Audio Horizons TP 2.0 Preamplifier

Thats weird for sure Sherod. I m sure you checked both of those switches for continuity with a meter strange that the new switch was bad. I can understand yours going bad with all of the use it has. I would unplug the unit and use the ohms setting on a meter to see where the problem lies.

I was being conservative on those hours and this time with the nos ccas i m marking the time in a log.

Switch problem solved. Apparently a cold solder joint on the board. Now back to some great music. (o:

Glad your back in music again Sherod the cold solder joint strikes again. Was a common problem with Westinghouse Elevator controllers the old relay type every connection was soldered a real nightmare for troubleshooting.

Those early 60s CCAs sound great in our favorite line stage but for a lot lower price the cryoed 6h23s are a bargain. You get most of what the CCA delivers not quite the micro detail but most all else. Looking at them its hard to tell the difference in them and a Siemans E88CC tube. Our Russian friends seem to have coped that fine Siemans tube.

Gammajo,
Got any new impressions on your upgraded pre now that some hours are on it?

I was away last week so very few hours on the unit. Will post again in a few weeks when it is broken in more fully