02-10-2013, 09:40 PM
DK, I replaced at ruinous expense two of those tubes that both measured between 8 and 10% on my cheap tube tester with NOS tubes. No real difference in performance. Of course they were "matched" for low emission! Sorry about my previous response if inappropriate Ron. Just felt Mortzh's threshold for excitement was a little low. Sorry Mortzh.
Jerry
Jerry
A friend in need is a pest! Bill Slee ca 1970.