Okay - I see that in the parts list now. It isn't shown on the pictorial diagram and I don't see it on at least one of the boards I have either. It's listed as "NOMINAL, INSTALLED, TEST SELECTED" so, perhaps, it wasn't needed on all the boards.
Thanks,
Barry - N4BUQ
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----- Original Message -----
From: "mc1648pp" <mc1648pp@...>
To: "tekscopes" <[email protected]>
Sent: Tuesday, November 2, 2021 7:41:45 AM
Subject: Re: [TekScopes] 7B53A Schematic Question
it is a ferrite core which prevents high frequency oscillations, I believe.
G?ran
