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 Post subject: knightkit Amp
PostPosted: Nov Thu 01, 2018 7:07 pm 
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Joined: Jul Sat 15, 2006 3:54 am
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Location: Zeeland MI
Finally got my little KM-15 working. Did a complete recap, replaced a few out of tolerance resistors. DeOxit D5 on the pots. New 12AX7s, rectifier and matched EL34/6BQ5s. Worked for a little bit, and then got scratchy sounds. Volume pot seemed ok. So I applied DeOxit to the tube sockets. Still a bit noisy. Put it away for a month. Tuesday I get it back on the bench. This time, I used DeOxit Fader Lube on the volume pot...muchas better. Played 4 monaural LPs and it still sounded good. Now on to my recalcitrant Heathkit EA-3.
RW

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 Post subject: Re: knightkit Amp
PostPosted: Nov Thu 01, 2018 8:46 pm 
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Joined: Jan Thu 01, 1970 1:00 am
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Location: Albuquerque, NM 87123
If you have to clean a volume control twice then it probably should be replaced. EL84 is a 6BQ5.


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 Post subject: Re: knightkit Amp
PostPosted: Nov Thu 01, 2018 9:51 pm 
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EL34? Whoops. Anyway, will see about replacing pot eventually.
RW

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 Post subject: Re: knightkit Amp
PostPosted: Nov Sat 03, 2018 3:16 am 
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Location: Central PA 16801
I would ABSOLUTELY REFRAIN from putting any kind of lubrication or non evaporating cleaners into the tube sockets.

this includes band switches in radios as well.

it is a disaster waiting to happen.

steve

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 Post subject: Re: knightkit Amp
PostPosted: Nov Sat 03, 2018 3:54 am 
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Joined: Jan Thu 01, 1970 1:00 am
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Location: Albuquerque, NM 87123
Dutch Rabbit wrote:
I would ABSOLUTELY REFRAIN from putting any kind of lubrication or non evaporating cleaners into the tube sockets.

this includes band switches in radios as well.

it is a disaster waiting to happen.

steve


Most controls come lubricated from the factory. I have been cleaning controls with cleaners that have lubricant in them for 50 years, with no ill effects.


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 Post subject: Re: knightkit Amp
PostPosted: Nov Sat 03, 2018 4:00 am 
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ok.

steve

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