Solid State Guitar Amp Forum | DIY Guitar Amplifiers

I present to you my ghetto redneck ridiculously ugly and heavy variac

So yeah 3/4 inch plywood isn't always a good thing  :lmao:

Also a quick note...if you need a hole saw to insert an object that is two inches in diameter...don't use a two inch hole saw  :loco

Also....solid core wire seems all primo and all but it's a pain  :grr  :-X

Oh yeah also if you are using scraps of wire that are different colors it makes everything more interesting.
 
And....if you can buy a variac with gauges and outlet and switch etc it's probably cheaper and ergonomically compact and easier on the eyes  xP
Anyhow here it is running a box fan and old lamp with two bulbs

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And the inside
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I started with an ancient object called an Adjust-A-Volt and could not find anywhere on the web old forums anywhere the pinout save for one pic and thread so I tried it and it worked

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After all this I don't really have a need for it except I do want some bonding posts only so I can use it for the experiments in my book like when I need five volts ac or something for a breadboard.

One weird thing trying to be cautious for some reason I took a voltage measurement on the three mounting bolts and too my horror got like 27v ac  :lmao: so after yet more world wide web forum etc I connected it to ground with a resistor then measured voltage across the resistor which was basically zero.

So...could be I'm measuring stuff wrong  :grr  :loco or there is a phenomenon called stray voltage ⚡  8|

 

Fyi it does not have chassis ground the green wire is not connected to anything maybe it should be attached to one of the three variac mounting bolts ? :-\