Theatrecrafts.com > Backstage Heritage Collection > Equipment > SD/WH

SD/WH  (1959 April)
Strand


SD/WH Demo Prototype (from Lights! issue 10)

The first 220/240V SCR dimmer
Demonstrated by Strand in April 1959 on the same occasion as the first level memory control. SCR stands for Silicon Controlled Rectifier.

See also:


Catalogue & Journal Entries for SD/WH in the Backstage Heritage Collection


The Evolving Dimmer Rack (LIGHTS! - 1993)

Back to Dimming and Multiplex (Strand)


451