D1C

High-frequency triode for grounded-grid amplification, low-noise amplification, oscillation, or frequency multiplication in VHF/UHF equipment.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 1.25 V / 50 mA

Description

Triode vacuum tube documented for ultra-short-wave applications, with heater, operating-characteristic, and limiting-rating data extracted from the supplied datasheet.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: -
Base pins: -
Nominal heater voltage: 1.25 V
Nominal heater current: 50 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

1 physical section, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances

Plate resistance: 24000 Ω
Amplification factor: 16
Max cathode current: 4 mA

Philips Miniwatt D1C directly heated ultra-short-wave button triode. Typical conditions: anode 135 V, grid -5 V, anode current 2 mA, internal resistance 24 kΩ, amplification factor 16. Maximum cathode current 4 mA. The published 135 V plate figure is a limiting rating; characteristic values are typical.

Source-dependent data

Operating conditions by source

Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.

Data set 01

1999 Philips 0-D

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Heater voltage
1.25 V
Nominal
Heater current
50 mA
Nominal

Characteristic

~ Chauffage dir, per batterie, alimentation Ti I`
25 V
Published datasheet value
en parallele If
50 mA
Published datasheet value
Va
135 V
Published datasheet value
Ia
2 a
Published datasheet value
Vs max,
135 V
Published datasheet value
Is max
500 mA
Published datasheet value
Ik max,
4 mA
Published datasheet value
Vg (Ig
300 mA
Published datasheet value