POWER SUPPLIES »VOLTCRAFT« CONRAD-ELECTRONIC / made in East-Germany (1980)
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RANGE:  0 ... 30 Volt, stabilized   /  0 ... 2.5 Ampere, Constant-Limiting
 
R E M A R K :   » TYP 2223 « is printed on the Unit - BUT ( for 120 DM )
-------------   as "TNG-35" market in CONRAD-Catalog / West-Germany

    Modified:   o  UNIT [A] (left) POTIS "U/I" replaced by Mini-HELIPOTS.
                   To "zoom" the LOW AMPERE RANGE for CHARGING Batteries,
                   a 100 Ohm-Poti is accessable on upper-right-top !!!
                o  UNIT [B] (right) KNOBS "U/I" replaced by COLOR ones
                   ( Bought 3 month later: PRINT on front had CHANGED !) 

POWER SUPPLIES have a "Rectangular Characteristic" ( U=const / I=const )
As a "High-Quality-Product" of East-Germany, the GDR got West-Money for !

                Have a Look at the WIRE DIAGRAM
                Back to "CLOSER LOOK HOW THE TELEPHONE DIAL SYSTEM WORKS"
impressum:
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© C.HAMANN         http://public.BHT-Berlin.de/hamann             01/01/01