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S-38B Power Consumption


 

Hi folks,
I am restoring a Hallicrafters S38-B receiver and want to add an isolation transformer. So that I can select the correct transformer, I need to know the actual current the S38-B draws. I note in a PhotoFact Folder on the first model (the S-38) the current drain is shown 0.245 Amps @ 117V AC. This is cutting it fine with the transformer that I have (30VA), but as there is no BFO tube in the S-38B, I figure there may be less current drain overall. I recognise that the heater chain will still draw 150mA, but there should be a reduction in the DC (B supply) due to one less tube.
?
Would someone please advise the actual current drawn by the S38-B operating with an AC input?
?
Cheers
Ron
VK2IRS

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