ECL82

Name: ECL82
Brand: Philips

Triode-Pentode — Noval — Philips

Data: HighHigh quality — base, heater, all universal parameters present, and ≥50% of desirable parameters filled in. Safe to use for design decisions.

↗ TDSL ↗ Radiomuseum

Known Equivalents & Substitutes

6BM8CV5215

Similar Tubes (Not Drop-In Compatible)

ECL85

Triode-pentode compound on Noval base but designed for frame output, not audio — different characteristics

ECL86

Similar triode-pentode compound on Noval base with higher output power (4W vs 3.4W) — different operating points, not pin-compatible

Electrical Specifications

Section 1 — Triode

Absolute Maximum

Anode Voltage (max)Anode Voltage (max)300V

Anode Dissipation (max)Anode Dissipation (max)1.5W

Typical Operating

Anode Voltage (typical)Anode Voltage (typical)200V

Grid 1 Bias VoltageGrid Voltage-3

Notes

The triode section: mu=70, Rp=14.5kΩ, Gm=4.8 mA/V at Va=200V, Vg=-3V. Plate dissipation max 1.5W.
The pentode section: at Va=170V, Vg2=170V, Vg1=-7.3V: Ia=34mA, Ig2=4.5mA, Rp=40kΩ, Gm=10.2 mA/V. Output power 3.4W at 5% THD with 5kΩ load. Plate dissipation max 9W, screen dissipation max 1.7W.
The 6BM8 is the American designation for the same tube with identical pinout and characteristics.
Common in European single-ended amplifiers where a single ECL82 provides both driver and output stages. Two ECL82s can be used in push-pull for approximately 8W output.

Pin Layout — Noval

1Triode Plate

2Triode Grid

3Triode Cathode

Socket-Compatible Tubes ⚠ Not electrically compatible

AL860

References