APPENDIX A
MANUAL BACKDATING CHANGES
To adapt this manual to Model 6236A or 6237A instruments, make the changes indicated in the table below.
CHANGE 1 :
Delete R76, R77, and all references to the variable tracking
ratio feature.
CHANGE 2:
Change potentiometers R1 and R41 to 10kΩ panel-mounted
type, HP Part No. 2100-1854.
CHANGE 3:
Delete ferrite bead L3, 9170-0894, from the lead of diode
CR49.
A-1
MODEL SERIAL NUMBERS MAKE CHANGES
6236A ALL 1
1507A-00141 thru -00350 2
1436A-00101 thru -00127 3
6237A ALL 1
1511A-00101 thru -00170 2