20 Hz v.mp4Single wire good NO AUDIO.mp420240124 201400 1.mp4  

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Photo of VFO circuit change --- Schematic 51E

This is a close up photo of the VFO tube and filter used to reduce the VFO second harmonic and nuke the third harmonic which is responsible for birdies and spurs.  

CLOSE UP OF VFO FILTER CIRCUIT CHANGE
GLOBAL VIEW OF VFO FILTER CIRCUIT CHANGE

Unfinished 1Kc dial overlay and Lexan outer ring.  Notice the eliptical cut on the old gear.  This provided a keyed patern to cut the Lexan replacement.  The next photo is all of the parts assembled in the radio.

  

  

VFO Circuit change --- Schematic 51E

This is a photo that shows all of the VFO change wiring.

New overlays for 500Kc, 1Kc, and meter dials.

Note the old dials

Kirts radio with VFO and meter dials installed, aligned, and drift adjustment installed.

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