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After the second world war, advertisers were looking for attractive signs that worked at night. Vacuum provided the answer – neon lighting. It was a revelation in the 1940s, adding some brightness after years of conflict.
The Edwards Electropneumatic Control Valves can be used to control the operation of pneumatically activated vacuum valves. Control valves are available in 3-port or 5-port versions with different supply voltages and frequencies to suit your application.
3-Port, 48 V d.c, 1/8 Inch BSP, North America
, 24 V a.c, 50/60 Hz, 6mm BSP with Bracket
5-Port, 110 V a.c, 50/60 Hz, ¼” BSP
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