#1
I am looking to get a replacement for my 12AX7 tube in my blackheart killer ant to get more clean headroom. I have read good things about Jan Philips 5751.....
would I swap the V1 or V2?
Anyone have expereance with this tube?

And most important....where can I buy one? I was hoping amazon would carry it but not as of right now.

They do carry a Sovtek 5751 but I read a review that recommended using a Jan Philips 5751.
#2
It should cut down on some of the gain, not sure how much clean headroom your gonna get out of it. You should have a 12AU7 in V2 I'm assuming, some NOS 12AU7 might give some slightly higher clean headroom. Another option is to get a beefier output transformer to get a better low end and more headroom period. 1 watt amps tend to have too much gain rather than too little in my opinion, example being the hughes and kettner cream machine (not useful beyond 50% preamp gain).
Gear:
Modded Steinberger Spirit (white) (SD-AH/EMG Select)
Modded Steinberger GP-2R (white) (EMG81/60)
Peavey XXL head
Hughes and Kettner Cream Machine
Hughes and Kettner Blues Master
#3
Quote by CephalidHunter
It should cut down on some of the gain, not sure how much clean headroom your gonna get out of it. You should have a 12AU7 in V2 I'm assuming, some NOS 12AU7 might give some slightly higher clean headroom. Another option is to get a beefier output transformer to get a better low end and more headroom period. 1 watt amps tend to have too much gain rather than too little in my opinion, example being the hughes and kettner cream machine (not useful beyond 50% preamp gain).



my amp acutally has two 12AX7's
#4
I have a Killer Ant.

I also have JAN Phillips 5751 (but not in the Blackheart).

The 5751 is pretty close to a 12AX7. I'd consider a 12AT7 or 12AU7 as mentioned.

Sovtek is cheap
JAN Phillips is NOS (New Old Stock Military Spec)

www.dougstubes.com
#6
it had been a while since I was trying different tubes...pulled the head apart and found I had a EH 12AY7 in V1 and JJ ECC83S in V2.
I swaped them and put the JJ in V1 and....much cleaner headroom.
I may try a 5751 in V1