OwenDuffy.net |
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Above, constructed with N jacks for the receiver and unknown port, and jack for external DC supply.
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Above, a view of the interior from the front. The jack for external DC can be seen at the rear of the original battery compartment.
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Above, a view of the interior from the rear. A 100mA Polyswitch was added to the switch board to provide overcurrent protection, mainly for the external supply / battery.
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Above, the waveform at the collector of a multivibrator transistor, and the modulated noise into the bridge (loaded). The modulated noise is quite different to that shown in the manual, partly due to the fact this is a single trace captured on a DSO.
Version | Date | Description |
1.01 | 08/04/2011 | Initial. |
1.02 | ||
1.03 |