54

Traded 6 with 7.
But 6 (2DE11) was microphonic, Traded
it with Bit 7 (2 DE 12) Machine worked.
Run margins up and down
Banded on boards, ets, bugs didn't
returned.
Found that wiping core. 3 if [4&5?]
borads hard caused [arts?] 3 & 4 to be
dropped when running disk & having
[cp?] ok split cycles, couldn't make it
go away. Checked sockets, changed
cards, punched connectors, no trouble
[founed] trouble not there. Probably
not related to " 533 bugs"
Machine back lot 0230
SRR
26 Jan.
Type 30 goes away randomly when running it
will come back again when [---------?]
Can't tell if [Hardered?] or softwood
[Pingle?]
12:00 1/26/67
D+A Dries 6 and 7 now have [graded?] with
no anodizing on the surfice. After instalation
ran DECTAPE Test with a static tape No Errors.
Fred [Pa------?]