Please suggest preamp tube for Mark IV

[Sir Punk]

I'm sorry but this sounds like a really silly question but I just want to quick advice on a preamp tube for my mark IV. I don't need anything fancy I just want something reliable and cheap. Possibly something under $15. I have some Amazon gift card so I'm hoping to get it on this website.

I see this options http://www.amazon.com/JJ-Electronics-T-12AX7-S-JJ-Electric-Amplifier/dp/B0002M728Y/ref=sr_1_24?s=musical-instruments&ie=UTF8&qid=1401668557&sr=1-24&keywords=12ax7

http://www.amazon.com/Sovtek-12AX7WA-Preamp-Tube/dp/B00135HGH6/ref=sr_1_51?s=musical-instruments&ie=UTF8&qid=1401668593&sr=1-51&keywords=12ax7

http://www.amazon.com/JJ-Electronics-T-12AT7-JJ-Electric-Amplifier/dp/B000UMFQHA/ref=sr_1_7?s=musical-instruments&ie=UTF8&qid=1401668557&sr=1-7&keywords=12ax7

thanks in advance

 

[themisfit138]

Out of them I prefer the Sovtek, they just had a little better sounding gain to me. I also liked the reissue Mullard, but any of them were fine.

 

[swbo101]

This is what I've been using (Mark IV(a)) and have been happy with:

V1 - Tung-Sol (RI)
V2 - JJ
V3 - JJ
V4 - Stock Mesa
V5 - Mullard (RI)