R19
or does r19 increase one aspect of the effect?
Might be cool to have a really intense tremolo effect but pulled back in volume

FYI for everyone, Keeley uses the mids knob from the mt2 for his volume control. He uses the 100k for the tr2's depth, and one of the two 50kc (reverse audio) with a trim pot to bring it down closer to 10k. One review said that at 11:00 was unity gain (ie stock 10k) leaving about less than half to decrease the effect sound.
Found a site with a bunch of keeley mod-sters talking about the tr2 and the mt2 pot.

Just got what you're doing with your other mod, it's like the Unlatch feature in the VB-2 Vibrato

very cool

Edited by - ChristoMephisto on 04/14/2009 23:20:47
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