HP 400D Operating And Service Manual

nlf
OPERATING AND SERVICE MANUAL
(HP PART NO. 400D/H/L-903}
MODEL 400D
SERIALS PREFIXED: 310-
MODEL 400H
SERIALS PREFIXED: 313-
MODEL 400L
SERIALS PREFIXED: 313-
AND
SPECIF. HO2-400D
SERIALS PREFIXED: 310-
VACUUM TUBE VOLTMETER
Appendix C, Manual Backdating
Changes, adapts this manual to:
Models 400D/H02-400D, Serial Nos. 313-28977 and below
Models 400H/L, Serial Nos. 310-52371 and below
Models 400DR/HR/LR, _All Serial Nos.
Copyright Hewlett-Packard Company 1961
P.O. Box 301, Loveland, Colorado, 80537 U.S.A.