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  1. M

    This Week on the Breadboard: The Tube Bender Deluxe

    What is this obsession people have with Germanium components? They're noisy, thermally unstable, getting expensive, low gain, and really really NOISY! For real! I've built circuits with both germanium and silicon devices, and with the tiny modifications I sometimes make to the silicon...
  2. M

    X

    For 1V8, you could use an ordinary 3mm red LED. Its forward drop will be almost exactly 1V8! Don't use a "high brightness" or "high efficiency" type - just try an ordinary 3mm red LED.
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