Hello,
chart recorder kipp and zonen bd40, perfect for longer term evaluation of circuit stability and noise
A kipp &zonnen model db 40 chart recorder is available @
formatting link
e=STRK%3AMESE%3AIT&rd=1
Unit tested and works great..
Kipp and Zonen BD40 Single Pen Chart Recorder chart speed from
10mm/sec-.1mm/min, adjustable pen speeds, manual pen controls and rear communication ports. . Power: 120v, 50/60Hz. power cord included.