[volt-nuts] Neon bulbs for HP 3420B or 419A chopper

[David C. Partridge]

An update the A2B neons didn't work, but:

George Kerber sent me a few GT-NE6H1925T neons.  I pulled two out the packet and installed them in the chopper, and wonder of wonders the correct waveform appeared at the test point.

This is a great step forward.   The earlier neons I tried had way too low a firing voltage so both fired.  These fired at about 95-100V with a sustain at about 68V and do alternate.

Dave

-----Original Message-----
From: volt-nuts [mailto:volt-nuts-bounces at febo.com] On Behalf Of David C. Partridge
Sent: 18 November 2017 14:08
To: 'Discussion of precise voltage measurement'
Subject: Re: [volt-nuts] Neon bulbs for HP 3420B or 419A chopper

I'm in the process of getting some A2B neons from Mouser.

Dave