Installation And Application

The base pins of the RCA-801 fit the standard, four-contact socket, such as the RCA type UR-542A. The socket should be installed to hold the tube in a vertical position with the base down. If it is necessary to place the tube in a horizontal position, the socket should be mounted with the filament-pin openings one vertically above the other so that the plate will be in a vertical plane (on edge).

The plate of the 801 shows no color at the maximum plate-dissipation rating for each class of service.

When the 801 is used as a class A amplifier with resistance- or impedance-coupling in the input circuit, the d-c resistance in the grid circuit should not be made too high. A resistance value of 0.5 megohm for one 801 is the recommended maximum when cathode bias is used. Without cathode bias, the grid resistance should not exceed 100,000 ohms.

For high-frequency operation above 60 megacycles, see page 144.

For additional information, see chapters on INSTALLATION and APPLICATION.

average plate characteristics average plate characteristics

plate volts(eb)

Top View of Socket Connections

Top View of Socket Connections

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