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

Wed, 02 Apr 2014 14:20:12 -0700

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. 

On 4/2/2014 2:01 PM, Instrument Resources of America wrote:

Upon further investigation in TCA's data cache, I find the following, 
0Z4 first registered by Raytheon on Oct 24th 1935 with a metal shell 
which tapered down in size as it got closer to the top of the metal 
shell, an 0Z4A first registered by Raytheon on Oct 15th 1956, with the 
standard metal shell. The index in the data cache lists an 0Z4G (no GT 
ever registered) but when I actually go to the same release number 
which is cited, the same as the 0Z4, there is no information there to 
be had on the 0Z4G. The only thing I can say is that I have an 0Z4G 
with 'tubular' glass envelope, not an 'ST' envelope, which is somewhat 
curious.  Raytheon receiving tube data book bears out the fact that 
their 0Z4G was in fact tubular glass and not ST glass. You would think 
that the nomenclature would have been 0Z4GT but it was not.  Go 
figure!!     Ira.



On 4/2/2014 1:20 PM, David Forbes wrote:

0Z4 is metal.
0Z4G is glass.
0Z4GT is glass, but tubular, not curvaceous.

On 4/2/2014 1:15 PM, Grahame Marsh wrote:


Isn't the 0Z4 in a metal can?

:D

On 02/04/2014 20:39, Tidak Ada wrote:

Nice! So a 0Z4G is OK, Thaen is the next sorrow to meet a minimum 
current of

30mA, needed for maintaining the conduction.
I love that 0Z4G!

eric


-----Original Message-----

From: [email protected] 
[mailto:[email protected]] On

Behalf Of John Rehwinkel
Sent: woensdag 2 april 2014 18:40
To: [email protected]
Subject: Re: [neonixie-l] Re: Trigger clock revisited


May be an open mercury vapor rectifier, like a 866 (not an 866A !) 
does

the same. If you can get one with lower heater consumption it is 
better for

your electricity bill.

Don't know what spectrum OSAGE rectifiers radiate. anyhow they 
have no

filament.

Any other small mercury tubes that could do the job?

Argon tubes also emit a useful amount of UV.  Maybe an ordinary 
AR-1 argon

bulb, or an 0Z4G rectifier?

- John

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