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Search results

  1. VA3ES

    Had power outage now Astron RS-50A not working right

    On some Astron regulator boards, there is a hole through which you can put a small "diddling" tool or screwdriver. On others, you have to physically remove the board, turn it over and adjust. On those boards, experienced techs usually drill a small hole so they can tweak the pot the next...
  2. VA3ES

    Magnum S9-175

    :headbang:mad: So last week (Sept. 15) I received my package, except H&Y shipped the wrong item!!! I called them immediately, and they shipped out the right item the very next day, Sept. 16. I will now receive the correct item most likely tomorrow. More to follow. (They...
  3. VA3ES

    Had power outage now Astron RS-50A not working right

    Not a problem - the '3772's are heavier duty. Check on the regulator board for a small pot, which will be the voltage adjust. Just trim it for 13.8 VDC, and you're all set. Did you replace the voltage regulator too? That will explain the voltage discrepancy.
  4. VA3ES

    Omega Force S45hp

    I couldn't agree more! Low-drive amps are worthless, unless you're running a very low power radio, and that means no "exports", or 10M radios. High drive amps of any configuration is the way to go, and make sure they're Class AB. I use a couple of 4 X 2879 amps and they will handle up to...
  5. VA3ES

    Magnum OmegaForce S-45 HP Review

    The radio, in it's various configurations, does not cover the 12M band. It starts at 25.165 and goes up to 29.699. It covers the 11M and 10M bands completely. Configuration info attached...
  6. VA3ES

    High SWR only with my 94HP

    This is the typical symptom of a radio that is putting out wide-band trash. I would suggest that the radio has been improperly tuned (aside from the mod limiter being defeated - always a bad idea). Some radios, having been poorly tuned, become sensitive to the reactances in an antenna...
  7. VA3ES

    10m/11m mobile radios

    I would dispute that. I never found that phenomenon. Both radios had FM. Having owned both, I found the performance of both radios very close, if not identical. Though due to tuning, I found the '2600 a bit hotter on 10M. Compromises, mostly cost-based, forced the use of wide filters...
  8. VA3ES

    Had power outage now Astron RS-50A not working right

    Very good point, though I have seen shorted pass transistors that passed the 13.8. So, if the pass transistors show good, next step is replacement of the LM-723. I can't think of any other passive components that would fail under a power glitch. A failed LM-723 is one of the common...
  9. VA3ES

    Had power outage now Astron RS-50A not working right

    Astron's are notorious for certain failure modes. Generally, if your voltage is OK at the output, but you can't get current, it's the pass transistors. Occasionally, a component on the regulator board will fail and produce the same result. Check the pass transistors first. If they are...
  10. VA3ES

    Had power outage now Astron RS-50A not working right

    Check the numbers on those transistors. They're probably either 2N3771, or 2N3772. but check to make sure what you've got. They're probably easy to remove and mounted on sockets. If you know how to check transistors, check to see if they're shorted (or open, but more likely shorted)...
  11. VA3ES

    Had power outage now Astron RS-50A not working right

    Almost sounds like blown pass transistors. Measure the output. If it's around 13.6 VDC or so, then it's your pass transistors which have blown. If they're what I think they are (2N3772), they're relatively cheap to replace.
  12. VA3ES

    Magnum S9-175

    My S9-175 is wending it's way through the USPS system towards me, as I type! :) I expect it the middle of next week.
  13. VA3ES

    10 and 12 m exports

    Most unlicensed export users know enough not to operate on 10M. Some export radios don't operate in the phone portion. An unlicensed operator would stand out like a sore thumb. Having said that, I've worked many new Techs and even experienced hams, who sounded suspect to me but checked...
  14. VA3ES

    President line of radios

    All good and well.... But I prefer my General Grant... :wink:
  15. VA3ES

    BBT Delivered Hy-Gain Penetrator 500 Today

    I haven't yet come across any Japanese disclaimer report in my research. Still reviewing Kraus. Will be reviewing the NAB Handbooks in my possession.
  16. VA3ES

    Is there something I am missing here?

    You might try posting your query in the Amateur Radio Antennas forum. You may get your answer there. I have one of those analyzers. If you post your query there, I would be pleased to answer any questions.
  17. VA3ES

    Texas Star 350 HDV PRE AMP Not Working

    It may continue to fail. The sequencing timing on these amps is terrible.
  18. VA3ES

    weird night for cb contacts

    Yeah, you're lucky to still have morons on the CB. Up here, all the morons and miscreants got their ham tickets and are now infesting 2M. Alternatively, the CB band in Ottawa is clean, friendly, and moron-free. Thus, lately, I'm spending more time on CB.
  19. VA3ES

    Magnum S9-175

    As the "Aflack" goat says, "N-a-a-h-h". Sigh... no... :( not yet. When I last spoke to the dealer, they claimed, "[...]expected week of Sept. 5". So I wait, (drumming fingers). (Aflack is a U.S.-based insurance provider with rather amusing TV commercials ["adverts" to you...