POWER SUPPLIES »VOLTCRAFT« CONRAD-ELECTRONIC / made in East-Germany (1980) ************************************************************************** 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: ************************************************************************** © C.HAMANN http://public.BHT-Berlin.de/hamann 01/01/01 |