Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific current responsive fault sensor
Patent
1976-08-24
1978-12-26
Griffin, Robert L.
Electricity: electrical systems and devices
Safety and protection of systems and devices
With specific current responsive fault sensor
361395, 361399, H04B 108
Patent
active
041318510
ABSTRACT:
A receiver for radio signals, comprising an r-f (radio-frequency) unit and an a-f (audio-frequency) unit, the circuit in the a-f unit being interrupted at certain points and the receiver being devised electrically and with respect to its spatial design in such a way that, by changing modules accommodated within the spatial confines of the receiver case, completely different technical versions of the receiver are obtained.
REFERENCES:
patent: RE25317 (1963-01-01), McCoy
patent: 2922043 (1960-01-01), Decker et al.
patent: 2963577 (1960-12-01), Errichiello et al.
patent: 3054024 (1962-09-01), Dillen et al.
patent: 3396313 (1968-08-01), Payne
patent: 3524198 (1970-08-01), Malmstadi et al.
patent: 3603845 (1971-09-01), Beers
patent: 3769552 (1973-10-01), Cook et al.
patent: 3899720 (1975-08-01), Peterson
patent: 3950677 (1976-04-01), Klein et al.
Heath's Digital FM Tuner, Radio Electronics, May 1973, pp. 42-45, 50 & 98, by David M. Thomas.
MacGillavry Donald H.
Martiny Wolfgang
BASF - Aktiengesellschaft
Chin Tommy P.
Griffin Robert L.
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