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Pop goes the tube...
Radioroslyn
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Posts: 7,286
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#5

04-26-2015, 07:01 PM
Well two things come to mind. Use a bucking transformer to lower the line voltage a bit like 12v or so. And be sure to use the proper dial lamp #47. It's a 150ma bulb that match the current of the heater string. A #44 will work but it's a 250ma bulb. May tend to imbalance the heater string at the rectifier tube.
Time for Jack Benny for WNAR via the web.

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Messages In This Thread
Pop goes the tube... - by Paul Philco322 - 04-26-2015, 11:47 AM
RE: Pop goes the tube... - by morzh - 04-26-2015, 12:43 PM
RE: Pop goes the tube... - by Radioroslyn - 04-26-2015, 06:28 PM
RE: Pop goes the tube... - by Paul Philco322 - 04-26-2015, 06:48 PM
RE: Pop goes the tube... - by Radioroslyn - 04-26-2015, 07:01 PM
RE: Pop goes the tube... - by Arran - 04-26-2015, 10:57 PM
RE: Pop goes the tube... - by David - 04-29-2015, 09:20 PM
RE: Pop goes the tube... - by codefox1 - 05-06-2015, 06:36 AM



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  1. The PHILCO Phorum
  2. Various and Sundry Categories
  3. Test Equipment