I've just hooked up my new 2m Preamp that I purchased from my local HRO. They are metric 73mm from end to end.

I did not use my U-Bolts, I simply drilled one hole for each 2m / 70cm on my Glen Martin mini-tripod. Need to keep them for the just in case I ever get a real super tower :)

Rafael / NN3RP

Message: 6 Date: Tue, 16 Jun 2020 15:37:57 -0400 From: "Joseph Trombino, Jr" w2kj@bellsouth.net To: amsat-bb@amsat.org Subject: [amsat-bb] SSB-Electronics preamps Message-ID: 479C7003-C5FB-45F2-B5F4-AF646ED0183B@bellsouth.net Content-Type: text/plain; charset=utf-8

Howdy Gang.

Putting my meager satellite station together and have just purchased two ?pre-owned? SSB preamps for 2M/70CM.

Needing two U-bolts to secure the preamps to the mast I went in search of such U-bolts in a large hardware store today.

Close but no cigar?I has suspected that the needed U-bolts were probably metric since the preamps came from Germany.

Can some kind sole point me in the right direction to order two of these U-bolts?

Does anyone have the correct size I can reference in placing an order?

Does anyone have two on hand (even used ones) that they can spare for a reasonable price?

Many thanks for any assistance.

73, Joe W2KJ