tube upgrade for first sound

Artg & Audiofankj -
Thanks for the support. Making the decision was the hardest part of all. I just didn't want to make a mistake. I sure I didn't. :-) Still waiting for the bass to break loose. I't only been 4+ days though. :-)
So the breakin continues for a month? Is that 24/7 playing all the way? Thanks guys.

paul

One of the OA2's in my FS went out, so when I ordered replacements from New Sensor yesterday, I also ordered a pair of the EH Gold Pin 6922, which Emmanuel suggested I try. Not NOS and less than $30. I forget if this tube has been discussed here. Has anyone tried it?

By the way, the only reason I knew that the OA2 went out is that I happened to peak through the side vents and did not see the blue glow on one side. Of course, it *seemed* like things weren't sounding quite right, but the preamp definitely still worked even without the functioning regulator tube.

Drubin, I went to the New Sensor website to order a pair of 0A2 tubes
only to find they have a minimum order of $75? Is this your experience
with New Sensor?

I asked emmanuel about "upgraded" OA2 tubes. He kind of poo poo'd the idea. apparently its a binary thing: it works or it's out, without any real difference in the sound of different OA's. Dan makes a good point, however, need to periodically look into that puppy to make sure the OA2's are on (easier at night), they have a cool blue glow.

Yeah, the $75 minimum was a shocker. So I ordered two sets of OA2's (in case I keep the First Sound forever) plus the EH 6922's and thereby met the minimum. But there must be another source for OA2's, and Music Direct sells the EH tubes for less than New Sensor does. I just wanted to get it over with. Emmanuel recommended the Russian OA2's that New Sensor sells on the basis of reliability (not sonics) vs. other OA2's.