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History of the manufacturer  

Hung Chang Co. Ltd., Protek; Seoul

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Name: Hung Chang Co. Ltd., Protek; Seoul    (ROK)  
Abbreviation: hungchang
Products: Model types
Summary:

Hung Chang Products Co. Ltd.,
Head Office: 1st factory address: 310-222, Bulkwang Dong, Eunpyung-Ku, Seoul, Korea
C.P.O. Box 3125, Seoul (South-) Korea.
2nd factory address: 1385-14, Chooan-Dong, Nam-Ku, Inchun, Kyunggi-Do, Korea.

Measurement equipment

History:

This manufacturer was suggested by Fred Nerger.


Some models:
Country Year Name 1st Tube Notes
ROK  90 Digital-Multimeter HC-3500T   Digitalmultimeter mit Temperatur-, Frequenz- und Kapazitätsmessung. DC: 200 mV - 1000 V; ... 
ROK  85 Oscilloscope OS-620 DEP unknown_Tube  20 MHz dual trace oscilloscope. 
ROK  80 HM-101   Kleines Taschenmultimeter, analog. V=, V~, mA=, Ohm, dB. Ri: 2 kΩ/V=~. 
ROK  80 Multifunction Counter HC-F1000   Frecuencimetro y contador de pulsos/periodos desde 10Hz a 1 Ghz. 2 entradas de 1 MOhm y 5... 
ROK  88 Multifunction Counter HC-LF1000   Time period/frequency counter (10Hz - 1 GHz), 8-digit LED readout. 
ROK  80 Digital Multimeter HC-9020   Multimetro digital de taller, con enclavamiento de lectura. 
ROK  80 Oscilloscope OS-650 150CTB31  50 MHz Dual Trace Oscilloscope; CRT 10 x 8 cm; Vertical: 1 mV/Div - 5 V/Div ; Horizontal... 
ROK  96 Digital Multimeter Protek 505   Digital Multimeter with LCD dual display, 3 3/4 digit auto ranging and 4000 count. Ba... 
ROK  95 Protek 506   RMS Digital Multimeter 506 mit 3 3/4 Digit-Anzeige 3999 Besonderheiten: 3 3/4... 
ROK  96 Protek A803    
ROK  78 Multimeter HC-3030S   Analog multimeter. AC/DC 10/30/100/3001000V DC 3V DC 100µA/3mA/30mA... 
ROK  ? Sweep Function Generator 9205 C    

[rmxhdet-en]

Further details for this manufacturer by the members (rmfiorg):

Q: Hung Chang, Service-Unterlagen 1986tbn_rok_hung_chang_korea.jpg
tbn_rok_hungchang_adresses.jpg

  
rmXorg