[Amps] 8877 input Z

["Hardy Landskov" <n7rt@cox.net>]

I am looking for the input impedance of an 8877. I found one source and that 
was K6DC's (SK) article years ago that said it was 54 ohms with no frequency 
dependency or reactive component. The input C is 42 pF according to the data 
sheet. So I will assume I can use 54 ohms in parallel with 42 pF. Anyone have 
anything different?
73 Hardy N7RT
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