GGG posted:You did not come up with this buffer. ERR was using it before GRJ
Plus, it was modified with recommendations from Jon Z. He also thought 3904 was a better transistor to use.
Well, Jon did make a recommendation to improve it, but the one that ERR published was quite different and didn't work for me. That's why I came up with this configuration, because it did work for me.
Here's the one that I got from ERR a long time ago, it was for the IR tether as it also draws too much current and attenuates the serial data. This is an inverting configuration, I wanted a non-inverting configuration, hence the emitter follower.
GGG posted:Having said that, I have been running into issues with ERR upgrades and sound lately too. Almost every upgrade has issues to work around. I have a feeling some components on the ERR boards must have been changed. Leaving serial data more susceptible to degradation with RS 4.0.
I remember a couple of those. I first needed my buffer when I tried to use a CC-M and the ERR RailSounds Commander with a standard TMCC motherboard.
