[BC] Sam Philip's Console
Harold Hallikainen
harold
Wed Nov 23 17:53:57 CST 2005
Thanks for the info! I didn't start working in stations until 1970.
Harold
> In a message dated 11/23/05 1:13:38 PM Central Standard Time,
> harold at hallikainen.com writes:
> Remember that the old AM equipment performance rules required you to be
> +/-2dB from 100Hz to 5 kHz. Measurements were to be from 50Hz to 7.5kHz.
> That old vacuum tube equipment (consoles, transmitters, etc.) was
> typically flat down to 30Hz. A lot of the later stuff would roll off at
> 50Hz. You stack several of those items together and you could not reach
> the 100Hz requirement. That old "big iron" stuff was pretty good.
>
> Harold
> Harold the old AM rules required that you go down to 30 Hz. Later on
> amended
> to 50 Hz. I know because when I did the specified 30 Hz. the 60 Hz.
> flourscent lights would beat with the RF.
>
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