Popular Electronics February 1970

Popular Electronics, February 1970, Nixie Decade DCU
Copyright 1970 Poptronix, Inc.; used by permission.

Two Tone "Waverly" Alarm
By Don Lancaster

Build Numeric Glow Tube DCU
By Don Lancaster

The Thumpa-Thumpa Box
John S. Simonton, Jr.
PAIA Electronics

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This page was last edited October 05, 2006