These should work as power tubes as well, right? I have credit on amazon so that’s better 6J1P-EV Matched Pair 7-Pin Fully Tested Vacuum Tubes = Upgrade for CV850 / 6AK5 / 6AK7 / 6J1 / 6J1P / EF95 / 6F32 / 5654W Soviet Military https://www.amazon.com/dp/B083HJQNHT/ref=cm_sw_r_cp_api_i_lGqxFbYE7QNHB