To 6V6GT and Those Guys..
Speaking of vacuum tubes... I knew them well...
March 4 1956 just after my 16th birthday I turned on the filaments and then the Plate on the RCA BTA1L 1KW transmitter at WELI New Haven Connecticut at 5:15 AM.
Everything from the 1620 (6J5?) in the RCA microphone preamps to the 833A's finals and modulators was done with Vacuum tubes.
I had done all my paperwork. I had a Social Security Card, and Connecticut Working Papers. I had taken and passed the 3rd, 2nd and 1st class Commercial Radiotelephone license tests down to the old Federal Building in New York City. My job title was Transmitter Engineer.
It was 20 years later that I first sat down at a Model 33 Teletype connected to the Dartmouth College timesharing system and started Fooling With Fortran.
Regards, Terry King
...In The Woods In Vermont
The one who dies with the most Parts LOSES! WHAT DO YOU NEED??