[Coco] A little off topic

[David Ladd]

John Mark Mobley,

That is cool.  :)  I just went through some very old books I had picked up
from Radio Shack cause I thought I saw this circuit before.
They also had this circuit in the:
(Archer) Radio Shack Cat. No. 276-5015
Engineer's Mini-Notebook - Communications Projects.
The same circuit is on page 42 in this as well. :)

Nice find there Sir. :)

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On Wed, May 17, 2017 at 8:16 PM, Melanie and John Mark Mobley <
johnmarkmelanie at gmail.com> wrote:

> How to build a AM Transmitter...
>
> Radio Shack Cat. No. 62-5018
> Engineer's Mini-Notebook Science Projects
> By: Forrest M. Mims III
> Page 42
> RF Telemetry Transmitter
>
> You will need:
> 1) 30 gauge Magnet Wire
> 2) 1/4" Soda Straw
> 3) 2N2907 transistor
> 4) 50k-ohm potentiometer (pot)
> 5) 10k-ohm at 25 degrees C Thermistor
> 6) 10 microfarad capacitor (cap)
> 7) 1.5 volt battery
>
> This simple low-power Radio Frequency (RF) transmitter will broadcast
> temperature as a series of clicks to a nearby radio tuned to the upper end
> of the AM broadcast band.
>
> ----
> This book has many science projects...
> Electroscope
> Galvanometer
> Homemade Batteries
> Graphite Resistor
> Liquid Resistor
> Super Capacitor
> Thermocouple
> Small DC Motor Circuits
> Inverse Square Law
> Light Listener
> Monitoring Sunlight
> Electromagnetic Probe
> Wind Speed Indicator
> Rain Sensors
> Electronic Thermometer
> Motion Detector
> Position Detector
> Pressure Sensor
> Seismometer
> Earth Movement Sensor
> RF Telemetry Transmitter
> LED Telemetry Transmitter
> Electronic Cricket
> Analog Data Logger
>
> John Mark Mobley
>
>
>
> --
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> Coco at maltedmedia.com
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>