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Old 5th July 2012, 08:13 PM   #1
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Default Sylvania 45C14M progress.

i am almost finished with it
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I have a question though. on the photo facts manual it says the speaker impedance for one channel is 3-4 ohms and the other channel is 6-8 ohms, would it be safe to run a 4 ohm speaker in the 6-8 ohm channel if i don't max out the volume? I remember reading that tube amps are more resilient with mismatched impedance

also for the life of me i cannot locate a replacement volume/loudness pot. I cleaned it out with deoxit but it still has dead spots and is very scratchy. does anyone know where i can find one?

I would really appreciate help locating a pot
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Old 5th July 2012, 08:27 PM   #2
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It's not likely that you will find a replacement pot for your amplifier.
2.2megs with a loudness tap at 650k is not a standard pot value.
Potentiometers with loudness taps haven't been manufactured for many years.
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Old 5th July 2012, 08:43 PM   #3
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Quote:
Originally Posted by Frank Berry View Post
It's not likely that you will find a replacement pot for your amplifier.
2.2megs with a loudness tap at 650k is not a standard pot value.
Potentiometers with loudness taps haven't been manufactured for many years.
that's what i was afraid of : / I am mainly hoping someone on here just happens to have new old stock replacement lying around I can buy off of them. I have asked several repair shops with no luck. mouser electronics was even helping me hunt one down but they gave up.....
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