We all have them now and then.
The story can be as simple or as involved as you'd like. It's to test this circuit.
In the World of the High Tech Redneck, the Graybeard is the old guy who earned his gray by making all the mistakes, and tries to keep the young 'uns from repeating them. Silicon Graybeard is my term for an old hardware engineer; a circuit designer. The focus of this blog is on doing things, from radio to home machine shops and making all kinds of things, along with comments from a retired radio engineer running from tech, science or space news to economics; from firearms to world events.
I know the feeling. I'm getting ready to bring up the little guitar amp I'm fixing up, and as always, I did a wire-by-wire check of the chassis vs the schematic.ReplyDelete
Yup.....found the screen supply and plate supply leads to the output stage got swapped.
Easy rework, but caught me by surprise.
But then, that's why I check everything a day or so after I finish it before I power it up the first time.