Audio Horizons TP 2.0 Preamplifier

Has anyone tried Siemens E188CC in positions 2 and 4?

Ken,

Haven't tried the Siemens E188CC's in positions 2 and 4 but currently am trying some Russian made Voskhod 6n23p grey plates from 1975. There are many variations of this tube but these are reputed to be the best. They are relatively inexpensive especially when compared to a CCa but comparable or even better in some aspects IMO.

Send me a PM and I can provide the email of my source.

Tom

Tom, thanks for your kind offer but I will pass. I have tried a zillion tubes here including some of the top-rated Russians. None even come close to the E188CC. You should try a pair if you can.

I will have to put them on my short list. Are they grey plates from the 50-60s era?

Scifi,

There are 2 kinds. You want the A-frame version only. There is a current listing on Ebay. If you Google Ebay Siemens E188CC A-frame the first item is what you are looking for.