00317nam a2200133Ia 45000030006000000080041000060400015000471000018000622450055000802500010001352600009001455460012001540050017001660STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aWarring, R.H.  aUnderstanding electronics with 32 working circuits  aFirst  c1980  aEnglish20220125170211.0