Conrad Johnson dedicated fansite


If anybody is interested there is a new fansite dedicated solely to Conrad Johnson Onwers. You can find it at http://www.conradjohnsonowners.com. Or just google "Conrad Johnson Owners". It's basically a forum discussion site except it's the only one to my knowledge that is exclusive to Conrad Johnson owners Hope this helps.
invenio78

Showing 1 response by rayooo

Bogeybuster49

I've owned ET3, ET5 and GAT preamps. They all use the identical front panel logic/control board. (I've changed firmware in them, so I can confirm this first hand)

The units are susceptible to static electricity, but no more than any other device, and as far as voltage fluctuations, well again, they are no more susceptible than any other device micro-controller controlled device. There's nothing special in there. They are also susceptible to remote codes from other devices causing the CJ to get a bit flaky

I've never experienced the Christmas-Tree on any of the 3 preamps.I have zapped them or one way or the other caused them to stop functioning properly. Worst case took a power removal to cure and all was fine after.

The control board takes about 2 minutes to change out, so, it could be confirmed instantly if it's at fault. It would not be impossible in any way for there to be an intermittent solder connection or such on the control board that could cause an intermittent "Xmas Tree".