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Re: SR2000 initial power up


 
Edited

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From the repair manual.



Walt Cates, WD0GOF
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A majority of acceptance is not proof of correctness.



From: [email protected] <[email protected]> on behalf of W7WRX <clark@...>
Sent: Wednesday, March 27, 2024 11:11 AM
To: [email protected] <[email protected]>
Subject: Re: [HallicraftersRadios] SR2000 initial power up
?
Thank you walt. I will tackle this after work today.

Radio number 2 really runs great!? ?The RX and TX audio is much better sounding on this rig.? I am using a classic EV664. I ran it on SSB low on 80 meters for several hours.? Drift is minimal.? The Dial is the only problem I can find at this point.?

A fellow ham is sending me a NEW Load capacitor for Radio number 1, It is exactly the same cap!? ?He also had a new 8122 tube!!? He is mailing that to me as well.??

Radio number 1 will get a new load cap and then I need to find out why audio is thin.? It passes NO audio below 400hz.? I already tried the shift L15 and 16 over and that did help slightly.? I fear the Xtal filter has shifted?? ?The LSB Xtal aligns to .520 so that should be close enough?? I might try to series a 5pf cap to see if I can kick it up slightly.?

Radio number 1 also drifts UP in frequency.? Slightly up and never stops.? I have to very slightly adjust vfo back down over the course of a few minutes. This goes on for hours.?

Walt can you suggest what to do? Just change all the mica caps in VFO? Or try to change just a few??

Clark

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