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  1. SuperLid

    Problem with my Zurich DPS-2512M Power Supply 30amp

    Have a look for MFJ-4035. I believe it is the same unit under a different name. Check this out, the cover is off.
  2. SuperLid

    How to broadband a 5/8 wave

    I personally, think it is a worthwhile compromise.
  3. SuperLid

    How to broadband a 5/8 wave

    The BW is a function of the diameter of the radiator and Q of the matching network. The inherent, narrower BW of the 5/8, results in higher gain lobes at the horizon.
  4. SuperLid

    How to broadband a 5/8 wave

    That idea was used widely in military and marine applications.
  5. SuperLid

    How to broadband a 5/8 wave

    Nothing you can do. If you need more BW, buy a different antenna. You could try soldering a 50 ohm resistor across the feedpoint. That should give you all of the BW you could ever want.
  6. SuperLid

    How to broadband a 5/8 wave

    What is your <2:1 BW now?
  7. SuperLid

    I won a Radioddity QT80!

    same radio, different name.
  8. SuperLid

    ISO oscilloscope

    Cable, I have both analog and digital. Things can be said about one or the other, but when looking at some of the things we do, at times, I prefer the analog. My digital scope was making me nuts last week, I was ready to throw it out the window. Had to get on the analog and I was good. Mine...
  9. SuperLid

    Magnum 2000 resistor repair.

    Pull the device and grab the screw with pliers or needle nose vise grip
  10. SuperLid

    Non SDR Radio...

    Is the FT-991 not hybrid?
  11. SuperLid

    Non SDR Radio...

    Can one still get a Hilberling?
  12. SuperLid

    Icom IC-7410 CTRL board wanted

    You will have more luck on eBay. There are several radio dismantles that sell board level parts.
  13. SuperLid

    ISO oscilloscope

    Why at least 100 MHz O'scopes are cheap these days in the used market.
  14. SuperLid

    ISO oscilloscope

    Why at least 100 MHz?
  15. SuperLid

    Small HF amp

    Winter time, is when the clunkers come out. We have random clunker nights on 16 LSB in my area. Preferably 23 channel SSB radios, but some 40 CH's come on. The activity has dwindled dramatically since Covid lockdown resolved, but a few come around. In the past 2 months, I have dragged out the...
  16. SuperLid

    Small HF amp

    I robbed the final and heatsink, VCO, audio amp chip and crystal filter. I believe it has a bad mixer IC also. I know I stashed the heatsink somewhere and the crystal filter did nt get used and I know where it is. I'd have to come up with a VCO and audio amp chip and bottom cover. Probably not...
  17. SuperLid

    Small HF amp

    Same here, I like when these threads take on new life. It was fun! 73 and Merry Christmas to ALL! SuperLid
  18. SuperLid

    Small HF amp

    I have a 79-892 I used on 10m back in the day. It became a parts donor. I just picked it up and looked at it to see what it needs to operate again. Might not happen...I loved that radio in my car. No amp, Larsen mag mount and I could work JA's from the East Coast, during the cycle peak in the...
  19. SuperLid

    Small HF amp

    Oh, wait, you said 40 CH
  20. SuperLid

    Small HF amp

    What model? I believe the 13-892 is identical to the Hy-Gain 674B