Questions about tubes and gear that glows. FAQ
In Reply to: 6l6 pin 1 shield connection posted by DAK on May 23, 2017 at 15:05:52:
Pin 1 of metal envelope Octal tubes connects to the metal envelope. Connect pin 1 of the socket to chassis. The metal envelope is the shield!
BTW, quite a few glass envelope Octals that have a metal ring on the base (for instance KT88) connect the ring to pin 1. Unless, like the 6SN7, pin 1 of an Octal is explicitly connected to an active electrode, tying pin 1 of the socket to the chassis is (IMO) a very reasonable action.
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Topic - 6l6 pin 1 shield connection - DAK 15:05:52 05/23/17 (3)