[amsat-bb] SSB-Electronics preamps

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