Hi
What you have there is known as a cascade buffer amplifier. The common base
stage combined with the common emitter has some well known issues at high
frequencies ( like UHF / microwave). That’s the tradeoff for having really good
isolation at HF and usually at VHF.
Put a sniffer loop near
11:55 AM
To: time-nuts@lists.febo.com
Subject: [time-nuts] RF isolation amplifier question
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 compone
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
