Larry, I see replies, but not a direct answer to your question. From the transformer to the "input" of the voltage doubler circuit it does not make any difference which wire is connected to which "input" point of the voltage doubler.
It is my understanding that technically there is AC voltage potential differences between all the windings which varies based on which wire you measure between. But that stuff is not important in the AC3 or AC4 circuit. It is basically only important to the wire insulation inside the transformer. It becomes interesting if the voltages get much higher, like in a linear amp transformer. That is one reason why many high voltage supplies use voltage doubler circuits. It allows for less voltage "stress" on the transformer wire insulation. Okay, got carried away. 73, Ron WD8SBB --- On Tue, 1/31/12, Larry Sack <[email protected]> wrote: From: Larry Sack <[email protected]> Subject: [Drakelist] stoopid question on transformer wiring To: "[email protected]" <[email protected]> Date: Tuesday, January 31, 2012, 1:12 PM OK, I've rebuilt my AC-3 and I've studied the schematics and read past posts but still have a basic question. Are each pair of transformer leads are interchangeable? Meaning does it matter which red lead goes where? Or blue, yellow, black? I understand it's AC in and out of the transformer and the schematic shows each pair going through a half-wave rectifier chopping into DC and the ripple being smoothed by the caps. But, will I be inverting the voltage by getting the wrong lead much like the bias's blue leads? The green leads must be supplying AC directly to the radio. How can I tell which is which if there's no reference voltage? I'm all done with the AC-3 rebuild with Mike Bryce's AC-4R unit. Much thanks to N2FFL for posting his info on using the AC-4R kit on the AC-3. Now on to renewing some components on my TR-4. Larry, N8QNM -----Inline Attachment Follows----- _______________________________________________ Drakelist mailing list [email protected] http://mailman.zerobeat.net/mailman/listinfo/drakelist
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