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Antique Radio Technical Forum
L-49B Ballast tube. What are the resistor values inside?

Posted by Warren on 01/15/2010 17:04

Pins 8 & 7 are the 40 ohm section. 50 ohm 10 watt should be fine. Also a L-49BG is the same ballast tube, but is glass. Still think you would be better off to use an AC capacitor from pins 3 & 7 .. Put your dial lamp in series with the last tube heater going to ground. Shunt the lamp with a 47 ohm 1 watt resistor. IPAddress: ***.24.247.210

L-49B Ballast tube. What are the resistor values inside?
Dave Froehlich	01/13/2010 20:42
Warren	01/13/2010 23:32
Dave Froehlich	01/14/2010 17:01
Warren	01/14/2010 19:05
Warren (P/S)	01/14/2010 20:39
Dave Froehlich	01/15/2010 16:31
Warren	01/15/2010 17:04
Dave Froehlich	03/17/2010 15:00
Warren	03/17/2010 15:32
Dave Froehlich	03/17/2010 15:49
Dave Froehlich	03/17/2010 15:50
Dave Froehlich	04/27/2010 15:15
Warren	04/27/2010 16:00
Dave Froehlich	04/27/2010 16:12
Dave Froehlich	04/27/2010 17:03
Warren ( That's cool then )	04/27/2010 19:46
Warren	04/27/2010 17:18
Dave Froehlich	04/27/2010 15:21
Chuck	02/09/2010 02:04

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