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johnecashflo's Recent Activity

  1. johnecashflo replied to the thread Magnum Sfx-350 bottom plate.

    found the problem for those interested it was/is the silver mica 10 pf cap on the left of the 100 ohm resistor.. tracked down where...

    Mar 22, 2017 at 2:13 AM
  2. johnecashflo replied to the thread Magnum Sfx-350 bottom plate.

    irfp250n ?????

    Mar 21, 2017 at 1:30 PM
  3. johnecashflo has a new avatar.

    Mar 21, 2017 at 1:56 AM
  4. johnecashflo has a new avatar.

    Mar 21, 2017 at 1:51 AM
  5. johnecashflo replied to the thread Magnum Sfx-350 bottom plate.

    I meant to say that it put out less power with the 8 volt ptt on.. if I unhook the 8volt ptt wire the radio will flow full power to the...

    Mar 20, 2017 at 9:50 PM
  6. johnecashflo replied to the thread Magnum Sfx-350 bottom plate.

    thanks for reply..as stated before I pulled and checked all four transistors.. they tested ok..as far as I can tell none of the rf is...

    Mar 20, 2017 at 5:32 PM
  7. johnecashflo posted a new thread.

    Magnum Sfx-350 bottom plate

    I'm a doit yourself electronics novice. (Like to bring stuff back to life and still learning). I am working on a 350 bottom plate that...

    IMG_3357.JPG IMG_3354.JPG IMG_3356.JPG

    Forum: Amplifiers

    Mar 19, 2017 at 3:19 PM