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14rp4 substitute

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11-23-2017, 10:27 AM

dieseljeep dieseljeep is offline

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Join Date: Jul 2010

Posts: 7,562

Quote:

Originally Posted by timmy

Hmm, I wonder what is so different , it looks the same along with the gun.

The difference is the the heater current and voltage. 8.4 volts@ 450ma.
These tubes were used in RCA's and Westinghouses with 450 heater string, 17DQ6, 17AX4 etc.
A 50 ohm 2 watt resistor in parallel with the 14at heater would work OK.

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