Behold, Frank Dresser signalled from keyed 4-1000A filament:


"harry" wrote in message
m...
Hi Folks:
A guy at work bought his old guitar amp to get looked at. The
tech said he needed new tubes. (probably really doesn't). However, I
needed to bring in my 833A and said he needed 2 tubes like this!! He
was hysterical!
The tech and I got talking about BIG glass tubes. I was wondering if
anyone knows of a bigger glass tube than 833a , 852 , 861, 4-1000a etc.
Thanks!
Harry

These are pretty big. They're described as 5 feet tall. They're from
Powel Crosley's 500 kw WLW transmitter:

http://hawkins.pair.com/wlw/wlw3.jpg

This is from:

http://hawkins.pair.com/wlw.shtml

Frank Dresser

http://www.tubecollector.org/rd150yb.htm

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