A dead Tek FG503 function generator plug-in inspires a teardown. The culprit? A bad op amp in the power supply.

[The LED Artist] often found a need for a relatively high voltage (100 to 200 Volt) but low current DC power supply, and it turns out that a small HV generator that uses a single AA cell only took … ...

A frequency meter can be connected across the output of the generator either temporarily or permanently. Unlike a microwave oven, it will give you a very accurate frequency reading.

Generators with built-in inverters are some of the best ways to protect your backup power. Smaller devices like universal ...