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



For sale is reprint Precision Apparatus Company Tube Test data for testers: 10-12 10-15 10-20 10-22 10-54. Book is 28 pages, dated 03/01/1965 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If you purchased one of those testers from Ebay and it did not come with Tube Test Data or your roll is out of date, here it is.