The Burroughs tubes I have contain the following symbols:
Hz
m
u
K
there may be others but that's all I can see
m
On Friday, March 22, 2019 at 4:11:51 PM UTC-7, Terry Bowman wrote:
>
> I'm interested in Nixies with symbols instead of numerals. I already have
> all of the Soviet ones.
>
> I've
>From my spreadsheet:
left side = A,D,K,M; right side = C,R,V,Ω
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Does anybody know what symbols these B-54364 tubes show, I cant find any
info online for them at all?
Dangerous game, offering free tubes on a collectors forum, like walking
into an AA meeting with a crate of beer... :-)
On Sunday, 24 March 2019 15:46:37 UTC, martin martin wrote:
>
> yes
>
Your photo shows a tube that is being deprived of high voltage. Looks the same
as when the high voltage powers down the 7971 tubes on a MOD-SIX. Since your
tube shows this condition in any position, I would be looking to see if there
is a segment that is bleeding/shorting to ground and
@Chuck: It is 6.3VRMS, so more like 8V after rectification, but yes I think
in reality it is a bit fine with load.
@nixiebunny: I haven't tried a Schottky bridge, just simulated one.
@jfeng: I hadn't considered a voltage doubler. I tried this
Not definitively. However, at least some of the RFT dekatrons have codes
that fit with a YWW date code (least significant digit of the year, two
digits for the week of construction within that year).
Jon.
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I'll have him try that next. Should be easy to do since the software
provides a segment test routine.
On Sun, Mar 24, 2019, 2:55 PM Thomas Kummer wrote:
> Does it do it when a particular cathode, or number is attempted to be lit?
>
> Sent from my iPhone
>
> On Mar 24, 2019, at 14:48, Kevin A.
Hi Thomas,
A106 is indeed a single guide, unidirectional tube. Pin 5 is the guide
electrode (usually called the transfer electrode on single guide tubes).
Like the OG8, but a selector rather than counter format.
Jon.
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Does it do it when a particular cathode, or number is attempted to be lit?
Sent from my iPhone
> On Mar 24, 2019, at 14:48, Kevin A. wrote:
>
> Yup, the same tube does the same thing when in a different position.
>
>> On Sun, Mar 24, 2019, 2:34 PM Nicholas Stock wrote:
>> If you move the
Yup, the same tube does the same thing when in a different position.
On Sun, Mar 24, 2019, 2:34 PM Nicholas Stock wrote:
> If you move the tube to a different position does it do the same thing?
>
> Sent from my iPhone
>
> On Mar 24, 2019, at 10:44, Kevin A. wrote:
>
> Here is a picture of the
If you move the tube to a different position does it do the same thing?
Sent from my iPhone
> On Mar 24, 2019, at 10:44, Kevin A. wrote:
>
> Here is a picture of the tube when it experiences failure.
>
>> On Sun, Mar 24, 2019, 1:43 PM Kevin A. wrote:
>> Hi guys,
>>
>> I've got a friend who
I'm surprised that you can't just use the Schottky diode bridge, a rather
large filter capacitor and an LDO regulator chip. What components are you
using, and what's the lowest voltage you see at the input to the regulator?
On Sun, Mar 24, 2019, 10:27 AM Dekatron42 wrote:
> In the circuit with
Hi guys,
I've got a friend who has an 8971 clock. When the clock is first powered on,
the tubes work fine. 10 seconds into running, the last tube (in position 6)
starts fizzling out. However, when you turn the clock off and on again, the one
tube repeats the same failure mode after 10 seconds
In the circuit with the FDMQ8205 that you refer to they are connected in a
POE circuit (Power Over Ethernet) where they make use of DC-voltages for
the power and AC-voltages via the transformers for the data-transmissions -
so the FDMQ8205 actually only work as polarity protection in that
A typical 7805 regulator drops out at around 7.5 volts at the input.
You'll need a little more overhead than 6.3 volts.
That, in my humble observation, is trying to cut it too close.
-Original Message-
From: "Paul Andrews"
Sent 3/24/2019 7:46:22 AM
To: "neonixie-l"
Subject:
yes
that's the same ones I have a box of
How many do you want? Free. just cover shipping.
On Sun, Mar 24, 2019 at 8:43 AM Kevin A.
wrote:
> Here are some odd Burroughs symbol tubes I found on ebay;
> https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F252453265409
Here are some odd Burroughs symbol tubes I found on ebay;
https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F252453265409
On Sat, Mar 23, 2019, 6:50 PM Mac Doktor wrote:
>
> > On Mar 23, 2019, at 6:17 PM, SWISSNIXIE - Jonathan F. <
> jfrech...@gmail.com> wrote:
> >
On Sun, Mar 24, 2019 at 7:07 AM martin martin wrote:
> Hello from California
> I have a box of about 190 Burroughs symbol tubes.
> You are welcome to as many as you need.
>
> I’ll send the part no when I am back in the workshop
>
> Martin
>
> --
> You received this message because you are
If I had to use the 6V transformer, I would make a voltage doubler.
Then I would use the switching mode regulator in a USB car charger adapter
to produce the regulated 5V. My Dollar Tree carries them. Sometimes,
Fry's has these for under US$1. Or you can probably find one at your
I want to create a 5V/1A regulated power supply from a 6.3V RMS input. I
can get a regular diode bridge in a 4 pin DIP package, but it is marginal
and my simulations and actual tests show that the forward voltage drop is
too much under even a light load. My simulations show that a Schottky
Hello from California
I have a box of about 190 Burroughs symbol tubes.
You are welcome to as many as you need.
I’ll send the part no when I am back in the workshop
Martin
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