Does anyone have a copy of this book?
"Particulars about small oscillator with mercury stream break used for running vacuum tubes in laboratory
Secondary coil rewound each side 40 turns in first two layers + 15 layers at 23 turns } Each part 40+345=385 turns.
Condenser about 3.5 uF
Total secondary turns 775
Primary of copper sheet 1/100th " thick, 6.25" wide, mean diam. Of coil 7 1/4" nearly.
--- I find this interesting. I need to wind two Pancake Coils roughly 7" diameter to these specs. For the hard core coilers, some things really stand out to me. Curious as to your opinions to see if they coincide :) ...
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