Perrygraf Boonton Electronics Resonance Slide Rule

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Country of manufacture: USA,            Date of manufacture: ____
Overall length: 23.8 cm,          Width: 10.2 cm.,           Weight: 32.4 gms.
Materials: cardboard shell with cardboard slide
Cursor: no cursor
Scales: 17
Front: Resonance-Wavelength: [ Frequency (5.0 GHz - 0.5 MHz) ] L [ C, λ ] Air Dielectric, Solid Dielectric [ Frequency (50 MHz - 5 KHz) ] L [ C, λ ] Air Dielectric, Solid Dielectric
Back: Inductance (Single layer close-wound coils): Wire Size & Type [ Axial length of Coil ] L [ Reference No. ] Mean Coil Diameter, Instructions for Use
Condition: C3-C4 (Signs of Very Minimal to Minimal use)
Came with: Three page instruction sheet

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