Power - Pentode Single (NOT beam) (under 10W) ·Pentode
Power/output pentode designed for audio-frequency power amplification in single-ended or push-pull output stages.
Indirectly heated power output pentode, companion designation to EL11 on the combined Philips sheet, intended for audio-frequency output service.
Steel-tube 8-contact
General specifications
Properties common to every published source and operating point.
Electrical assignments shared by every tube using this base designation.
No verified pinout is recorded for this base designation.
1 physical section, each with unique specifications.
Section 1
Power output pentode
Source-dependent data
Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.
Data set 01
Published operating points and test conditions from this source.
Cbauffage id., courant alternatif, alimen- Vf
6.3 V
Wo (dtot = 10%)
4.5 W
Vi (dtot = 10%)
4.2 V
Vi (Wo [1]
50 mW
Vi (Wo [2]
0.33 V
Vgl (Igl = + [1]
0.3 µA
Vgl (Igl = + [2]
-1.3 V
Va
250 V
Vgl
250 V
Vgl
-6 V
is
36 mA
Ig2
4 mA
Rk 1500
9 mA/V
Vao max
550 V
Va max
250 V
Wa max
9 W
Vg2o max
550 V
Vg2 max
275 V
Wg2 (Vi = 0) max
1.2 W
Wg2 (Wo max) max
2.5 W
Ik max
55 mA