6SL7GT
Key:
B&W, 500x789 resolution (or slightly less), 8k-22k file size
These are a little rough, but often good enough.
I make no guarantees
16 greyscales, 500x789 resolution (or slightly less),
50k-120k file size
These look great on my monitor. Your monitor may vary
B&W, 2000x3150 resolution (or slightly less),
70k-200k file size
Just right for laser printing
The hi-res images may cause Netscape to crash. If you have this problem,
then configure Netscape to use a different viewer for gif images.
LView is free and works well. Look for it at
Simtel
From the
GE Receiving Tubes manual
The quality of these images is a little dissappointing, but here they are.
1. Description and ratings
2. Operation as resistance coupled amplifier
From the
Sylvania Technical Manual
page 372
page 373
back to tube data menu
30 June 1996
1. Description and ratings
2. Operation as resistance coupled amplifier 
page 372
page 373