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| Patents for H03F 3 - Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements (44,008) |
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| 02/03/1976 | US3935971 Double pump device for mixing two or more liquids with variable relative ratios and concentrations | | 01/27/1976 | US3935477 Analog inverter for use in charge transfer apparatus | | 01/20/1976 | US3934209 High voltage DC coupled amplifier | | 01/20/1976 | US3934158 Switching circuit | | 01/13/1976 | US3932820 Crossed field amplifiers | | 01/13/1976 | US3932768 Limiting amplifier | | 01/06/1976 | US3931582 Isolated DC amplifier circuit | | 01/06/1976 | US3931581 High-efficiency, switching, power amplifier |
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