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    2sc945aq

    Can someone tell me what type of differences do the different letters designate. 945AQ? 945A? 945LQ? Are they quality control notes? I ordered 945AQ's and got 945A's. I'm replaceing TR-26 in a 8719 Madison, if it's audio grade vs switching grade or something like that, I'll order new ones...
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    MV13YH

    I'm quite sure this has been brought out several times, but it doesn't seem to have its own spot, so here goes. Hopefully someone has figured it out. Has anybody found a good replacement/ source of the mighty MV13yh bias diode, found in lots of popular ssb rigs, one would think they should be...
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    DX 959 UNKNOWN mods

    Well, long story short for now, Been asked to do some work on a friends DX959, mods are simple enough, but I always inspect, run, and document everything I find before I actually do any work. I believe this is a newer MOSFET model, and most of the mods/repairs I'm finding make sense. there are 2...
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    DX959 - Unknown/understood mod

    Well, long story short for now, Been asked to do some work on a friends DX959, mods are simple enough, but I always inspect, run, and document everything I find before I actually do any work. I believe this is a newer MOSFET model, and most of the mods/repairs I'm finding make sense. there are...
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    Ameritron AL-811 amp problem

    I'm pretty new to the forum, as well as tube amps. I have an Ameritron AL-811, it still has the original 811A's, and has worked well till 3 days ago. I feed it with a Yaesu FT-847 and I do use the ALC line to limit the drive to 70W. Heres the problem, I tuned it up on 40m monthes ago and...
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    148f gtl reconstruction

    This is gonna sound off the wall, but here goes. I'm rebuilding a 148f that someone has hacked apart in an attempt to expand the channel range. They CUT out the "ra1" resistor array imediatly next to the pll. Schematic is no help and the parts list lists it as "0.001uf/5p" . Can any body help...
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    Cobra 148f gtl reconstruction

    This is gonna sound off the wall, but here goes. I'm rebuilding a 148f that someone has hacked apart in an attempt to expand the channel range. They CUT out the "ra1" resistor array imediatly next to the pll. Schematic is no help and the parts list lists it as "0.001uf/5p" . Can any body...
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