It's all to do with the temperature extremes of shipping something and different humidity levels. If somebody used them straight out of the box before allowing them to reach room temp then that might lead to some issues.
We are fine here in the south west of Iceland. He had some ash over the last few days but nothing compared to what they are getting underneath the glacier.
Over the years I've had a few dozen but this would be the third SR-007 for my collection. They are all a bit different though. The plan is to have every Omega version here when the SR-009 arrives, SR-Omega, SR-007 Mk1, SR-007A SZ2 version and SR-007 Mk2 SZ3 version.
I certainly have a lot of fun building the "lesser" amps just because they cost next to nothing. It's also a lot of fun to put discarded parts back to use.
This is a different kind of lava so odds are that it won't disrupt flights to the same extent even though this is a much larger eruption. Check this picture out...
I'm with you there Frank, I see little sense in CCS loading the 6SN7 especially if the goal is to build something cheap. I am itching to build a simple 7F7/7N7 version some day though and cram it in a tiny chassis.
I see nothing wrong with selling the amp since these issues are all known and documented. I wouldn't bother modifying the boards since they are so small. Also the full blown Exstata 2.0 needs extra heatsinks to work properly.
Now the standard reply here would be KGSS but since Headamp is out of boards then it is not an option any more. You could build something truly simple like the Egmont type amps I've been working on. Cost is basically just the transformer and a handful of parts. I especially like the one I built with 6S4A output tubes.
Stax SRM-323S. Crazy I know since I will sell it right away but I need to see just what Stax did to warrant a new model number and I can also teach the noobs how to change the voltage.