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6AB4 Vacuum Tube New and Used

- Description
- Specifications
The 6AB4 is a 7-pin miniature high-mu single triode engineered for grounded-grid RF amplifier, local oscillator, and frequency mixer service in VHF television tuners and FM radio receivers. Electrically equivalent to half of a 12AT7 dual triode, it offers high transconductance and low internal noise at operating frequencies up to 300 MHz. Operating on a 6.3V/150mA heater, it was widely specified in post-war equipment manufactured by RCA Victor, Zenith, Philco, and General Electric, as well as European chassis under the EC92 designation. Available in NOS and tested used conditions.
Type: High-Mu Single Triode (VHF RF Amplifier / Oscillator / Mixer)
Base: 7-Pin Miniature (EIA 5CE / B7G layout)
Heater Voltage: 6.3V
Heater Current: 0.15A (150 mA)
Max Plate Voltage: 300V
Max Plate Dissipation: 2.5W
Amplification Factor (Mu): 60
Transconductance: 5,500 microsiemens (5.5 mA/V)
Equivalents: 6AB4, EC92 (European designation), 6664 (premium high-reliability version), 6C4 (medium-mu relative), 12AT7 (dual-triode electrical equivalent)