The Museum of HP Calculators

HP Forum Archive 14

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HP 11C R and C oscillator values
Message #1 Posted by jean baptiste minazio on 18 Feb 2005, 7:39 a.m.

Please can you tell me what are the valuer of the Resistor and Capacitor resonnator value of the HP 11C calculator. The capacitor is broken on mine and would like to solder a new one but I dont know the value. The resistor value is for my confirmation of what I mesured Many thanks Jean Baptiste

      
Re: HP 11C R and C oscillator values
Message #2 Posted by Tony Duell on 18 Feb 2005, 6:43 p.m.,
in response to message #1 by jean baptiste minazio

It's an LC (Inductor/Capacitor) circuit, not RC. The values I have (found in both a 12C and a 16C, I guess the 11C is the same) are 180uH for the inductor and 180pF for the capacitor.


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