These tunable YIG filters are going for practically nothing on ebay. While
they only go to 18 GHz they make an excellent filter to follow testing of an
LNA after the mixing process, for noise figure measurements, as an example.
After all it is that noise that makes our time and frequency measuremen
I have several of these, but the electromechanical relay contacts
have become dirty on all of them. Is anyone familiar with
rejuvenating them? Especially the idea of running a fairly high
power RF signal through them and hot switching them to burn off
the oxide.
Rick N6RK
Mike Feher wrote:
> Th
ncy measurement'
Subject: Re: [time-nuts] HP 8445B
I have several of these, but the electromechanical relay contacts
have become dirty on all of them. Is anyone familiar with
rejuvenating them? Especially the idea of running a fairly high
power RF signal through them and hot switching them to burn
