Data set 01
1950 Sylvania
Published operating points and test conditions from this source.
SECTION 1
Triode
Characteristic
Heater Voltage
26.5 V
Heater Current
45 mA
Voltage - Triode (single high frequency) ·Triode
6055
Sylvania 6055 ruggedized 26.5 V subminiature medium-mu UHF triode with 8DK flexible-lead basing, designed for severe shock and vibration.
Directly heatedCold cathodeCommon cathodeDissimilar
- Sections
- 1
- Base
- 8DK
- Socket code
- -
- Base pins
- 8
- Nominal heater
- 26.5 V / 45 mA
Description
Subminiature medium-mu triode.
General specifications
Tube and section characteristics
Properties common to every published source and operating point.
Heater and base
- Base
- 8DK
- Socket code
- -
- Base pins
- 8
- Nominal heater voltage
- 26.5 V
- Nominal heater current
- 45 mA
- Parallel heater voltage
- -
- Parallel heater current
- -
- Series capable
- No
8DK - Terminal pinout
Electrical assignments shared by every tube using this base designation.
| Terminal | Section | Connection | Evidence |
|---|---|---|---|
| PIN1G1 | A | G1 — Control Grid EIA source transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8DK |
| PIN3H | — | H — Heater EIA source transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8DK |
| PIN5K | A | K — Cathode EIA source transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8DK |
| PIN6H | — | H — Heater EIA source transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8DK |
| PIN8P | A | P — Plate (Anode) EIA source transcription; manufacturer confirmation pending | Unverified EIA Base Connections, printed page 129, 8DK |
Section ratings
1 physical section, each with unique specifications.
Section 1
Triode
X-ray radiationInterelectrode capacitances
- Transconductance
- 0.005 S
- Amplification factor
- 19
- Max plate voltage
- 55 V
Sylvania 6055 ruggedized UHF triode, RTMA 1951. Heater 26.5 V 45 mA, max plate 55 V DC, max plate current 22 mA, max grid current 8.5 mA, heater-cathode max 200 V. Typical at Va 26.5 V with 2.2 MΩ grid resistor: Ia 3 mA, gm 0.005 A/V, mu 19; grid voltage for Ia 10 µA -3.5 V. Direct capacitances Cgp 1.8 pF, input 2.2 pF, output 0.8 pF. Impact 450 g, uniform acceleration 1000 g, sustained vibration 2.5 g; max bulb 160°C, life 5000 h. Eight flexible leads 8DK.
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.