AT312050B
(en )
1973-12-10
Differential amplifier circuit
CH457565A
(en )
1968-06-15
Balanced modulator-demodulator circuit
DK114456B
(en )
1969-06-30
Insecticide and nematodicide.
DK118567B
(en )
1970-09-07
Microphone system with one amplifier coupling and with two microphone groups.
AT243854B
(en )
1965-12-10
Amplifier with high input resistance
AT249746B
(en )
1966-10-10
Amplifier circuit with field effect transistors
CH497084A
(en )
1970-09-30
Power amplifier
AT269215B
(en )
1969-03-10
Amplifier circuit
CH416753A
(en )
1966-07-15
Amplifier circuit
DK124438B
(en )
1972-10-16
Electrical amplifier circuit with balanced input and unbalanced output.
CH408212A
(en )
1966-02-28
Photoelectric amplifier circuit
AT262376B
(en )
1968-06-10
Amplifier with transistorized push-pull output stage
FR1498197A
(en )
1967-10-13
Amplifier circuit
AT257002B
(en )
1967-09-25
Circuit with three-phase input
CH476216A
(en )
1969-07-31
Flow amplifier circuit
CH489955A
(en )
1970-04-30
Transistor amplifier arrangement with an input amplifier stage and an output amplifier stage
YU28343B
(en )
1970-02-09
ELECTRONIC SECRETARY SECRETARY
CH433445A
(en )
1967-04-15
Transistor amplifier circuit
DK114518B
(en )
1969-07-07
Mideovicide and fungicide.
DK110142C
(en )
1969-07-07
Push-pull power amplifier circuit.
NL160130C
(en )
1979-09-17
CIRCUIT WITH AT LEAST ONE OUTPUT AND AT LEAST ONE COUPLING ELEMENT.
CH432596A
(en )
1967-03-31
Isolation amplifier with high input resistance and low output resistance
NL148460B
(en )
1976-01-15
AMPLIFIER WITH VERY HIGH PARALLEL AND SERIES FEEDBACK.
NL150289B
(en )
1976-07-15
ADJUSTMENT AND DISCONNECTING DEVICE PROVIDED WITH AN AMPLIFIER AND MULTIPLE INPUT AND / OR OUTPUT TERMINAL PAIRS.
FR1436302A
(en )
1966-04-22
Photoelectric amplifier circuit