If still available, I would be interested in 12.
Thanks;
-Bill-
From: alb.001 alb.001
Sent: Sunday, September 06, 2020 11:20 AM
To: neonixie-l
Subject: Re: [neonixie-l] Re: Source for Panaplex displays
I have a fair number of brand new in factory trays of Beckman SP-353 3 digit
1/2 inch displays at $10 each if anyone is interested. I individually test
them with my derma-wand to make sure they are neon filled and have never found
a bad one.
Thanks and my apologies for anyone who is offended by this.
Pharma Phil alb.001 @ sympatico.ca
---------- Original Message ----------
From: Richard Scales <rich...@scalesweb.co.uk>
Date: September 5, 2020 at 11:32 PM
Hello and thank you for the heads-up - I am looking for single digit SP-101's
to complete a project and sadly they do not have any, however, when it comes to
socket pins for these things, I have stumbled across what I believe to be the
ideal solution:
I too was looking at various socket pins from Harwin etc and worked out that
whatever I needed was not going to be a cheap solution.
By chance I had a stash of 'turned pin' IC sockets and found that the pins in
these were a perfect fit for the thin wires on the back of these panaplex
displays.
The solution was to clip these out of the plastic holders that made up the IC
sockets.
I designed a PCB to hold the pins but made the size of the holes so that the
socket end of the pin was nearly flush with the PCB. The data sheets are
available which detail the precise location of the pins which i backed up by
taking my own measurements.
The result - a perfect receipticle for these fragile devices.
I have used this technique for the panaplex which is a complete 'clock' face
ie 3 full digits and a 4th which can only display a 1 though there is also an
AM/PM indicator.
I love these panaplex displays and am always on the lookout for them.
Particularly the single digit SP-101 - just in case anyone has any!
I'm also on the lookout for ZM1350's from Telefunken but accept that these
are not so readily available these days (putting it mildly!).
The turned pin sockets are also available as 40 way SIL socket pins which I
have also released from their plastic surround to make panaplex sockets.
- Richard
On Saturday, 5 September 2020 at 23:55:41 UTC+1 bdu...@gmail.com wrote:
As a quick follow-up; it looks like the UHP495 might be useful to drive the
digits and/or separators of a nixie clock. The following doc discusses the 400
series part specs as 40v minimum drive and 500mA sink. So I think the UHP495
might be useful to switch digits or separators on and off, although not to the
full tube voltage.
- Bill
http://www.bitsavers.org/components/sprague/_dataBooks/1980_Sprague_Semiconductors_Short_Form_Catalog.pdf
On Saturday, September 5, 2020 at 6:33:45 PM UTC-4, Bill Duane wrote:
A saw a discussion earlier that some people were using the Sperry
(Burroughs?) Panaplex 7-segement gas displays. I stumbled across them for a
good price at:
https://www.electronicsurplus.com/sperry-sp736-opto-display-panaplex-neongas
They have 3 units of the 2-digit displays in stock, and several of the 1
and 1/2- digit display modules.
Also, they have some possibly interesting UHP495 high voltage driver
chips. I'm going to look up the specs on these chips, as they seem to have
quite a few, and they may be useful to drive standard nixies (as opposed to
their intended driving of Panaplex displays):
https://www.electronicsurplus.com/sprague-uhp495-ic-opto-display-gas-display-drivers
In addition, they have quite a variety of neon bulbs, some high
voltage-low RDS-on MOSFETs, and some other multi-digit Sperry gas displays; all
of which may be of interest to this group.
I am buying a few different Molex and other types of pins to see if any
would work nicely as nixie tube socket pins - I will let the group know if
anything ends up being useful.
I have not bought from them before, but hope they are reputable as I came
across a pointer to them on the AdaFruit site. It was sad to see that a number
of the links to other electronics surplus site went to out-of-business pages,
or dead links.
- Bill
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