B&k 445

[TUD1]

I got yet another B&K tube tester today at the radio club. It's a B&K 465 - one that I've wanted for a long time. Unfortunately, the color adaptors are all busted and it doesn't read right. If I can ever find my contact cleaner, I'll take it apart and clean the controls. I did not get the manual with this - does anybody know what the switch that says "Meter N/S" means?

[jr_tech]

Originally Posted by TUD1

I did not get the manual with this - does anybody know what the switch that says "Meter N/S" means?

It is a meter sensitivity switch... most tubes are tested in the normal (N) position, but some require the sensitive (S) position.

9yp4, 140ab4, 140cb4, 230db4, 230eb4, 230hb4, a2310w, ct468 and 11sp22 require the S position.

jr