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5 members, 58 messages, 1 photo added in the last 7 days
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  • Re: sb-634 bayonnet lamp type?

    The original bulb type is Heath #412-16. #49, 2V, 60mA, Incandescent Pilot Lamp. Test / Replace: Q218. 73 Santos ... From: randybest@... [heathkit] To:

    zessilva@ymail.com 6 hours ago
  • sb-634 bayonnet lamp type?

    I bought a nice SB-634 at the Scottsdale hamster fest. It's like new and well built. Of course it doesn't work. The seconds digits were dark. I replaced with

    randy_best 10 hours ago
  • Re: SB-401 First Time Power-up Issue

    Aaron, The diode used in the SB-400 REL PWR circuit which is the same REL PWR circuit as in the SB-401, is identified only as a crystal diode but with color

    w5rkl 1 day ago
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