[VHFcontesting] Tohtsu CZX3500 Relays F.S.

Bill Olson callbill at hotmail.com
Thu May 29 11:14:30 EDT 2025


Hi all, I sent the message below to the reflector but the images made it too big. I can send pics if you want.

Bill - K1DY

Hi all, I have 2 brand new Tohtsu CZX3500 type N relays with 12 volt coils. These are useable to 4gHz and the manufacturer says they will handle nearly a kilowatt at 432MHz with great isolation and low VSWR and insertion loss. These relays were used in the original Lunar-Link VHF amplifiers. Those amps ran the legal limit, so the numbers on the data sheet below are conservative!

Here's a link to the full Tohtsu datasheet: CZX-3500<http://www.tohtsu.com/shouhin.holder/CZX-3500.html>

RF Parts and Henry radio get $180 for these. I'd like $120 each, plus shipping. Preferred pay by PP friends and family.

bill, K1DY




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