ErrataTitle & Document Type: 3438A Digital Multimeter Operating and Service ManualManual Part Number: 03438-90002Revision Date: May 1969About this ManualWe’ve added this manual to the Agilent website in an effort to help you support yourproduct. This manual provides the best information we could find. It may be incompleteor contain dated information, and the scan quality may not be ideal. If we find a bettercopy in the future, we will add it to the Agilent website.HP References in this ManualThis manual may contain references to HP or Hewlett-Packard. Please note that Hewlett-Packard's former test and measurement, life sciences, and chemical analysisbusinesses are now part of Agilent Technologies. The HP XXXX referred to in this document isnow the Agilent XXXX. For example, model number HP8648A is now model number Agilent8648A. We have made no changes to this manual copy.Support for Your ProductAgilent no longer sells or supports this product. You will find any other availableproduct information on the Agilent Test & Measurement website:www.agilent.comSearch for the model number of this product, and the resulting product page will guideyou to any available information. Our service centers may be able to perform calibrationif no repair parts are needed, but no other support from Agilent is available.