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| Vintage Tape (Audio), Cassette, Wire and Magnetic Disc Recorders and Players Open-reel tape recorders, cassette recorders, 8-track players etc. |
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30th Mar 2017, 8:42 am
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#1 |
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Diode
Join Date: Mar 2016
Location: West Yorkshire, UK.
Posts: 9
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Revox B77 capstan trimpot
Good morning, whilst doing a recap on my Revox B77 the R14 trim pot on the capstan board has parted company with its wiper (as they do
 I've identified it as being a 10k ohms linear, but I'm unsure about the wattage. The two trim pots I have here are 0.2 and 0.5 watts, I'm guessing these will be too small, does anybody have an idea what wattage I would need? Thanks in advance
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30th Mar 2017, 2:03 pm
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#2 |
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Tetrode
Join Date: Sep 2016
Location: Tring, Hertfordshire, UK.
Posts: 87
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Re: Revox B77 capston trimpot
Hi This is quite common - from memory they are the same wattage as those used on the input/oscillator cards. I would be happy to fit either of the two you have.
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30th Mar 2017, 2:21 pm
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#3 |
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Diode
Join Date: Mar 2016
Location: West Yorkshire, UK.
Posts: 9
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Re: Revox B77 capston trimpot
Really?! This is great news.
Just wanted to double check as they seemed smaller than I expected when they came in the mail. Thanks very much for your reply
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30th Mar 2017, 6:09 pm
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#4 |
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Moderator
Join Date: Feb 2006
Location: Wembley, Middlesex
Posts: 7,225
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Re: Revox B77 capston trimpot
You need to obtain the 15mm types, they are not very common
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4th Apr 2017, 10:25 pm
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#5 |
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Diode
Join Date: Mar 2016
Location: West Yorkshire, UK.
Posts: 9
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Re: Revox B77 capston trimpot
Just a quick update to close this thread, The trimpot was indeed ok, had to snip the legs from the original and solder to those but it worked out fine once i got it running and adjusted back it to the exact original pitch.
Very surprised to hear the difference in sound after replacing all the Frako's, really worth doing.... Cheers
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