Quote:
Originally Posted by Tom9589
Any idea why RCA put that 5.1 ohm resistor in the filament circuit of the discriminator tube?
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not a clue, it is also there on the RCA 630ts (which is what my FADA is a clone of ) , but it's
2.2 ohms, and it also feeds the heater of the Horz sinc disc, also a 6AL5