| My standard answer, and it's a good one:
A late-production Mullard or Amperex (the same tube, made on the same tooling in the UK and the Netherlands, respectively). Perfectly OK to get the same thing with contract label -- EICO, Hammond, Bogen, etc. -- if the production codes match.
Fairly shortplate and used as the V1 in many of the classic bass tube heads. Great tube, unmatched in current production.
__________________
"There's no helping nor educating a fool." -- My percipient grandfather
| 
