Adapter

I want to build an adapter and I already have three circuit diagrams from Reiner's website. Which one is the latest? Which one should I build? Despite discussions in the forum, the R3 value has not been changed.

Hi.

Sorry, but you've entered a kind of development phase with a field trial conducted by forum participants.

Version 2.0 is the most reliable option.

The issue with R3 should be resolved by replacing the diode D6; however, as a precaution, you can also use 1.8k or 1.5k resistors - although this will put a slightly higher load on the PC, but not critically, meaning it's unlikely to cause any imminent failures.