vtvm – WindowsTechs.com

In Praise of Old Meters

Posted on January 12, 2024 by Al Williams

We are spoiled with multimeters today. Even the cheapest meter you will get these days is almost surely digital with a tremendous input impedance. But a few decades ago, meters …read more Continue reading In Praise of Old Meters→

Heathkit IM-13 VTVM Repair

Posted on November 7, 2021 by Al Williams

If you are under a certain age, you might not know the initialism VTVM. It stands for vacuum tube voltmeter. At first glance, you might just think that was shorthand …read more Continue reading Heathkit IM-13 VTVM Repair→