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RFT VQA 46 East German orange LED

RFT VQA 46 East German orange LED

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Here you can see an old German orange LED. This LED has not a too red light unique most other orange LEDs. The light output is very dim. I also really like the clear case of that one.
This lamp also was made as all east German LEDs in the WF Plant in Berlin.

The Factory WF (Werk fuer Fernsehtechnik (Factory for Television Technology)) was founded in 1946 and later become part in the Company VEB Kombinat fuer Rundfunk und Fernmeldetechnik (RFT) ( Peoples owned company for Television and Telecommunication Technology). In the GDR WF was the only manufacturer that made coloured CRT TV screens, they also made a lots of special vacuum tubes, for example a xenon filled Thyratron I have (I can upload a picture if requested ), Photomultipliers or Nixies. As Technology went forward the become the East German leader in semiconductor technology, for example the east german version of NE555 timer was build by them, but also a lots of Germanium semiconductors, especially glas encopsulated Germanium diodes. WF was the only company in the GDR that made LEDs, here are some example out their Opto-electronics plant.
When the reunion come the WF plants were partly sold to samsung and their were made coloured CRT Display for computer monitors. The factory was finally closed down around 2000, and is expiring.

IMG_7259.JPG Osram_Oslon_SSL_80_Leds.png RFT_LED.png IMG_8190.JPG

Light Information

Light Information

Manufacturer:VEB Werk für Fernsehtechnik (WF), VEB Kombinat für Rundfunk und Fernmeldetechnik (RFT)
Model Reference:VQA46
Lamp
Lamp Type:Light emitting diode
Filament/Radiator Type:GaAs
Base:wires
Shape/Finish:orange tinted clear epoxy
Service Life:long
Electrical
Voltage:<2.6V
Current:I max 30mA
Physical/Production
Factory Location:Berlin GDR
Assembly Line:Werk für Optoelektronik ,VEB Werk für Fernsehtechnik Berlin DDR
Fabrication Date:c.1980

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Date added:Jan 14, 2020
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HomeBrewLamps
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SodiumVapor 105843202020668111118 UCpGClK_9OH8N4QkD1fp-jNw majorpayne1226
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Jan 14, 2020 at 12:33 PM Author: HomeBrewLamps
Nice lamp! I've been trying to find one of these old dimmer orange LED's for a while now but most vintage LED's I find are red and green.

~Owen

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Alex_lightning jurgenneandertal
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Jan 14, 2020 at 12:48 PM Author: Alex
https://www.ebay.com/itm/25x-VQA46-RFT-Germany-Clear-ORANGE-25-LED-Dot-Diode-5mm-30mA-610nm-2-6V-5V-/303226162379

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Jan 14, 2020 at 04:35 PM Author: takemorepills
Alex, you wouldn't happen to know what kind of semiconductor manufacturing equipment E. Germany was using at the time?
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