Vta st-70 bias adjustment

Hi all, I’m a tube newbie and just bought a Latino 70 second hand. To me it sounds fantastic compared to anything else I have owned. I’m sure this is a basic question, but how/where are the measurement points to check bias? Can I access them with out opening the amp?

Mrmky wrote:Hi all, I’m a tube newbie and just bought a Latino 70 second hand. To me it sounds fantastic compared to anything else I have owned. I’m sure this is a basic question, but how/where are the measurement points to check bias? Can I access them with out opening the amp?

Yes, the front octal connectors.
One is marked "Bias set 1.56" , this is one tube on this side, the other is across at pin 5.
Same for the other side.

thank you for the quick response!