Installing HRM OD Trimpots in an OT

murky69nz
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« on: September 21, 2009, 09:41:05 PM »

Right

Love my OT, especially the clean. OD is a little dark for my liking....

Is it possible to add trim pots to the OD channel as per the HRM model - simple bass/mid treb - without affecting any of the clean chanel tone? If so, how is it best to go about this - it looks like these are mounted on their own board - perhaps get it from Nick?

Cheers


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mcinku
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Re: Installing HRM OD Trimpots in an OT

« Reply #1 on: September 22, 2009, 06:22:34 AM »

This is possible but not an easy task... I would rather try to reduce the value of snubber caps first. If that's not enough than replacing cathode bypass caps for something smaller or you could also try bright cap on the OD level pot...

just to give you few ideas
Wink


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bluesfendermanblues
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Re: Installing HRM OD Trimpots in an OT

« Reply #2 on: September 22, 2009, 07:18:32 AM »

Quote from: mcinku on September 22, 2009, 06:22:34 AM

+1

I wouldnt convert a Non-HRM to a HRM, just because the OD may seem a litttle darker than the Clean. Try different tubes in position V2, before you perform any mods. E.g. a Electro Harmonic 12AX7 tend to be a bright tube, so you could try that.


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