I sent you an email
On Thursday, September 2, 2021 at 1:59:40 AM UTC-4 LB wrote:
> The Hivac XN-2 can display the numbers 0 through 11, and is to my
> knowledge the only tube that can display two-digit numbers (excluding
> pandicons). I have 3 I'd be willing to trade away, please PM me if you ar
> I wonder why there should be no air gap?
Air gaps lower the inductance, but stabilize it and store energy in the gap.
Working forward from this, you generally find flyback type circuits use gapped
cores, and others generally instead opt for best coupling and highest
inductance.
- John
--
Wow Rich I have some panaplex and devices with them but the model you
mention is rarer it seems. I wonder if they were used in some arcade games
as I found a picture
here: https://www.andysarcade.net/store2/images/source/comp/disp05.JPG
You can see the common for digits on the right and one on
For mine I used one of those cheap eBay buck converters. 5v in, 1.x v out
(adjustable). 8 iv11 tubes, running for a few years without a blip.
If you needed AC, you could always just use an H bridge and a
microcontroller pin to flip it at a suitable frequency with a smoothing cap.
I found I couldn
You can use airgaps in transformers in some cases but this design should be
without one according to Ed.
I am using ferrite pot cores in some other designs where they are wound as
a transformer but where the Q-value is of importance and there I use an
airgap and also a trimmer through the cente
Martin,
I wonder why there should be no air gap?
- Paul
On Wednesday, September 1, 2021 at 1:55:30 AM UTC-4 Dekatron42 wrote:
> Paul,
>
> I'll ask him, but a quick search at Digikey showed both some RM10 and
> ETD29 cores, but only a few. Finding Ferrite cores today is not easy, I
> have sear
