Service and Repair

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

3 V relaxation oscillator (CB8047E)
We found this relaxation oscillator in a 1967 General Electric documentation. The frequency is given...
Frequency Doubler (CB26177E)
This circuit generates a 20 MHz sinusoidal signal from a 10 MHz crystal. It is found in the 1992...
Up to 90 Seconds Unijunction Timer (CB12336E)
This circuit is from a 1967 publication. The potentiometer above 4M7 is the critical component. The...