Hi-impedance headphone design

October 24th 03, 02:15 PM

Bob Lewis \(AA4PB\)

Posts: n/a

Hams used 8 ohm dynamic phones, or they used hi-Z crystal phones.

I disagree. They used 2000 ohm variable reluctance headphones.

Hams have always used anything available. 25 years ago was 1977. By
that time the vast majority of receivers were designed for 8-ohm
headphones as most are today. Hi-Z crystal phones haven't been in
general use for a long time.

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