Transformer WS1 DC Adapter 120 volt / 15 volt pn V3186-06 ( replaced V3186-05 ) for Clack WS1 Valve and other "brands" that use the Clack type of valve under their private label.New = Clack started sending valves with a 15 volt DC transformer after 2017.
And this DC transformer ONLY works with newer Valves / newer Control Boards ( since 2017 ).
HOWEVER... the AC 12 volt transformer ( V3186 ) will operate both Old and New style control boards.
HISTORY of AC and DC operated boards and their Transformers:
All Clack control boards made before 2014 will only work with the AC transformer V3186.
And the 3 button TC boards made before 2017 will only work with the AC transformer V3186.
All boards made AFTER 2017 ( and some 5 button boards made after 2014 ) will work with either the older AC transformer,
Clack stopped making the AC transformers in July 2021.
We will continue to order the AC version as long as our stock holds out, then only the DC transformer will be available.