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Ham Radio

It’s alive, a little bit

[Today’s run: Watson Road 3.5 miles, yesterday: 1 mile]

I worked some on the nixie clock project today.

I have the 10 MHz GPSDO frequency standard running into a little picDIV  dividing down to 1 pulse per second.

I used my dremel with a cutting wheel and hacked the back half off of the nixie display board.  I liberated the decimal counters and created a pc board which would fit in the long socket.  I’m driving the display, 5+ and ground from the long socket.  For the nixie HV I’m going to a trace on the old board.

I was running two digits from a protoboard.  But now I have installed one of the decimal counter chips dead-bug style on my pc board and am  feeding it from the picDIV which is still on the protoboard.  My first attempt was all soldered in before I found that I had messed up the pin numbers.  And I was trying really hard not to do that.  I think I rescued that counter chip.  We shall see.

Now it is counting single-digit seconds very nicely.  You can see I’m using a lot of clip leads.

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