03-08-2011, 03:08 PM
Well the fat pins always like up. The one on the left is always #1 and you count counterclockwise from there . Same applies to more modern 7,8,9,12 pins, some of which are probably extinct.
Of course this is looking at the pins as inserted in a tube socket freom below the chassis, just so you get your bearings. The fat pins are always (so far as I know) the filaments on real old receiving tubes, so you can check that out pretty quickly.
Of course this is looking at the pins as inserted in a tube socket freom below the chassis, just so you get your bearings. The fat pins are always (so far as I know) the filaments on real old receiving tubes, so you can check that out pretty quickly.
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
