0G3
The OG3 (European equivalent 85A2) is an 85 V voltage reference tube with a miniature B7G 7-pin base.
It is used in the 132 and 506, among others.
Pictures
<gallery> Tube OG3 Working.jpg | OG3 inside a 547 <gallery>
The OG3 (European equivalent 85A2) is an 85 V voltage reference tube with a miniature B7G 7-pin base.
It is used in the 132 and 506, among others.
<gallery> Tube OG3 Working.jpg | OG3 inside a 547 <gallery>