Dear community,

thank you to be a part of it here.

I am relatively new to the Shindo brand and own an old Minbrison and new to me a Cortese F2a. At he end, there are playing some Lockwood Major fitted with Tannoy MG 15".

I bought the cortese with some tubes they are not the original equipement. Does anybody know, apart from the Siemens F2a, which tubes should be fitted originally ?

Thanks in advance,

Rüdiger