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"Paul P" REMOVE paul @ REMOVE ppinyot . REMOVEcom wrote in message
... And check all the carbon composition resistors for tolerance. They tend to drift higher. If you replace any resistors use a non inductive resistor (carbon compositions) in circuits above....say...18mhz or less. Ordinary film resistors, either carbon film or metal film, will work fine. The inductance is not significant unless the value is below 100 ohms. Above this value, shunt capacitance dominates the impedance. A ten ohm resistor starts becoming inductive around 20 MHz and a 1 ohm resistor starts becoming inductive over 1 MHz. If your email works, I'll send you some graphs. 73, Barry WA4VZQ |
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