Motorola R-20018 Manual page 198

f
J17
EXT 10 MH IN
'
z
/
10.0 MHZ
TCXO
lOR)
ovxo
U2.01
VOLT
E13
'
OVEN SUPPLY REGULATOR
,
AND
OVEN IND.
DRIVER
r
I
U1, 2
INTI EXT
~1
SWITCH
~E
OVER
DRIVER
'
SYNTH 10.0 MHZ ,
/
J1
EXT 10 MHz OUT ,
'
/
J18
LEO ANODE
'
/
E11
LEO CATHODE
'
/
E12
8521·21
Figure 19-1. Frequency Standard Module A13
Block Diagram