.Set of two vertical units, each unit consists of a microphone, a receiver, bell and transformer, with visible wiring connections. Workable with 4-6 V d.c.
TELEGRAPH SET, LECTURE PATTERN – GUPTA BRAND 8006021
.Set of two vertical units, each unit consists of a microphone, a receiver, bell and transformer, with visible wiring connections. Workable with 4-6 V d.c.