Samhar... that's some pretty impressive knowledge you are sporting there! How do you know that?
Mullard Tube Code Help
Hey guys! Could someone please help me identify the following Mullard Tube Codes. These always really confuse me. Thanks so much for your help!!!
"F33 B8K3"
"F31 B91"
"F33 B8K3"
"F31 B91"