An a.c. operated beat‐frequency oscillator constructed from ordinary radio parts is described. The circuit design gives good wave form, and excellent stability of frequency with changing line voltage.

Topics
Electric currents, Oscillators
1.
Llewelyn
,
Proc. I.R.E.
19
,
2063
(
1931
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2.
Dow
,
Proc. I.R.E.
19
,
2095
(
1931
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© 1935 American Institute of Physics.
1935
American Institute of Physics
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