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LIGHT_PEN_PREAMP

2014-12-01 04:08  
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LIGHT_PEN_PREAMP
Raises signed level of germanium photodiode before it is fed through coax to main amplifier. Special decoupling in collector circuit allows power and signal to be supplied simultaneously over single coaxial cable.-B. M. Gurley and C. E. Woodward, Light-Pen Links Computer to Operator, Electronics, 32:47, p 85-87.