AlesaVaicVacuumTechnology
AV 5B SL / AV 5M SL Datasheet
These tubes are designed for driving Power Tubes that need a high input voltage on the grid, such as the AV 520B-SLX, VT-4C, UV845 and simular tubes. Other applications are, Very Linear Output tube ( pre-amplifer, Head-Phone Amplifier). Also it can be used a an Output Tube, producing maximum 5Watt Single Ended.
It uses AVVTs unique Open Filament structure, resulting in extreme linearity, also at high output voltage. (Note1)
Features
- AVVT's parallel ribbon filaments with 16 flat Surfaces, for more linearity
- Two large getters
- White nickel plates
- C37 Shaped Glass
- Anti-microphonic Suspension in Tube Top
- Hard-metal filaments, which can never break. ( Note2)
- Ceramic UX4 Socket with Gold Plated pins
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AV 5B SL, white nickel plates
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AV 5M SL, white mesh plates
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Filament Ratings
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Filament Voltage |
5 Volt (AC or DC)
AC only as loudspeaker End-Stage
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Filament Current |
1.3 Ampere
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Maximum Conditions See Note 3
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Anode Voltage |
400Volt
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Anode Current |
100mA
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Anode Dissipation |
16Watt
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Power Output in Class A |
5Watt
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Typical Data
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Anode Voltage |
350V
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Anode Dissipation |
16 Watt
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Anode Current |
45mA
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Grid Voltage |
-65Volt
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Plate Impedance |
935 Ohm
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Amplification Factor |
4,3
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Transconductance |
4,6 mA/V
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Load Impedance |
2000 - 5000 Ohms
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Grid resistor |
100k Ohm
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Operating Lifetime |
40.000 hours
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Mechanical Data
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Size |
170 x 60mm (Incl.Socket)
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Weight |
130 Gram
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For further information about our products, please visit http://www.jacmusic.com
Note 1) Open Filaments means, the filaments and the grid are longer than the Anode, and stick out on both ends for about 5...8mm. The not fully warm ends of the filaments do not have a very good function, and cause distortion. This tube doesn't use this part of the filaments. Emitted electrons from the cold ends, will bypass the anode, and land on the glass. At maximum Power this may cause fluorescent, blue glow on the tube glass inside. See also our Tech Brief on Blue Glow in Tubes.
Note 2) Hard-metal filaments are operated at much higher temperature than normal tubes. This tube will glow bright orange, instead of the dark orange color of nickel filament tubes.
Note 3) Individual Test data, such as: Matching Data, Grid Current, Vacuum, Filament Current, etc, are on the Certificate that comes with each individual Tube. Each tube is numbered, inside the glass with a metal Tag
Tube pictures with courtesy of VT-Components
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JAC-MUSIC ©2000. All Rights Reserved.
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