Build a “Throbbing” Tube-Driven Vibrato – Vintage plans from 1957

From the archives,

Build Your Own Vibrato

Make like Elvis with an “electronic” throbbing guitar

These vibrato (actually tremolo) plans were first printed in the Popular Electronics December 1957 issue. We’ve taken all text and re-typed it and provided good resolution scans of all schematics.  Everything is compiled in one PDF document below.  Download and print out.

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