During my routine search for interesting auctions I found this auction:
https://www.ebay.com/itm/Burroughs-6844A-Nixie-Tubes-on-PCB-Sockets-Leads-w-Counters-6703-5814a/192682396566?epid=1825418631=item2cdcc40b96:g:Pf8AAOSw8U9burg8
The counter modules seemed suspiciously large, so I thought they
Jon
Sure give me a day or two to get it out of storage and i will post back.
GeckospotNixie
On Sunday, October 7, 2018 at 1:44:23 PM UTC-4, Jon D. wrote:
>
> GeckospotNixie,
>
> If Rich doesn't respond, I'd be interested in buying the board and
> variable transformer for $50 (but only the
Those are definitely beam switching tubes. Tom Jennings has a similar
version of one of those modules. This is a good price for a collector.
On Mon, Oct 8, 2018, 12:54 AM Tomasz Kowalczyk wrote:
> During my routine search for interesting auctions I found this auction:
>
>
*Jon* - Be sure to send a join-request to this group:
https://groups.google.com/forum/#!forum/hvps1-user-forum
I set this up for people who have the boards to ask questions, get the
documentation, etc.
Generally, all of the parts can be purchased from DigiKey, and you will
need to bend some
I'm using HV5122/HV5222 in all my applications, and im pretty sure most of
the microchip HV series are identical only differ in voltage and some
protocol types.
They can be driven at 5V, but 'm using a Level Shifter (CD4504) to shift
from 5 to 12V
How ever, one major issue with these IC's is
I was surprised, and definitely pleased, that I could get several
Mbytes/sec thru a virtual 8-bit I/O port I implemented on my RasPi
(basically, an arbitrary collection of GPIO pins) to connect to a local
FPGA using the WiringPi library, and compiled-C as the software. No
glitches found on
What Greg says (i.e. output a known fixed pattern), but also try getting it
working for just the first HV5530 in the chain initially. Then expand it to
two. Etc. etc. Do you have a scope? If so, look at the signals on the pins
from the Arduino and from the 12V side of the level shifter. Are
This is an area that can use some optimization,
I bit banged the 96 bits I needed on the atmega168.
I think it was actually faster than the spi hardware, and I could use any
GPIO pin i wanted.
On a more modern processor using the SPI HW with DMA or fifo would almost
certainly be better.
I did
Interesting. Using SPI on arduino works really well, but I've just realized
that the MISO/MOSI/SS/SCK pins are fixed on that platform(?) - I have been
using ESP8266 for a long time now and go to some lengths on that platform
to avoid interrupts while shifting data out.
I assume that it would
