Big Dim Bulb Tester with Variac and Isolation Transformer
16:16
Tech Tips Tuesday, Isolation Transformer and Variac Safety
9:14
Build Your Own Current Limiter for Protection when Repairing and Testing Electronic Equipment
44:06
How An Isolated Dim Bulb Tester Works (Current Limited Isolation Transformer And VARIAC)
3:45
Circuito de control de corriente simple usando 2N3055
13:41
The #1 Mistake You're Making with Dim Bulb Testers - Don't Make It Again!
41:53
Isolation Transformers: Internal Design and Safe Use with Oscilloscopes
9:31
Build This Dim Bulb Current Limiter
31:49