Sounds like a BC-610 Plate XFMR to me as well. Choke input filtering and a pair of 866s or 3B28s and you got 2000 or 2500 VDC under load, depending on the primary selection. I was just looking at one this morning. It was lying on the floor of the shack because I'm too lazy to move it to a more permanent storage location. They don't consume all of the space in the bottom of a standard 19" rack cabinet but they don't leave a lot of room for anything else. I always bolt them to the bottom, so the 6 ft. cabinet won't tip over when you pull out the drawers of the other equipment up top. The chassis above is where the 866s go, in front of a viewing window with filament XFMRs, chokes, and oil filled caps behind.
John, WA5BXO ---Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mike Dorworth K4XM Sent: Sunday, June 29, 2003 2:34 PM To: [email protected] Subject: Re: [AMRadio] plate transformer ID question Sure don't know, sounds a lot like the plate transformer from a BC-610 except it would be for 2000 and 2500 volts DC not AC center tapped as you indicate. The size and weight are correct for the BC 610 however. Power wise this is your everyday 2000 watt all day unit or better. That's as wild as I can go! 73, Mike K4XM ----- Original Message ----- From: "Patrick Jankowiak" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Sunday, June 29, 2003 5:08 PM Subject: [AMRadio] plate transformer ID question > List, > > Here is a transformer identification challenge.. > > I have a decent size plate transformer I'd like to identify. Maybe > someone can tell me what big iron it is from. I was told it was from > an old AM transmitter of the 1940's. (unknown tubes, power, etc). I am > trying to determine the power rating. > > input: for nominal 110VAC 60 Hz. > output: 2000 or 2500VCT. > > secondary resistance is 125 ohms. > > The input is on one end of the transformer and has three studs with > nuts, one being common and your choice of the remaining two > determining the output voltage. > > The output is on the other end of the transformer and has three > ceramic insulators, of which one is the center tap. It looks like from > the leads that remain, to have been a full wave center tap scheme. > > The core is unremarkable, but the end bells are thick black iron > castings and have phenolic board in them, to mount the studs and > insulators. If the phenolic boards are unscrewed to peek inside, the > unit is found to be potted with black pitch or tar. > > The end bell for the input has the number (drum roll.....) "52C046" > printed on it. > > The unit weighs 120 lbs and is about 12x11' square overall and 11" > tall. > > Please speculate wildly.. > SGT PJ > _______________________________________________ > AMRadio mailing list > [email protected] > http://mailman.qth.net/mailman/listinfo/amradio > --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.491 / Virus Database: 290 - Release Date: 6/18/03 _______________________________________________ AMRadio mailing list [email protected] http://mailman.qth.net/mailman/listinfo/amradio
