They look quite like octal tube socket pins, but have a black plastic bit on the end the wire comes out of. You solder the wires onto the pins, like you would to a tube base type plug.
You can likely use tube base pins, but I don't like connections that are not secure... Brett N2DTS > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Todd Bigelow - PS > Sent: Wednesday, December 31, 2003 12:10 PM > To: [email protected] > Subject: Re: [AMRadio] Thordarson transformer question > > > Brett Gazdzinski wrote: > > >Thordarson used some type of push pins, they came with the iron. > > > >I had a BIG mod transformer, the T-11m78 that had screw terminals, > >I used it in the 30K-1, and it went with it when I sold it. > >I have the same transformer with the push pins, its > >much smaller, has rounded sides, push pins on the side. > >Must have been a change, the older ones having the terminals? > > > > > Okay, this makes sense. Mine is the one with the rounded corners, > wrinkle paint on the end bells. Nice nickel-plated 'acorn' > cap nuts on > the ends. The openings look too small for a banana plug but they > definitely don't looked threaded either. What do these push pins look > like and does anyone have a picture or know of a site that > shows them? I > don't recall seeing anything anywhere here that would work, but they > could be in a parts drawer or box full of 'stuff' and without knowing > what to look for, I could pass them over easily (I have a lot > of 'stuff'). > > >The T-11M78 worked very well in the 30K-1, at 2500 volts. > >Sounded quite good to me. > > > > This one is about the size, maybe a bit larger than the plate > transformer in my 30K-5, the side tag says 300-500 watts. > > >I have not looked at it, but its likely possible to change out > >the push pins, by replacing the entire insulators, or adding > >a screw through each push pin with nuts, lock washers, etc. > > > > Looks like you'd have to pull the entire side panel off and > replace the > insulators as one unit on this one, but I could be wrong. One could > probably stuff large diameter, stiff wire into the holes too, but I'd > like to do it as close to 'right' as possible. > > >I have some of the push pins, but you need quite a few in > >some configurations, my pair of 4D32 transmitter will be low > >impedance, and need to parallel up both the primary and secondary, > >lots of push pins! > > > > Sounds like these pins must have a hollow head, allowing you to stuff > one inside another to double things up? This one has 6 > insulators down > each side, and the holes are maybe 2-3 times the diameter of a pencil > lead. Physically it appears to be the same size as the mod > transformer > for the 300G, with more connections. But I'm assuming that > since the mod > transformer for the 300G was a specific unit (instead of > multi-match), > it required fewer connection points and used studs instead of > push pins. > The opening for those push pins looks wimpy as all hell > compared to the > studs. > > ~ Todd KA1KAQ > > _______________________________________________ > AMRadio mailing list > [email protected] > http://mailman.qth.net/mailman/listinfo/amradio
