156

144

too low, but probably ought to work.
amplitude at cp is 2.5 V.
Resistance of signal wire from CP to
516 is 15 Ω. This does not
explain why .7 V is lost.

MAG TAPE still doesn't work.

SRR

0645 4 JAN. '68

CORE 2 DROPPING RT. HALF...
REPLACED BALUN 1J13
(LAST SPARE!!). TROUBLE
MAY BE IN CONNECTOR, NOT BOARD.

D.W.P

1000 4 Jan '68

(Have been running machine diagnostics for the
last hour.) Are Running BLT.

Have cleaned the contacts on Balun board 1J13
(from CORE 2) and re-installed it. We have
run the BLT test ~ 10 minutes + have not had
a failure... WIll leave the original balun board
in 1-J-13-CORE 2.

J. Gleason