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  1. HANKMARS

    IR IMAGING DEVICE on the cheap

    I seriously desire to have an IR imaging device to use to observe circuitry when powered up so as to get hints of trouble spots. However, my desire to not spend $1K and up supersedes the former desire. I currently believe that an off the shelf $100 digital camera and the proper filters and a...
  2. HANKMARS

    Video signal amplifier.

    I am attempting to construct a video signal booster using an LM747 dual op amp. My cable is a 4 conductor shielded type. Length is 500 feet wound on 6 inch spool. I receive enough signal to produce a black and white image but prefer to have a color image. The op amp is working good but I seem to...
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