Topband: Mother of all ferrite common-mode coaxial chokes

[Tom W8JI]

> I also use phono connectors on some older radios. I'd prefer to substitute 
> BNC connectors but I don't want to modify the equipment.
>
> What I find helpful is to squeeze the shell of the plug so that it will 
> fit tightly on the female receptacle and cover the shell with heat 
> shrinkable tubing so that the pressure is always applied to the 
> connection.

That's exactly what I do periodically when the connectors lose tension. I 
also use CM chokes (beads) near connectors in case they develop a little bit 
of resistance. Overall, I have few problems.

If you want a very reliable connector style for receiving, use a type-F 
cable. Stay away from BNC's and other spring pressure connectors. Not only 
is cable prep fast, and cable readily available, everything is dumbed down 
to suit Larry-the-cable-guy.

73 Tom