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 Pickup mix rotary switch (Alpha Taiwan) 
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Joined: Thu Feb 28, 2019 4:35 am
Posts: 69
Location: East Lothian, Scotland
Post Pickup mix rotary switch (Alpha Taiwan)
Chaps,

Anyone know the exact model number of the Alpha rotary selector switch in the PASV-4 Block? One of mine is very crackly and intermittent and I'm in the UK so shipping from the US would take a while.

I've tried cleaning it a couple of times with Servisol Super 10 but it's still wonky.

Cheers,
Nick


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Sun Jul 16, 2023 10:59 am
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Joined: Tue Mar 17, 2015 11:19 pm
Posts: 1742
Location: Calgary, Alberta, Canada
Post Re: Pickup mix rotary switch (Alpha Taiwan)
I use a product from CAIG Labs - called Cramolin red and Cramolin blue.
The red cleans and de-oxidizes. The blue acts as a contact protectant.

These days the product is called De-Oxit.
https://caig.com/deoxit-d-series/#

My version apparently causes cancer and was banned.
I've had the same bottles for over 40 years. (Excellent product)
I used it in the military for cleaning SEL 32/7X mainframe connections.

_________________
#404 Stick - (1978) Angico hard wood.
#6460 Railboard - Black with glow inlays.


Sun Jul 16, 2023 3:54 pm
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Joined: Thu Feb 28, 2019 4:35 am
Posts: 69
Location: East Lothian, Scotland
Post Re: Pickup mix rotary switch (Alpha Taiwan)
Thanks!

I actually had another go with the Servisol and it's working fine now.

Would still be good to know the part number just in case. I think it's an Alpha 4 position, possibly one of these:

https://www.mouser.co.uk/ProductDetail/ ... yKgw%3D%3D
Mfr. No: SR2511F-0304-19R0B-E9-S-W-159

https://www.mouser.co.uk/ProductDetail/ ... 68LA%3D%3D
Mfr. No: SR2511F-0304-19R0B-E9-N-W-159

Cheers,
Nick


Wed Jul 19, 2023 3:06 am
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