Power tube mix on VH4

[slivoid]

Hello !

Is it possible mixing different power tubes on VH4 (for example 2 EL34BHT + 2 EL34SED =C= or 2 EL34 + 2 6550) or does it necessarily a quad ?



Thanks for answers

 

[duesentrieb]

Just one bias pot = quad of tubes matched. Normally same brand/type.

 

[slivoid]

OK, thanks. I ignore VH4 have just one bias pot