[sdiy] SMPTE Time Code Reader—Need Generator

[Terry Bowman]

Edited to add image...

> On Jun 15, 2024, at 6:34 PM, Terry Bowman <ka4hjh at gmail.com> wrote:
> 
> The next question is how do I feed the audio into the gadget? Here's what the rear looks like:

Oops, no pictures on SDIY.  <facepalm>. Here it is

https://imgur.com/a/PypB9e9 <https://imgur.com/a/PypB9e9>


> What's with that five pin XLR? I assume it's the audio code signal input but what are the other lines for? The switches are power and frame indicator on/off and the auxiliary output is connected directly to some chips on the board.
> 
> I'm seeing multiple cathodes lit at once so it may also be the case that the LM74141 (Soviet K155ИД1) Nixie drivers are shot, no surprise there. And I broke a leg off of one of the chips while reseating them so I guess I'll have to scrounge around for a replacement. May have to be 74LS.


Terry Bowman, KA4HJH
"The Mac Doctor"

https://www.astarcloseup.com

Q: Should car stereo speakers be pointed to the rear for more thrust or up for more traction?

A. On long trips, the 20- to 30% improvement in gas mileage you might get with speakers pointing to the rear is certainly worthwhile. On the other hand, if you drive on snow or ice, the extra traction of speakers pointing upward gives you added control.

Don Lancaster

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