[Boatanchors] Request for info Beckman #905 WWV receiver

Byron Tatum bjtatum1 at peoplepc.com
Thu Oct 11 02:47:45 EDT 2007


Hello-
    I have thoughts of building a portion of the Beckman #905 WWV receiver. Have been studying the manual and schematic. Notice the use of JW Miller series 4500 coils in the front end and osc. I have a few of these, plus the lower inductance ones are easy to duplicate. The RF amp plate coils and osc coils have no extra windings added to stock Miller coils. However, the ant coils have a winding for low impedance ant. winding.
    Does anyone have one of these receivers that would be willing to look at the ant coils and see if they could count the turns that were added to each coil ( 5 total, 2.5 thru 25 Mhz) and to describe how they are placed on the coil in relation to factory winding?
                                                Thanks, Byron WA5THJ


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