I've had the clock on for a few hours now without it going to sleep. The
worse case temperature I can measure anywhere is 55degC. Poly methyl
methacrylate PMMA "acrylic" is good to a working temperature of 80degC
and melts at 160degC. This doesn't deal with that case you describe with
the backs of the tube being far hotter. I'm using six "Valvo" tubes but
I'll get some other tubes out to try. At least I'm not dealing with some
cheap knock-off Chinese version ;^)
BTW Does any one on the list have an East German clone to sell or swap?
Grahame
-------- Forwarded Message --------
Subject: Re: [neonixie-l] Re: "The Fortress " an E1T clock coming soon...
Date: Mon, 18 Feb 2019 13:41:59 +0000
From: Grahame <[email protected]>
To: [email protected]
Right, I understand. I have switched off any sleep function in my test
clock that has been running 24/7 so the clock won't shut down when the
room is unoccupied and I'll come back in a few hours and check. The test
clock has the acrylic columns cut at 45 degrees compared to 22.5 degrees
in the photo, so more of the back of the E1T is covered.
Back later...
Grahame
On 18/02/2019 13:17, Dekatron42 wrote:
The ones I have that get hot do it closest to the base where the
heater wires enter the cathode and where they aren’t shielded. It
looks like the round acrylic tube is very close to the E1T, that’s the
part I wondered if it was too close.
/Martin
--
You received this message because you are subscribed to the Google Groups
"neonixie-l" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send an email to [email protected].
To view this discussion on the web, visit
https://groups.google.com/d/msgid/neonixie-l/2c779f86-93fb-7d57-7046-cc2495d04a62%40googlemail.com.
For more options, visit https://groups.google.com/d/optout.
