| Subject: | [GreenKeys] Jack (K2TTY/K0TTY) Hart's Motor Control Board |
|---|---|
| Date: | Tue, 8 Dec 2020 18:18:00 -0500 |
| From: | Steve Garrison <[email protected]> |
| Reply-To: | [email protected] |
| To: | Greenkeys <[email protected]> |
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
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-- "I am a river to my people." Jeff-1.0 WA6FWI www.foxsmercantile.com