Transformer WS1 AC Adapter 120 volt / 12 volt pn V3186 for Clack WS1 Valve and other "brands" that use the Clack type of valve under their private label.
NOTE: Clack starting sending valves with a 15 volt DC transformer after 2017.
It is not yet available as a separate item ( will be PN V3186-06 ) - only sold with new Valves / newer Control Boards.
HOWEVER... the AC 12 volt transformer ( V3186 ) will operate both Old and New style control boards.
So, this transformer ( AC 12 volt V3186 ) remains the Replacement for Clack power supply.