Keithley 502A(Model502A) free download

File name 502A(Model502A).pdf

,.- -_).-.I I__-. CONTENTS MODEL 502A CONTENTS section Page SPECIFICATIONS _______-______---___--------------------------------- iv 1. GENERALDESCRIPTION ---------------_--__------------------------ 1 2. OpE~TION _____----__-------_---------____----______________--- 3 3. CIRCUIT DESCRIPTION ------------------__-------_--------------- , 4. SERVICING ___------_-------------_---__-----------------------_ 9 5. C&IBuTION ____---___------_-_--------------------------------- 12 6. REPLACEABLEPARTS -___------_-----____I___________________--- 15 $,cHEmT'C ____________________-------------------------------------- 21 PRINTED PEB 75 0275 MODEL 502A ILLUSTRATIONS ILLUSTRATIONS Fig. No. Title Page 1 Model 50&j ),filli&met,ar _______------_____----------------- 1 2 Front Panel Controls and Terminals ------------------------- 2 3 Four-Terminal Input Connections --------------------------- 3 4 Circuit For Blocking Capacitors Across Samples ------------- 6 5 Correct Waveform at Grid of Tube V102 (Pin 4) ------------- 10 6 Correct Waveform at Plate of Tube V102 (Pin 1) ------------ 10 7 Correct Waveform at Grid of Tube VlO3 (Pin 4) -------------- 11 0 Correct Waveform at Plate of Tube V103 (Pin 1) ------------- 11 9 Correct Waveform at Grid of Tube V104 (Pin 4) -------------- 11 10 Correct Waveform at Plate of Tube VlO4 (Pin 1) ------------- 11 11 Correct Waveform at Grid of Tu