Quote:
Originally Posted by Yamamaya42
I did find this old thread, however.
https://www.videokarma.org/showthread.php?t=275826
The bk 440 and 490b are not quite the same, close, but the 490b was the last and latest they made.
And I'm not sure which way you ended up having it hooked up when you tested, timmy, you say you used a 15v source on K & G1?
can you give more detail on how its hooked to the tester plz?
Tks.  |
You have to add 12v to g1 cut the g1 and put the 12v in series and if the needle goes the wrong way then reverse the polarity on the 12 v. Or possibly the cathode can’t remember but if I have to I could check the adapter I made.