Amistar Corp., a San Marcos company that...

Amistar Corp., a San Marcos company that makes large electronic machinery used in the manufacture of printed circuit boards, reported a third quarter net loss of $38,000 on sales of $4.5 million, contrasted with a loss of $3,000 on sales of $3.8 million for the year-ago quarter.

For the year to date, Amistar has posted net income of $124,000 on sales of $14 million, contrasted with a loss of $44,000 on sales of $11.9 million in the same nine months last year.