[time-nuts] RF isolation amplifier question

Dana Whitlow k8yumdoober at gmail.com
Sun Oct 14 12:13:28 EDT 2018


Corby,

What frequency(s) is this amplifier passing?  And sinusoidal, squarewave,
or other?

Dana


On Sun, Oct 14, 2018 at 10:57 AM <cdelect at juno.com> wrote:

> Hi,
>
> I removed this amp from the EFOS2 Maser as it was intermittent.
>
> Of course now I can't get it to fail on the bench!
>
> I have fabricated a new PC board to replace it and have the components on
> hand.
>
> Note the 12pfd cap on the collector .
>
> Some notes I have indicate is select at test and that is it a glass
> capacitor.
>
> The as built unit has a johansen 50pf that looks to be an early version
> of surface mount with leads soldered on.
>
> How do I determine what value to install on the new amplifier?
>
> Cheers,
>
> Corby_______________________________________________
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