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The Quarterly Review ; March edition, 1825
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| Number | Title | Issue Date |
| 4259745 | Tuning indicator circuit Disclosed is a tuning indicator circuit including a receiver in which an output signal voltage of a detector circuit of the receiver is compared with a reference voltage from a voltage divider by means of a voltage comparator, whereby a tuned or untuned s... | 03/31/1981 |
| 4224691 | Tuning indicator system for FM radio receiver A tuning indicator system for making visual tuning indication of an FM radio receiver, in which a dc-voltage component and a detuning-noise component of the output of an FM demodulator in the receiver are detected and then subjected to level comparison fo... | 09/23/1980 |
| 4165500 | Tuning indicating device having a two-dimensional display of two values A tuning indicating device in a radio tuner displays S-meter and T-meter tuning information in a single, two-dimensional display. The display unit forms a two-dimensional pattern in response to drive signals corresponding to the S-meter and T-meter tuning... | 08/21/1979 |
| 3987401 | Indicating system using multicolor light emitting diodes An indicating system for a radio receiver is formed of an indicator and associated control circuitry. The indicator is comprised of two emitting diodes wired in parallel and in reverse polarity, and encapsulated in a translucent package. Each diode in an ... | 10/19/1976 |
