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  1. tba02

    HP DPS-750rb Power Supply

    I have several HP DPS-750rb 750w common slot power supplies for sale. Power cable included. They require you solder a 330 - 1000 ohm resistor to pins 33 and 36 for them to turn on. The details regarding the resistor and voltage adjustment can be found at...
  2. tba02

    FS: ICOM IC-7410

    ICOM IC-7410 Works great, I just have too many radios, It's too nice to have it sit on the shelf. 3 kc filter installed. Includes HM-36 microphone and new ICOM power cable. Serial # 02001458 More pictures at https://sfbay.craigslist.org/eby/ele/d/icom-ic-7410/6551227102.html Listed for $850 on...
  3. tba02

    Yeticom Optima on Ebay

    12/13/2016 http://www.ebay.com/itm/Yeticom-Optima-mk3-10-12-meter-radio-/272478345465?hash=item3f70f998f9:g:vIoAAOSwJ7RYSOua Buy It Now - US $175.00 or Make Offer options. Not my auction. I was just scanning the listings.
  4. tba02

    WWDX Backpack Mobile - 12/10/2016

    I happened to run across one of our own today on 40m running backpack mobile. I couldn't hear him on my low dipole but was able to use a local SDR to make the second half of the contact. I am sure my lack of antenna was the issue as he was 5/9 into Half Moon Bay CA from Southern California. It...
  5. tba02

    SB-200 Tube Replacement Procedure

    I would like to replace the tubes in my SB-200, but I want to make sure I do it safely. I have done the reading and know there are lethal voltages etc., but I have not been able to find walk through anywhere on the internet. The amp has a Harbach PM-200 power supply module installed. It also...
  6. tba02

    Shortened End Fed Calculations Help

    I am working on an end fed (faux half wave) antenna for 75 meters (3.9 MHz is my target frequency). I currently have one of these - http://myantennas.com/wp/product/efhw-8010 which is basically a 7:1 unun - that I want to use for a single band antenna. I have successfully used ~130 feet of wire...
  7. tba02

    2 Rig, 2 Amp, 3 Antenna Patch Panel

    I'm looking to be able to use 2 rigs (one or the other - not both at the same time) using 2 independent RF chains terminating at one of three antennas and a dummy load. I've created a patch panel diagram where I can keep them isolated and change rigs by swapping two patch cables. I'm pretty...
  8. tba02

    For Sale: MFJ-259B Antenna Analyzer

    MFJ-259B Antenna analyzer for sale. Works as it should. Cosmetically in good shape, a few minor scratches on the case here and there - the screen is 100% clean. $200 shipped CONUS
  9. tba02

    For Sale: MFJ-259B Antenna Analyzer

    MFJ-259B Antenna analyzer for sale. Works as it should. Cosmetically in good shape, a few minor scratches on the case here and there - the screen is 100% clean. $200 shipped CONUS
  10. tba02

    WTB: RF Limited CR-577 Microphone

    I'm looking for an RF Limited CR-577 microphone. If you have one in the closet, or happen to know of a seller that has any left please send me a message. Thanks.
  11. tba02

    M400 Starduster Repurposed for 6 Meters

    I wanted to get on 6 meters, both for SSB and for local FM. I had a few items hanging around, did some quick math and decided to repurpose an M400 Starduster for both options. I call it the CloudDuster. Inventory/ Parts List (1) Sirio M400 Starduster Antenna -...
  12. tba02

    WTB: Cobra XL 450 Amp

    I'm looking for a Cobra XL 450 amp (or similar 4 transistor w/good SSB biasing). If you have one kicking around please drop me a line. Thanks, TBA02 Unit 222 San Francisco
  13. tba02

    Neighbor has turned me into an alligator

    Somebody in my neighborhood has turned me into an alligator. When the skip was rolling in it wasn't as big of a deal, but when things are quiet it sure is a PITA. I first noticed it at the beginning of April. I killed all the power to the house and it was till present. After some various testing...
  14. tba02

    Greetings

    Hey all, I realized after lurking a while I was posting to a few threads and never formally said hello. I started in radio back in the heyday of CB but haven't done much in years, though I still remained active and interested in electronics. Since then I have dabbled in MURS, GMRS, and some...