[GreenKeys] Fwd: Jack (K2TTY/K0TTY) Hart's Motor Control Board

[Jeffrey Angus]

-------- Forwarded Message --------
Subject: 	[GreenKeys] Jack (K2TTY/K0TTY) Hart's Motor Control Board
Date: 	Tue, 8 Dec 2020 18:18:00 -0500
From: 	Steve Garrison <steve.n4tty at gmail.com>
Reply-To: 	N4TTY at ARRL.NET
To: 	Greenkeys <greenkeys at mailman.qth.net>



How many of you have used this board?� I�ve used a few of them, but none 
of them are readily accessible at the moment and I have a question about 
the schematic.� I thought I still had a bare circuit board around here, 
but I can�t seem to locate it.

If I could find the bare board I could try to resolve an issue with what 
I�m seeing on his schematic. I�ve attached his schematic and wondering 
if some of you could put your thinking caps on and help me figure out if 
what is on the schematic is correct or wrong.� It has to do with the 
opto-isolator (H11D1) pins 4, 5, & 6 and how they are connected.� It 
just looks wrong to me.� Trying to see if it is just a mistake on the 
schematic, but the board itself must be right as I have several buried 
in working installations.

Steve G./N4TTY


-- 
"I am a river to my people."
Jeff-1.0
WA6FWI
www.foxsmercantile.com

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