Behold, The Eternal Squire signalled from keyed 4-1000A filament:


8552: damfino!

8552 = 12V filament 6146B

http://hereford.ampr.org/cgi-bin/tube?tube=8552

So, use the 6SL7 for a driver ;-)

--
Gregg
*It's probably useful, even if it can't be SPICE'd*
http://geek.scorpiorising.ca