7027A
Tetrode · IHT · Octal · 1958
“High-voltage 6L6. Ampeg bass tone.”
Beam power tetrode rated at 35W for high-power output stages
TRANSCONDUCTANCE0mA/V
GAIN0%
POWER88%
DRIVE50%
LINEARITY75%
EXECUTIVE SUMMARY
The 7027A is a indirectly-heated beam tetrode from RCA, introduced around 1958. Commonly used in power (pp) applications. High-voltage 6L6. Ampeg bass tone.
APPLICATIONS
High-power output
Generic tetrode power (pp) stage
• PA/public address
HISTORY
Introduced1958ManufacturerRCAEquivalents6L6GC (higher voltage)
Golden AgeSPECIFICATIONS
Heater Voltage6.3V
Heater Current0.9A
Max Plate Voltage600V
Max Power35W
Sensitivity6 mA/V
Gain Factor—
Internal Impedance—
PinoutOctal
Era1958
RaritySought-after
SPICE model not yet available. Loadline calculator requires calibrated Koren parameters.