In article ,
David Looser wrote:
Those sort of output impedances were common in valve days. Use a video
or RF coax to your requirements. Maplin sell a range by the metre.


Hence the DIN idea of using a low input impedance at the other end of
the cable. A pretty crap idea (IMO) but as a way of reducing the HF
loss from cable capacitance it worked.

But only if you have an even lower source impedance. ;-)
Easy to do with transistors. With valves you need an extra stage.

--
*Ever stop to think and forget to start again?

Dave Plowman London SW
To e-mail, change noise into sound.