{Collins} 516F-2 Replacement Choke Source

["Robert Jefferis" <jefferis@xxxxxxxxxxxxx>]

Greetings,

 

Recently, I was prompted to nose around for a solid replacement source. Here is the short story, leaving Heyboer and the P.W. Dahl successor out of the discussion ( I have no complaints or comments on them). New to me was the fact that Freed Transformer became part of Electronic Transformer Corporation (ETC), Paterson NJ, about 15 years ago. ETC has all of the original Freed designs and produces them to order. With respect to the 516F-2, they told me that the original Freed part number 37256, Collins P/N 668-0300-00 (NSN 5950-00-083-1622) is in their archive and is easily produced again – just send money. Just for grins, I asked for a quote on 10 pieces. They came back with $180 per unit, 3-4 weeks ARO. Before you choke, this is for the whole enchilada, the “dual reactor” assembly consisting of L1 AND L2 preassembled with all new stack hardware, built and tested to original specs, just like they used to sell it to Collins and the Federal Government.

 

They did tell me that the breakdown voltage test requirement, or dielectric breakdown strength test potential used was 60 Hz @ 3000 VRMS, yes, RMS. The normal mode, or induced test potential was 400 VRMS, 200 Hz.

 

I did not inquire about smaller or larger quantities, or separate pieces, i.e., just L1 or L2. I am just wondering if there might be interest in a cooperative purchase? Cheers.

 

Bob, KF6BC