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A horizontal ribbon.

1612
Pentagrid Mixer Amplifier

EIA Base & Outline

EIA Base: 7TEIA Bulb: 8-4
Source ........................................ RCA DS 01/01/43

Application

Metal type used as mixers to superhetrodyne circuits having a separate oscillator stage as well as in other applications where dual control is desirablein a single stage.

The two separate control grids are shielded from each other and the coupling effects between oscillator and signal circuits are very small. Requires octal socket.

Mechanical Data

Bulb .......................................... MT-8
Base Type ..................................... Small Wafer Octal 7-Pin
EIA Outline ................................... 8-4
EIA Base ...................................... 7T
Top Cap ....................................... Miniature
Mounting Position ............................. Any

Electrical Data

Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.3 A

Direct Interelectrode Capacitances (approx)

Pentagrid
Grid No. 3 to Plate ........................... 0.10 pf
Grid No. 3 to Grid No. 1 ...................... 0.20 pf
Grid No. 1 to Plate ........................... 0.001 pf
Grid No. 3 to All (RF Input) .................. 10 pf
Grid No. 1 to ALL (Osc Input) ................. 7.5 pf
Plate to All (Mixer Output) ................... 11 pf
Grid No. 1 to All Except Cathode .............. pf

For other characteristics and typical operation, see 6L7

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Fri, 19 Aug 2022 07:20:33 -0700