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The
B
oat
A
nchor
M
anual
A
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Path: /national/hrops/

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info:

Manual for the National Power Units, Types 686, 697 and 1286 (typically for the early HRO
receivers - see also pages 23 & 24 of the HRO-7 manual as this gives component values and 
schematics for the 686S and 697 units.
Compliments of Ron, gw6wrp.
 
 

Files:

HRO Manual_FULL.pdf
(9.7 MB)
National pwr supps 686 - 697.pdf
(630 KB)