Just make sure it's a 6BK4C/6EL4A - the only certified non-xray generating version of the 6BK4. All others (base, A and B suffix) were part of the Xray scare in the late 60s. The 6BK4C was created to fix that problem, and interestingly enough, was invented by a woman....
http://www.freepatentsonline.com/3590308.pdf
http://www.videokarma.org/showpost.p...7&postcount=16
Cheers,
__________________
Brian
USN RET (Avionics / Cal)
CET- Consumer Repair and Avionics ('88)
"Capacitor Cosmetologist since '79"
When fuses go to work, they quit!
Last edited by Findm-Keepm; 10-08-2015 at 09:03 PM.
|