Re: [neonixie-l] Re: Trigger clock revisited

[Instrument Resources of America]

Hello Charles, It is there. 0Z4, 0Z4G, along with 0Z4A.This appears to 
be an oddity. As far as the JEDEC files in the TCA 'data cache' go the 
0Z4G is listed in the INDEX under "Main type", and references the same 
exact release number as the plain 0Z4 of #49. Upon opening up release 
#49 there is only data on the 0Z4 and nothing for the 0Z4G. I have 
looked in the RCA and Raytheon literature for the 0Z4G and find it in 
both places with an envelope of T-7, with a small shell octal base.  I 
went all the way back to RCA 'RC14' copyright of 1940 where I first 
found it listed for RCA on pg. 47.  If it EVER came out as a "G" version 
with "ST" glass I can't find any evidence of it at all, any where. The 
0Z4'G' that I have, along with other collectors, is with T-7 glass just 
as it is listed everywhere. Does anyone here have or seen an 0Z4'G' with 
ST glass??  Ira.


On 4/2/2014 6:55 PM, Charles MacDonald wrote:
On 14-04-02 05:19 PM, Instrument Resources of America wrote:
P.S. Maybe someone here can elaborate on why Raytheon numbered it as
0Z4G rather than 0Z4GT which would have made more sense, and adhered to
"industry tube standards".  As I do not have clue.      Ira.

I looked and could not find the G version in the JEDEC files.

My guess is that it really did come out as a G version, like a 6V6G, 
50l6G etc, but the tiny little bulb is of course much smaller than the 
"Bantam" (GT or T9 size)  Most G tubes had an ST bulb



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