[moredes]

Quote:

A few words regarding the Mullard CV181 (ECC32): This tube is highly sought-after. BUT, it is NOT a 6SN7. It is an ECC32, which is NOT a drop-in replacement for 6SN7. As mentioned earlier, the current draw for this tube is 50% higher than a 6SN7. This will blow most power transformers over time. And power transformers rarely die alone – they usually take some other parts with them when departing this plane.

I pulled this quote from another forum. Does the advice apply to an MPX3 SLAM? I've been using a Mullard for about 15 hours now.

 

[nikongod]

should be no problem in the MPX3.

FWIW< you should put these threads all together, or in other threads.