←4Y100R

4Y100R

Pentode · IHT · Octal · 1960

Power pentode delivering up to 100W in pentode, UL, or triode mode

TRANSCONDUCTANCE10.0mA/V

Cgk22.0pF

Cgp1.5pF

Cpk18.00pF

GAIN0%

POWER100%

DRIVE50%

LINEARITY75%

HEATER4V / 2.9A

MAX PLATE1000V / 100W

BASEoctal

EXECUTIVE SUMMARY

The 4Y100R is a indirectly-heated pentode from Mullard, introduced around 1960. Commonly used in output power applications.

APPLICATIONS

Power output

Generic pentode output power stage

• PA/public address

VS 12E1

HISTORY

Introduced1960ManufacturerMullard

Late Production

SPECIFICATIONS

Heater Voltage4V

Heater Current2.9A

Max Plate Voltage1000V

Max Power100W

Sensitivity10 mA/V

Gain Factor—

Internal Impedance—

PinoutOctal

Era1960

RarityRare

Input Capacitance22pF

Miller Capacitance1.5pF

Output Capacitance18pF

SPICE model not yet available. Loadline calculator requires calibrated Koren parameters.

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