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804-B: Difference between revisions
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The Type 804-B is a UHF signal generator designed for radio receiver servicing. It covers 7.5 to 330 MHz in five ranges and a user defined sixth range, a blank coil form is supplied with the instrument. With the use of the carrier level meter and attenuator, calibrated levels from 0 to 20 μV are achieved. Front panel switch selects AM modulation of 400 Hz, external modulation or modulation disabled. Caution should be used as there is incidental FM present, particularly at higher frequencies. The vacuum tube used for the oscillator is an RCA "Acorn" type 955 triode. The 804-B uses the Type 774 coaxial connector for carrier output. | The Type 804-B is a UHF signal generator designed for radio receiver servicing. It covers 7.5 to 330 MHz in five ranges and a user defined sixth range, a blank coil form is supplied with the instrument. With the use of the carrier level meter and attenuator, calibrated levels from 0 to 20 μV are achieved. Front panel switch selects AM modulation of 400 Hz, external modulation or modulation disabled. Caution should be used as there is incidental FM present, particularly at higher frequencies. The vacuum tube used for the oscillator is an RCA "Acorn" type 955 triode. The 804-B uses the Type 774 coaxial connector for carrier output. | ||
Note: The undocumented Type 804-C pictures are used for this article. | Note: The undocumented Type 804-C pictures are used for this article. A schematic for the 804-C is located at the rear of the 804-B manual. | ||
==Specifications== | ==Specifications== | ||