Hi,
Thank you for your reply David. My reason for multiplexing was due to not
having enough spare pins on the PIC, however having givin this considerable
thought I have the IO pins that were being used to switch the MSD and LSD
anode transistors and a third IO pin which was available to
Hi Tim,Not that I want to influence your design but it sounds a bit odd to have the nixies go from 0 to 63 in a valve (pre)amplifier. It is really related to something digital that IMHO doesn't really match a design of a valve amplifier. I think it is nicer if it would go from 0 to 99. If you use
Hi Michel,
This is a fare point, 0 - 99 would be allot nicer, I wonder if I should
just bite the bullet and use an IO port expander IC on the nixie display
PCB I dont think I have enough room spare on the PCB to implement the
latches unless I can do it with one IC (do you have any that come to
On 05/01/2013, at 00.03, Tim wrote:
This is a fare point, 0 - 99 would be allot nicer, I wonder if I should just
bite the bullet and use an IO port expander IC on the nixie display PCB I
dont think I have enough room spare on the PCB to implement the latches
unless I can do it with one
I would have thought that with 10 being the maximum loudness then having one
that goes to 11 for extra loudness would be marvellous !
For anyone who hasn't heard the joke
http://en.wikipedia.org/wiki/Up_to_eleven
John K.
- Original Message -
From: Michel van der Meij
To:
I would have thought that with 10 being the maximum loudness then having
one that goes to 11 for extra loudness would be marvellous !
For anyone who hasn't heard the joke
http://en.wikipedia.org/wiki/Up_to_eleven
John K.
Excellent point John. Audiophools will eat that up.
Given this extra information, your multiplexed design makes sense. As long as
you keep the Nixies physically distant from the amp input signals and tubes,
and give yourself the option of steel shielding if needed, you should be OK
with the Tayloredge supply and multiplexing.
David Forbes
