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Old 30th Nov 2018, 12:55 am   #22
Maarten
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Join Date: Dec 2007
Location: Haarlem, Netherlands
Posts: 4,199
Default Re: Coax cable - When did it begin?

Quote:
Originally Posted by MotorBikeLes View Post
Regarding the balanced twin, I recall seeing American antenna stuff always referred to as 300 ohm.
However my first CTV, a NordMende 2245 (F2 chassis) back in 1970 had a balanced twin aerial input clearly marked 240 ohms.
Their earlier FM radios had balance twin for FM, I think also marked 240 ohms. Big connectors then, but smaller "DIN" types on the TV and later (1967) FM radios.
I have seen various twin cables, probably intended to be 300 ohms on far eastern sourced stuff, since there was always a USA input even if decades previously. Definitely different to some white plastic twin that was sourced in Germany in 1970.
Les.
I'm a bit suprised that that set still had a balanced input. As far as I remember, German sets from that era already had coax inputs. Could this have been something for export (UK) sets? Or maybe I'm confused because of the F2 designation. Wouldn't that have been from the late 1970's?
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