Last word on the trigger clock, from me anyway:
Upping the anode resistors to 43k didn't work as expected. I finally
settled on the optimum value at 30k. I swapped the 50 minute tube with its
associated nixie driver tube. The ring counted just fine but the '5' never
went out - the tube was WAY
Bet that it's that stupid heart bleed thingamajig going around the web. I
suggest everyone change their password, with the exception of me. I've already
changed it.
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Nice to hear that ! Guess that's why the emphasized the aging process in
old neons used for logic. Guess that applies to triggers, too. Kinda makes
sense. Great Job ! I love seeing these things !
On Saturday, April 12, 2014 2:44:41 AM UTC-7, petehand wrote:
Last word on the trigger clock,
I know. Its just that it popped out, when I went to eBay, yesterday. They
want over $400, for a pair of relatively small speakers, that can't
possibly have sound to match that price !
I attend the annual CES show in Las Vegas regularly. I use to visit the
high end/audiophile rooms. A lot of
hi all, thanks for suggestions for this fault.. relay and capacitor
triedit was indeed cured by a capacitor [0.47uf 630v] without the need
for a relay.
now i have another question! i am trying to find why GR43 number 15 on the
schematic strikes as soon as power is applied and stays lit,
On 12 Apr 2014, at 20:01, threeneurons wrote:
I know. Its just that it popped out, when I went to eBay, yesterday. They
want over $400, for a pair of relatively small speakers, that can't possibly
have sound to match that price !
As a designer of more years than I care to admit, I see
I often use a classic 555 nixie power supply as I find they always work for me
and are very tolerant of any PCB layout abuse I submit them to in my infinite
ignorance.
My question is: Is there a simple way of switching a 555-generated timer off
from a 5v logic gate, as I would like it to go to
I just wanted to say how pleased I am with some little I2C modules that seem to
be sold everywhere by the Chinese. They work really well.
They have a DS3231 clock, with socketed battery backup including the
rechargeable battery, an AT24C32 memory with 4096 bytes of memory, all
necessary
On 12 Apr 2014, at 23:03, Michel van der Meij wrote:
Hi John,
I use the attached circuit in my ZX81 nixie clock and works great. On J7 pin
1 is the 12V input (mine is 9V btw). Pin 2 can be pulled down to gnd with an
open collector circuit which will then power up the 555 circuit. The
