Precision Tube Test Data for 10-12 10-15 10-20 10-22 10-54 Tube Testers 2-1-1976



For sale is reprint Precision Apparatus Company Tube Test data for testers: 10-12 10-15 10-20 10-22 10-54. Book is 43 pages, dated 02-01-1976 for use with Roll Chart MRC F2B.

If you purchased one of those testers from Ebay and it did not come with Tube Test Data or your roll is out of date, here it is.