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It's the stuff under the chassis deck that indicates which transformer an RF deck will need.

The pc board in the center underneath may have a rectangular epoxy block rectifier called a bridge. That one requires the 560-Volt version of the transformer.

If the center pc board has four individual 2-legged rectifier diodes, this is a full-wave doubler circuit. It requires the lower 280-Volt transformer version.

But the transformers have absolutely *NO* markings that indicate which one you have.

But pics of the RF deck's top side don't directly reveal this power supply detail.

And as you can see, the "white" face doesn't even tell you which relay setup is inside.

73

[QUOTE="nomadradio, post: 616727, member: 22"] It's the stuff under the chassis deck that indicates which transformer an RF deck will need. The pc board in the center underneath may have a rectangular epoxy block rectifier called a bridge. That one requires the 560-Volt version of the transformer. If the center pc board has four individual 2-legged rectifier diodes, this is a full-wave doubler circuit. It requires the lower 280-Volt transformer version. But the transformers have absolutely *NO* markings that indicate which one you have. But pics of the RF deck's top side don't directly reveal this power supply detail. And as you can see, the "white" face doesn't even tell you which relay setup is inside. 73 [/QUOTE]

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