Preamp Tonekit 12AX7 (4)
This is a the "4 12AX7" version of the Doug's Tubes preamp tube cocktail kit and we've received great feedback on it. The tonekit allows hi-fi and guitarists alike to experiment and "tube-roll" preamp tubes in different slots of their amp. Currently we're recommending the following :
V1 - Mullard CV4004
V2 - Ruby 12AX7AC5 HG
V3 - Ruby 12AX7ACZ HG
V4 - Psvane ECC83