[Milsurplus] Transmitter transformers - save or toss ?

[hwhall at compuserve.com]

I would vote for saving them.  There are still people building tube stuff & good power transformers seem to be getting scarce.  Additionally, there's audio people building tube amps that lust for transformers (yeah, maybe we're not all real sympathetic to that niche but they will buy them from you).

WayneWB4OGM
-----Original Message-----
From: Hubert Miller <Kargo_cult at msn.com>
To: tetrode at googlegroups.com <tetrode at googlegroups.com>; milsurplus at mailman.qth.net <milsurplus at mailman.qth.net>; nwvrs at googlegroups.com <nwvrs at googlegroups.com>
Sent: Thu, Nov 1, 2018 1:37 pm
Subject: [Milsurplus] Transmitter transformers - save or toss ?

 &lt;!-- #yiv6564198189 _filtered #yiv6564198189 {font-family:"Cambria Math";panose-1:2 4 5 3 5 4 6 3 2 4;} _filtered #yiv6564198189 {font-family:Calibri;panose-1:2 15 5 2 2 2 4 3 2 4;} #yiv6564198189 #yiv6564198189 p.yiv6564198189MsoNormal, #yiv6564198189 li.yiv6564198189MsoNormal, #yiv6564198189 div.yiv6564198189MsoNormal {margin:0in;margin-bottom:.0001pt;font-size:11.0pt;font-family:"Calibri", sans-serif;} #yiv6564198189 a:link, #yiv6564198189 span.yiv6564198189MsoHyperlink {color:#0563C1;text-decoration:underline;} #yiv6564198189 a:visited, #yiv6564198189 span.yiv6564198189MsoHyperlinkFollowed {color:#954F72;text-decoration:underline;} #yiv6564198189 span.yiv6564198189EmailStyle17 {font-family:"Calibri", sans-serif;} #yiv6564198189 .yiv6564198189MsoChpDefault {font-family:"Calibri", sans-serif;} _filtered #yiv6564198189 {margin:1.0in 1.0in 1.0in 1.0in;} #yiv6564198189 div.yiv6564198189WordSection1 {} --&gt;I want to pose a question to the general vintage radio audience: Are ( some ) high voltage, transmitter type power transformers worth saving, or not really ? What brings this up is, I have a stack of 4 Northern Radio SSB radios from 1970s. These had 2 tubes in final, and the ones I have are AC powered. The main power transformer puts out in SSB service, 700 volts at 400 mA ( that’s what the manual says to tune the linear final for ), 150 volts for tube screens, and 28 volts for the transistor stages. This transformer requires a rectangular cutout, or some kind of standoffs to mount above chassis.  I think the number of people building tube transmitters today is vanishingly small and the number building HV power supplies even lower. I do have other nice HV transformers in my "collection", potted ones with easy chassis flush mount and 500 – 600 volts out with around 150 -200 mA, which are good for many ham transmitters and ham or military mobile radios. Those I will keep for now.  So as I began removing parts from this Northern power supply section, I began to wonder, is this a fool's task ? Maybe I should extract a part or two, like the 12 volt relay and diode units, and chuck the rest ? The transformers are heavy enough that I won't just offer to ship them off for free, as the weight calls for more care in packing, more work. So, thumbs up or thumbs down ?  ( Yes, I do understand the actual Roman reverse-logic meaning of this gesture. ) thanks- Hue  ______________________________________________________________
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