Phono Oscillators

[Hue Miller]

At 08:40 PM 9/10/99 -0500, Lee Smith wrote:

>>Another handy toy from the 50s was the Bud Phone Oscillator.  A single
>>117L7/M7 tube provided AC/DC 115 volt operation.  The unit was a modulated
>>oscillator.   Despite
>>its low power and lean modulation, the unit could be heard all over the old
>>home town (population 29,000).

--hmmmm. I'm wondering how you got that good range. These things operate
in the milliwatt range, and the antenna is not well matched to the tuned
circuit. Typical range is more like just a few city blocks.
Hue

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