Values are estimates from recent comparable sales — condition, accessories, and included extras vary. Always compare before buying.
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Median sold price per month, trailing 1 months. Roughly flat over the period.
Based on classifieds listings marked SOLD — asking prices sellers marked as sold, not confirmed sale prices. Refreshed daily from our deal-scan comp checks.
| Date sold | Item | Price | Status |
|---|---|---|---|
| Individual sold records for this model are still being compiled — the fair-value estimate above is based on 4 recent sales. | |||
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EIMAC 8874 is a compact external-anode, ceramic/metal triode intended for use in zero-bias Class-B amplifiers in audio or radio-frequency applications. Typical applications include RF transmitters, high-power audio amplifiers, and other zero-bias Class-B or AB amplifiers where high gain and efficiency are needed.
It is a compact, high-mu, external-anode ceramic/metal triode designed for zero-bias Class-B audio or RF amplifiers. It can also operate in grounded-grid mode for high power gain.
The 8874 uses axial-flow forced-air cooling and is rated for 400 W anode dissipation. It requires about 8.6 ft³/min airflow at 50 °C, with a pressure drop of ~0.37 in H2O across the anode cooler.
Length: 2.14 in (54.41 mm). Diameter: 1.64 in (41.66 mm). Weight: ~8.5 oz (240.9 g). Base: Large-wafer 11-pin with ring (JEDEC E11-81).
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