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Recent content by Klondike Mike

  1. K

    RadioShack 13.8v/3A power supply transistor ID/replacement.

    My apologies to you and anyone else following this thread. It was not my intention to make things difficult. I was notified that including outside links in my posts is not acceptable on this site so you can thank the moderators for that. To clarify things, I was most likely going to use the...
  2. K

    RadioShack 13.8v/3A power supply transistor ID/replacement.

    Thanks for the cautionary note. I reviewed my selection and discovered an item descriptor that excludes my initial choice; "the output voltage can not be less than the input voltage". I was planning on 18v in and 13v out. My initial research was incomplete. I wanted something that would do 5A...
  3. K

    RadioShack 13.8v/3A power supply transistor ID/replacement.

    Thanks for the schematic. I have a number of various 13v power supplies that I was evaluating over the weekend. This one was broken. Another was poorly regulated. As mentioned, I did order a 5 pack of 2N3055's to repair this one. I also found this inexpensive module that I probably could use for...
  4. K

    RadioShack 13.8v/3A power supply transistor ID/replacement.

    Woo-Hoo! 2N3055 ordered on eBay. Thanks Brian.
  5. K

    RadioShack 13.8v/3A power supply transistor ID/replacement.

    Can anyone suggest a replacement transistor? This 13.8v power supply (RadioShack) blew up on me many years ago and I have been dragging it around knowing someday I would repair it. Well, this weekend I finally got around to popping the cover on it. Blown fuse, replaced. Checked main electrolytic...
  6. K

    AVCOM PSA-35 Spectrum Analyzer documentation ...

    Does anyone have a documentation on this device? Service manual, user manual? I've got a anomaly showing around the 150Mhz frequency with no input.

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