Voltages of "A" and "B" batteries

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Voltages of "A" and "B" batteries

Arran
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City: Sandwick, BC, CA

03-11-2017, 07:27 PM

It looks like a three way portable, that would explain why the tubes filaments are arranged in series. On older portables they would often switch the filaments between series and parallel arrangements so you could run the set off of a more normal 1.5 volt "A" battery, but by the 1950s they didn't bother with that as much.
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Arran

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Messages In This Thread

Voltages of "A" and "B" batteries - by Dan_in_WA - 03-11-2017, 05:11 PM

RE: Voltages of "A" and "B" batteries - by Radioroslyn - 03-11-2017, 06:33 PM

RE: Voltages of "A" and "B" batteries - by Arran - 03-11-2017, 07:27 PM

RE: Voltages of "A" and "B" batteries - by Dan_in_WA - 03-12-2017, 04:34 AM

RE: Voltages of "A" and "B" batteries - by Radioroslyn - 03-12-2017, 03:33 PM

RE: Voltages of "A" and "B" batteries - by Arran - 03-13-2017, 12:40 AM

RE: Voltages of "A" and "B" batteries - by Radioroslyn - 03-12-2017, 08:07 PM

RE: Voltages of "A" and "B" batteries - by Dennis Craft - 03-23-2017, 11:14 AM

RE: Voltages of "A" and "B" batteries - by David - 03-13-2017, 06:30 PM

RE: Voltages of "A" and "B" batteries - by Dan_in_WA - 03-14-2017, 11:53 PM

RE: Voltages of "A" and "B" batteries - by Radioroslyn - 03-15-2017, 04:38 AM

RE: Voltages of "A" and "B" batteries - by Dan_in_WA - 03-23-2017, 01:34 AM

Food for thought on your caps - by K7Sparky - 03-23-2017, 07:57 AM

RE: Voltages of "A" and "B" batteries - by Dan_in_WA - 04-01-2017, 02:37 AM

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