Universal tester for all Nixie tubes and drivers K155ID1 SN74141 Tube socket SK-136 on board for Nixie Tubes: IN12, IN15, ZM1100 etc.External outputs – you can connect any tube using cables: IN-18, IN-4, IN-12, IN-1, IN-2, IN-8, IN-7, Z566M, Z573M, Z5700M, ZM1080 and others (cables are not included in the package, but you can buy them from me.)Driver socket: DIP16Power Supply: standart (positive central pin) DC, 12V 1A.Voltage adjustment (for nixie tube): 80-200V Included in package: -nixie tester 1pcs. new -IN-12 1pcs. new -K155ID1 1pcs. new If you have any questions, ask, I’ll be happy to answer!