Thread: Restoration Commences on 1947 RCA Victor 721TCS
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  #13  
Old 06-21-2020, 11:02 PM
old_coot88 old_coot88 is offline
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Quote:
Originally Posted by Tom9589 View Post
Any idea why RCA put that 5.1 ohm resistor in the filament circuit of the discriminator tube?
Discussion of it here - http://www.foundcollection.com/2_81131c0ab8492ebb_1.htm
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