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

Posted by Dave Froehlich on 03/17/2010 15:50

Warren,
I found it. I'll read it and see what I can do.

Dave
:Warren,
: I cannot find what you are talking about on that page. There doesn't seem to be any mention of ballast tubes or their replacement there.
:
:Thanks,
:
:Dave
::Here is a link showing the AC capacitor trick. For your dial lamp, lift the heater ground on the last tube in the series. Add your dial lamp now in series to ground, shunt the lamp with a 47 ohm 1 watt resistor.
::
::http://www.oldradiosrus.com/build.html
::
::Runs cool, slow start, tubes like it and last longer.
::
::IPAddress: ***.81.29.49
:
:IPAddress: ***.246.68.152

IPAddress: ***.246.68.152


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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