Most of our clocks have been temporally set to out of stock. Their main ingredient is the 74LS90 BCD chip. The last batch of these chips that we got are very different than the same chip from a few years ago. The propagation time or the parasitic capacitance in these newer chips is so different that it caused our clocks to do all sorts of strange things. All of the clocks that use this chip will remain out of stock until we can get the bugs sorted out. Sorry for the inconvenience!
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74LS90 Binary Coded Decimal Clock$25.00 -
6 Digit Hewlett Packard HDSP Clock Soldering Kit, now with USB-C!$35.00 -
4 Digit Hewlett Packard HDSP Clock Soldering Kit, now with USB-C!$35.00 -
7 Segment 6 Digit LED TTL Logic Clock Soldering Kit, now with USB-C!$45.00 -
CD4017 Digital Logic Clock 2.0 Surface Mount DIY Soldering Kit$25.00 -
Hewlett Packard 5082-7010 Numerical LED Clock Soldering Kit, now with USB-C!$40.00 -
ILC1-1/8L Jumbo Vacuum Florescent Display Clock Kit without tubes$73.00 -
VFD Layer Clock Soldering Kit$95.00 -
The CD4017 Decade Logic Clock Soldering Kit, Inkjet printed PCB Style 2$40.00 -
The CD4017 Decade Logic Clock Soldering Kit, Inkjet printed PCB Style 1$40.00 -
The CD4017 Decade Logic Clock Soldering Kit, Black PCB$34.00
