Blinker practice light

Details Blinker practice light Blinker practice light

1975-10-16

1977-02-01

Habecker, Thomas B.

Telegraphy

Learners' instruments

35 8A, 35 14, 340331, G09B 1926, H04L 1503

Patent

active

040063054

ABSTRACT:
A code practice blinker light is to be used in conjunction with a tape or record player sending code. The output signal of the tape or record player drives the input base circuit of a transistor, the switching action thereof causing the closing of a series circuit including a lamp which flashes on and off in response to the input audio signal.

REFERENCES:
patent: 1690279 (1928-11-01), Craft
patent: 2492160 (1949-12-01), Lekas
patent: 3598889 (1971-08-01), Switsen

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