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Old 7th June 2005, 03:57 PM   #1
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Default Using rectifier tubes in parallell

Let us say that I have a circuit that needs 120mA. My rectifier tube can handle max. 100mA.

Is it possible to use eg. two 5AR in parallell for twice as much current?
How should they be wired up?
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Old 7th June 2005, 05:10 PM   #2
SY is offline SY  United States
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Yes, you can parallel them if you're careful about the cathode connection. There's conflicting advice from reliable sources about whether it's better to parallel a pair of plates in one tube or to pair plates from the two different tubes- that means both connection possibilities will work fine.
"You tell me whar a man gits his corn pone, en I'll tell you what his 'pinions is."
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Old 7th June 2005, 07:27 PM   #3
SHiFTY is offline SHiFTY  New Zealand
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5AR4 (GZ34) should handle up to 250mA... 100mA is not even stressing it!

More info please!
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Old 8th June 2005, 06:43 AM   #4
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The 5AR4 was just an example. It was a general question. I could have been any rectifier.
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