English: From my personal collection. A 12/1951 dated network in a Western Electric model 500. Network is model 425A, the original unit introduced in 1949. Inside the "potted" network are varistors, capacitors, and cosmoline.
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2008-12-30 06:00 Mcheath 1024×768× (238579 bytes) From my personal collection. A 12/1951 dated network in a Western Electric model 500. Network is model 425A, the original unit introduced in 1949. Inside the "potted" network are varistors, capacitors, and cosmoline.
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