172

1000 3/14

Ground terminals on Acc outlets on Ampex interface
removed from signal ground and placed on power line
ground. .1μf capacitors were put from each side
of 110 V line to ground on power controller output on
interface. Now, Turning III processor on & off and
an electric drill run from aux power outlets cause
No problems to Ampex Core

Ted Panofsky

1130 3/14/68

Found that Margin readings taken by J.G. On
3/7/68 and 3/8/68 on C.P. with T.S. Main were invalid
because of a misunderstanding of the program. Repeated
Margin & Tests using T.S. Main on 166, 1B through 1M

Ted Panofsky

1600 3/14/68

New heads put on DTA 1 + 2 and sandblasted
guides on DTA 1, 2, 3, + 4. DTA 1 tested w/exdata and
DTA2 tested w/exdata over 1/2 of a tape. Cables
for DTA 3 + 4 not yet reconnected

Ted Panofsky