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> E.f. johnson swr bridge #250-24
E.f. johnson swr bridge #250-24
E.F. Johnson SWR Bridge #250-24
Westinghouse #301 millamperes d.c
E.F. Johnson SWR bridge NIB #250-24, Is used to measure the SWR on 52 and 70 ohm coax line .Meter is read at low power r.f. (1 watt according to manual). The instruction manual is an excellent reproduction from vintage manuals. You also need 0-1 milliamp meter , I had one in my junque box so I will include it gratis
