Service and Repair

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

Crystal oscillator (CB9504E)
This circuit was found in a 90s Popular Electronics. It can generate signals from 3 to 10 MHz....
Adjustable Notch Filter (CB14918E)
This circuit was found in an old Poptronics. Operational amplifiers can be replaced with...
792 or 592 Preamplifier (CB25470E)
We found this circuit in a Radio Electronics magazine from June 1992. The circuit has a power...