Presence pot defective

HIWATT amps from the Hylight Electronics era

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thames
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Presence pot defective

Post by thames »

Hello

I noticed that my Presence pot wasnt working properly.
Its a Radiohm branded pot, 220k. I see it has been replaced sometime ago (or swapped... anyway).
The stock layout calls for a 100k pot. Actually, the presence is more like a on-off switch on 9-10, either full (10) or cut (0-9).
Is it the pot, or sounds like something else ?
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OldSchoolDave
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Re: Presence pot defective

Post by OldSchoolDave »

In my experience, the Hylight Hiwatt Presence control is....shall we say "subtle" in the first 2/3rds of its sweep.

By going to the original 100k pot, you'll likely improve your "On/Off switch" experience to a "noticeable between 2:00 and 5:00" one. Go ahead and replace it - just don't expect a huge change.

Dave
...Hey! I played that song when it was new...

http://www.OldSchoolDave.com
thames
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Re: Presence pot defective

Post by thames »

ah ok... good to know.

Is there a source for NOS Radiohm pots ?
Bryce
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Re: Presence pot defective

Post by Bryce »

I'll second the "subtle" remark.

I'd also like to add that, should you have treble anywhere in the late afternoon, "on" is the equivalent of getting stabbed in the ears with pins and needles. It's the very definition of shrill. Sounds great with treble at a decent hour though.
thames
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Re: Presence pot defective

Post by thames »

Last question : should I use an AUDIO or LINEAR taper pot ?
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mhuss
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Re: Presence pot defective

Post by mhuss »

LINEAR :D

--mark
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