Is transconductance the only thing Tube Depot tests for? Head over to the RAM Labs site, and see all the data they supply with their tubes.
Tube test numbers - what exactly do they mean
I recently sent 2 pairs of 845 tubes to Tube Depot for testing, just to see if they were still good. They sounded ok, but one pair was 10 years old and one about 4-5. They both came back marked 70/200. What does that mean exactly? Another pair of 845s I had were marked 130 on the box. I'm sure you guys must know.
Thanks.
Thanks.