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Old 11th Jun 2021, 11:09 am   #6
Cobaltblue
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Location: Exeter, Devon and Poole, Dorset UK.
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Default Re: Cossor Oscilloscope models numbers required

Quote:
Originally Posted by HamishBoxer View Post
Not certain of the difference but I think I have a 339 as well and will try and take note of external difference which I think there is.

Circuit wise I need to check whether I have both or not.
I thought both my examples (both in need of total restoration) were both 339's but it turns out ones a 339A the only external difference I can see is the CRT phosphor on the 339A is brilliant white, where as on the 339 is sort of a pale grey/green) If you can get to your it would be good to know if you observe the same.

I am not in a position to pull them apart at the moment but maybe later.

Cheers

Mike T
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