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Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

oscillscope

  1. K

    Old analog two channel, 20MHz oscilloscope - Problem seems to affect both channels

    Hi I got this analog, 2 channel 20 MHz, very old oscilloscope. Problem is that Variable knob(sometimes called CAL on Tektronix) affects the vertical position of the signal beam. I demonstrate it in the video Any ideas where to start looking ? Here is the schematic for this oscilloscope ...
  2. G

    Lm3914 and a couple of 4014s

    It's not practical I know, but I thought it would be fun. A 200 LED oscilloscope as a good soldering project for low speed, simple projects etc, ie: 555 projects. Easy I thought, use the LM3914 to drive the ten vertical 10 LEDS while the two 4017s to handle the twenty horizontal LEDS in a 10x20...

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