Hi
I've been designing an IV-9 alarm clock using all 4xxx CMOS. With little
IV-9 experience ( I only have a one digit IV-9 clock that is working )
I'm adding a motion sensor and PWM brightness in the hopes it will
extend the life of the filaments.
I'd be interested in one of your clocks.
Are they these bubble lights ?
https://www.youtube.com/watch?v=qTDtyFaAZy8
On Sun, Nov 20, 2022 at 1:07 PM Mike Mitchell wrote:
>
>> Terry, I remember those bubble lights at grandparents farm. I had
>> started to look into buying some many years ago, but never did...
>>
>>
>>
--
You
Yeah. Apparently they still make them, too.
On Sun, Nov 20, 2022, 7:14 AM Adrian Godwin wrote:
> Are they these bubble lights ?
>
> https://www.youtube.com/watch?v=qTDtyFaAZy8
>
>
> On Sun, Nov 20, 2022 at 1:07 PM Mike Mitchell wrote:
>
>>
>>> Terry, I remember those bubble lights at
I made an IV-9 based clock some years ago which was featured in the Nuts &
Volts magazine September 2016. I used 4511 BCD to seven segment decoders with
latch function to drive the tubes directly. An HC164 shift register is clocked
by a mpu to make sure the data gets to the correct tube. The
Bill,
I just read the article on nuts and volts, looks nice!
I must have misread the IV-9 datasheet initially.. I didn't see it listed
values up to 4.5v. The 3.15v it refers to may just be a mid point nominal
value or something.
Looks like you are driving the tubes at 5v. The optional jumper
Wait for them to show up on ebay or by chance someone here who has some
offers you some for sale based on this post
On Sun, Nov 20, 2022, 5:31 PM Chris wrote:
> Hi,
>
> I am looking for a set of numitrons like the DR2000 round top, IV9 or
> equivalent.
>
> I am also looking for 1 piece of the
Bubble lights.
I remember when I was trying to get them and finally found them cheap on
christmascentral.com
They have them for Halloween as well (diff colors).
Example:
https://www.christmascentral.com/pack-of-3-multi-color-c7-retro-bubble-light-replacement-christmas-bulbs/
$7 for 3 pack.
Hi,
I am looking for a set of numitrons like the DR2000 round top, IV9 or
equivalent.
I am also looking for 1 piece of the DT1705C as i already have 5.
Does anyone know where to get any of these?
Regards,
Chris
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On Sunday, 20 November 2022 at 22:45:36 UTC tntm...@gmail.com wrote:
> Wait for them to show up on ebay or by chance someone here who has some
> offers you some for sale based on this post
>
> On Sun, Nov 20, 2022, 5:31 PM Chris wrote:
>
>> Hi,
>>
>> I am looking for a set