The only time which-lead might matter would be usage of a transformer winding to either buck or boost voltage for another transformer or another winding. Then, phase enters into things. Otherwise, nope.
Ed Tanton website: <http://www.n4xy.com/> http://www.n4xy.com All emails <IN> & <OUT> checked by Norton AntiVirus with AutoProtect -------------------------------------------------- Wag more / Bark less -------------------------------------------------- From: [email protected] [mailto:[email protected]] On Behalf Of Larry Sack Sent: Tuesday, January 31, 2012 1:13 PM To: [email protected] Subject: [Drakelist] stoopid question on transformer wiring 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
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