Guru
Joined: 05/03/2018
Location: NetherlandsPosts: 5844
| Posted: 11:40am 19 Apr 2025 |
@Mick,
I know this is off-topic, so I leave it with this.
This is what I work towards, use it to your benefit, or not. The 22k optmeters are needed to compensate for the 1% tolerance of the 1 meg resistors. Adjustment procedure I can share when desired, but it can be done with only a DVM (voltmeter).
The circuit is prototyped, and works. It only needs the layout to be finished.
An LCD, a rotary encode, 2 buttons, and a 36V PSU (or 24V transformer, bridge and elcap). The 7805 will be stuffed with a switcher.
Volhout
Edited 2025-04-19 21:41 by Volhout