Quote:
Originally Posted by Penthode
Can you get a signal thru at 22MHz? If so then the trap is attenuating. Because you offset the stagger tuned stages, likely there is less gain around 21.25MHz.
Tell us if you get anything at 22, 23 or 24MHz. If so, you are not getting sufficient signal thru at 21.25MHz. raise the signal and reduce the bias from -4.5v. adjust the pot until you get a signal.
How are you injecting the RF out from the HP8601a?
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What do you mean by "get anything"? Do you mean deflection on the VTVM or do you mean the ability to tune the trap and see deflection at those alternate frequencies?