Posts Tagged ‘Precision 920’

Posted on July 29, 2010 - by Vintage Tube Admin

Precision 920 Tube Tester

This tester includes “Set Analyzing” functionality.   I adapted a new GE NE-30 neon shorts indicator bulb.  This is an equivalent neon bulb, but the base is much larger.  I had to build a socket for the new bulb.  Unless you look under the deck, you’d never know that the neon bulb is not original.  I built a replacement 4.5 volt battery for the ohms testing using three AAA batteries.  It works just fine, but ohms testing is not accurate.