Service and Repair

Articles
Title
The Workbench instruments – The multimeter (ART595E)
Components Recovery (SER003E)
Troubleshooting with the Multimeter (SER002E)
Troubleshooting and Repair (SER001)

LED Display for ASCII Code (CB13762E)
This circuit was found in a 1977 documentation. With it we have the direct indication, through LEDs...
Phase Inverter (CB7500E)
This circuit provides two outputs of the same signal. One with the original phase and the other...
Preselector with JFET (CB9170E)
This circuit was found in a Popular Electronics from the 90s. The circuit uses a general purpose...