NOS Blackburn Mullard 12AU7 as a PI in 100 watt Marshalls

Chester Nimitz

Chester Nimitz

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Hey Dave i recently had old Mullard 12AU7's that i put in my 100 Marshalls in the Phase Inverter slots.

Are there any Pro's & Con's that i need to be aware of ?

Thanks ...
 
Every time I try a lower gain tube in an amp meant for 12ax7's it never has enough gain. I stopped bothering with it years ago in any slot.
 
glip22":3vff3fg0 said:
Every time I try a lower gain tube in an amp meant for 12ax7's it never has enough gain. I stopped bothering with it years ago in any slot.
Click to expand...
+1] yep you're right. The 5751 wern't cutting it either. Put some NOS Blackburn Mullards back in the PI and Voila' ..... proper. :thumbsup:

So much for lower gain.
 
Chester Nimitz":1lu12ikh said:
glip22":1lu12ikh said:
Every time I try a lower gain tube in an amp meant for 12ax7's it never has enough gain. I stopped bothering with it years ago in any slot.
Click to expand...
+1] yep you're right. The 5751 wern't cutting it either. Put some NOS Blackburn Mullards back in the PI and Voila' ..... proper. :thumbsup:

So much for lower gain.
Click to expand...
Good for cleaner or lower gain tones. But if you want that get a different amp :LOL: :LOL:
 
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