NJ7P SQL Tube Database Query

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6U5
Electron Ray Tuning Indicator

EIA Base & Outline

EIA Base: 6REIA Bulb: 9-26

Substitute Data

Preferred Substitutes ......................... 6E5 6G5
Substitutes ................................... 6T5 6AB5 6N5
Source ........................................ RCA RC-15 - 1947

Application

Source ........................................ RCA RC-15 - 1947
Glass type used to indicate visually by means of a flourescent target the effects of a change in a controlling voltage. It is used as a convenient, non-mechanical means of indicating accurate radio-receiver tuning.

Source ........................................ RCA RC-15 - 1947
Requires 6-contact socket and may be mounted in any position. This type has a remote plate-current cutoff characteristic.

Mechanical Data

Source ........................................ RCA RC-15 - 1947
Bulb .......................................... T-9
Base Type ..................................... Small 6-Pin
EIA Outline ................................... 9-26
EIA Base ...................................... 6R
Mounting Position ............................. Any

Electrical Data

Source ........................................ RCA RC-15 - 1947
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.3 A
Maximum Heater-Cathode Voltage
Heater Positive with Respect to Cathode
DC Component ............................ 90 V
Heater Negative with Respect to Cathode
DC Component ............................ 90 V

Maximum Ratings (Design Center Values)

Indicator
Source ........................................ RCA RC-15 - 1947
Plate Voltage ................................. 285 V

Characteristics and Typical Operation

Visual Indicator
Source ........................................ RCA RC-15 - 1947
Plate Voltage ................................. 250 V
Plate Resistor ................................ 1M Ω
Plate Current ................................. 0.24 mA
Target Voltage ................................ 250 V
Target Current ................................ 4.0 mA
Voltage for Zero Degrees ...................... -22 V
Voltage for Ninty Degrees ..................... 0 V

Visual Indicator
Source ........................................ RCA RC-15 - 1947
Plate Voltage ................................. 200 V
Plate Resistor ................................ 1M Ω
Plate Current ................................. 0.19 mA
Target Voltage ................................ 200 V
Target Current ................................ 3.0 mA
Voltage for Zero Degrees ...................... -18.5 V
Voltage for Ninty Degrees ..................... 0 V

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Tue, 31 Jan 2023 09:43:28 -0700