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Thread: Only on contest weekend

  1. #1
    Administrator N8YX's Avatar
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    Angry Only on contest weekend

    Late last evening I flipped one of my R-5000s on and set it up to monitor one of the local PD frequencies. About 5 minutes after power-up I hear this really loud 'buuzzzzz' which broke the squelch. No biggie, right? It's powered by a 70A Astron - as is every other piece of 12v capable equipment in the shack, and they're all operating normally.

    Turned it off this morning, turned it back on to monitor some HF traffic...and have almost NO audio output. HF signals are practically nonexistent and the VHF stuff is way down in strength. Whatever it is affects the IF and possibly the PLL boards, as those are 'common' to both HF and VHF signal paths. I'm beginning to suspect a blown electrolytic or two.

    Repairing stuff is fun, but not when you have to... :-?
    "Everyone wants to be an AM Gangsta until it's time to start doing AM Gangsta shit."

  2. #2
    Administrator N8YX's Avatar
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    From the 'Shoulda NEVER worked!" department:

    Problem with the R5000 was a no- (not just a cold) solder joint on a leg of one of the interstage IF transformers. How the rig managed to function for the 20+ years it has is a total mystery.
    "Everyone wants to be an AM Gangsta until it's time to start doing AM Gangsta shit."

  3. #3
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    Wow. Nice find.

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  5. #5
    Pope Carlo l NQ6U's Avatar
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    I thought the R-5000 was a general coverage SW receiver that topped out at 30MHz. Am I thinking of something other than what you have?
    All the world’s a stage, but obviously the play is unrehearsed and everybody is ad-libbing his lines. Maybe that’s why it’s hard to tell if we’re living in a tragedy or a farce.

  6. #6
    Administrator N8YX's Avatar
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    Quote Originally Posted by KJ6BSO View Post
    I thought the R-5000 was a general coverage SW receiver that topped out at 30MHz. Am I thinking of something other than what you have?
    Put the (unobtanium) VC-20 VHF converter in and it'll also receive 118-174MHz.
    "Everyone wants to be an AM Gangsta until it's time to start doing AM Gangsta shit."

  7. #7
    Pope Carlo l NQ6U's Avatar
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    Quote Originally Posted by N8YX View Post
    Put the (unobtanium) VC-20 VHF converter in and it'll also receive 118-174MHz.
    RR, thanks. I looked that up last night after I posted, in fact.
    All the world’s a stage, but obviously the play is unrehearsed and everybody is ad-libbing his lines. Maybe that’s why it’s hard to tell if we’re living in a tragedy or a farce.

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