Electro Harmonix replacement tubes kit for the Blackstar HT Series One 100. High gain set. 2x 12AX7 EH, 1x 12AX7 EH Balanced, 1x 12AU7 EH, 4x EL34 EH Platinum Matched.
JJ replacement tubes kit for the Blackstar HT Series One 100. High gain set. 2x JJ ECC83S, 1x JJ ECC83S Balanced, 1x JJ ECC82, 4x JJ EL34 Platinum Matched.
Sovtek replacement tubes kit for the Blackstar HT Series One 100. High gain set. 2x 12AX7LPS Sovtek, 1x 12AX7LPS Sovtek Balanced, 1x 12AU7 EH, 4x EL34 EH Platinum Matched.
Tungsol replacement tubes kit for the Blackstar HT Series One 100. High gain set. 2x 12AX7 Tungsol, 1x 12AX7 Tungsol Balanced, 1x 12AU7 Tungsol, 4x EL34B Tungsol Platinum Matched.