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 Post subject: Canadian Westinghouse Model 275 Capacitor ID
PostPosted: Jun Wed 16, 2021 2:59 am 
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Joined: Nov Mon 30, 2020 4:10 pm
Posts: 33
Location: South Western, Ontario
I have a schematic that is hard to read. If anyone knows what the value of the capacitor labelled C44 on this set, ID appreciate the help. It wasn't legible on the cap either.

Thanks.


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 Post subject: Re: Canadian Westinghouse Model 275 Capacitor ID
PostPosted: Jun Wed 16, 2021 3:16 am 
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Joined: Jan Tue 31, 2012 1:55 am
Posts: 17946
Location: Mountains of Mourne. Ireland.
C44 .035µF (microfarad)


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 Post subject: Re: Canadian Westinghouse Model 275 Capacitor ID
PostPosted: Jun Wed 16, 2021 3:35 am 
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Joined: Jan Tue 16, 2007 7:02 am
Posts: 4670
Location: Lexington, KY USA
It appears that the 275 is very similar to the 175, at least about the tone capacitors.
The value for C44 appears to be 0.035uF. This clearer scan also shows that the nearby ground connects to a shield on one of the wires to the control, not to C44!
No doubt 0.033uF will be close enough. Might be good to use a 1kV or higher part, or a safety agency approved Class X or Y capacitor.
Attachment:
Screenshot from 2021-06-15 22-18-45.png
Screenshot from 2021-06-15 22-18-45.png [ 136.37 KiB | Viewed 338 times ]

https://www.rfcafe.com/references/radio ... y-1936.jpg

Ted

It's interesting that the ARF site provided no warning about Greg's post.
The scan I found of the exact same schematic was not clear enough to be sure of the C44 value.


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 Post subject: Re: Canadian Westinghouse Model 275 Capacitor ID
PostPosted: Jun Wed 16, 2021 11:47 am 
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Joined: Nov Mon 30, 2020 4:10 pm
Posts: 33
Location: South Western, Ontario
Thank you VERY much for the information gentlemen. Much appreciated!


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 Post subject: Re: Canadian Westinghouse Model 275 Capacitor ID
PostPosted: Jun Sat 19, 2021 12:19 pm 
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Joined: Nov Mon 30, 2020 4:10 pm
Posts: 33
Location: South Western, Ontario
I have finished the work on this radio. If you wish, you can see it at:

https://www.youtube.com/watch?v=GjlEr8W1hVA

Thanks again for the help.


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