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No need to subscribe. It's a real product now. They are available in the Classified's section of the forum.

Marty, I appreciate the offer. The schematic is finalized and I already generate the needed Gerber files to get them fab'd by a PWB fab house. Have had great results with the house I use. Quick turn times, great quality and reasonable prices. If I can help you with your 831 woes just let me...

Ted - Thank you for the improvement suggestion. :roll: I too noticed the font was a bit small too. I revised the design and incorporated a larger font size for the terminal lettering. Those new PWB's just arrived this weekend. At the same time I ordered all the parts to build the next batch...

Wanted to keep them reasonably priced for fellow SS members trying to get their 831's working.

OK, units are now complete and ready for shipment. See link in signature for classifieds listing to order.

Latest PCB's just received. Populated one and tested it in one of my 831's. Couple of firmware tweeks to do to perfect performace, but looking good!

BobbyT, The latest version is in production at the PCB house now. Planning on being able to ship units in a week or two. BTW - Nice Jeep! I have a YJ on Tons with 43" SX stickies, Love wheeling it!

First spin of the PCB version built. Tested in one of my 831A's. Success. Need to tweek some of the hole sizes and use a different terminal strip before ordering the next batch of PCB's.

Yes, the replacement controller I'm working on will NOT have any pots. The entire assembly, except the terminal strip, will be urethane coated to keep moisture out. There are no need for any pots in this design since the microcontroller constantly reads the PMA frequency and directly controls...

NATCAD.. cool.8) Nice to see there is some interest in this endeavor. Need to get in some more run time on the prototype before committing to ordering the pcb's and parts. 3D model of current PCB design. Pink strip is the terminal strip for the 9 wire connections from the 831A. Silkscreen...

The circuit I used does work using the PWM output of an Arduino. ( My initial breadboard version was Arduino based.) The PWM circuit is quite simple. It uses a TIP120 NPN Darlington Transistor, a 1 K ohm resistor and a couple of general purpose 1N4004 diodes. Be sure to heat sink the TIP120...

Pictures fixed. Chris, I started with the Arduino Uno, then switched to the Arduino Nano for the first breadboard and finally to the ATtiny85 for the prototype shown above. The ATtiny85 has limited I/O but was more than adequate for my application. I use 2 analog inputs and a single PWM output...

MEP-831A SLC100 Governor Controller Having purchased a couple of MEP-831A's I found that the SLC100 Governor Controllers are problem prone. The two Tier 2 Reset units I purchased with just 2 hrs on the clock both randomly exhibited surging issues as well as random WOT issues. Adjustment of...