[Heathkit] SB-200 Talk Back

[Jim Brannigan]

The best "talk back" was from 866 rectifiers.
On CW,  the pulsing blue glow and buzz made one think of the old spark gap
transmitters.....

Jim


> Back when I first upgraded from Novice in 1959 I built
> a homebrew plate modulator that used a pair of 807
> tubes.  Not only did they "talk back", but they
> "glowed" blue and you could actually see the audio as
> you modulated.  The tubes were not gassey, but they
> definitely had a blue glow when used as modulators.
>
> Glen, K9STH
>
>
> --- peter A Markavage <manualman at juno.com> wrote:
>
> You know you "get no respect" when even the ceramic
> capacitors talk back to you.
>
>
> =====
> Glen, K9STH
>