My first Counter!! Uses 7490 and 7447 ICs, and a common anode 7-segment LED display.

[1513m]

thanks sir for this vedio!Hope a new vedio come soon!!!

[The1970sInfatuate]

Schweppes ginger ale...tastes horrible XP

[ExcellentScore]

I mean this in a good way, you sounds like a smarter version of george bush...

[rapedz25]

can you pls show me a drawing of a physical design of this. :)

[karlbox]

worked on this circuit too. but having weird displays. could anyone help me out? i know i got the circuit right. : (

[jrcstudios]

If you build a clock, use Nixie tubes, they are retro looking, Plus, you don't need the 7-segment driver chip, but a more rare high voltage driver chip instead! (or just a bunch of transistors) I have some cool old clocks that you would be interested in.. shall I make videos?

[CassetteMaster]

@jrcstudios Yes!

[RODALCO2007]

Very cool, cassette master.

I have built many of those TTL clocks over the years.

They are very reliable.

With more digits it is wise to put an 100nF decoupling capacitor in parrallel with each IC pos and neg supply pins.

[RODALCO2007]

Very cool, cassette master.

I have built many of those TTL clocks over the years.

They are very reliable.

With more digits it is wise to put an 100nF decoupling capacitor in parrallel with each IC pos and neg supply pins.

[sparkdetect]

Very cool...the possibilities with electronics are endless.

[firehandszarb]

looks like you are making a great into digital electronics

[eltonandlaurafan]

So cool!

[CoolDudeClem]

Cassettemaster's going digital! That's pretty cool and would be really cool if you make a whole clock someday. thank goodness there are chips for just about everything, just imagine how many transistors it would take if there were no chips available!

[ForgetfulCollector]

That, is really cool!

I'd like to try my hand at an AM transmitter on one of these.

[rf84]

Looks great! I really like the Digital Exerciser, it seems to be a useful tool.

To start the counter at 0 you need a reset signal. Disconnect pins 2 and 3 from ground and connect them together. When you now apply a pulse to the pins the counter resets.

[AllAmericanFiveRadio]

Great Rick! The More you learn about any circuits gives you the ability to interpret and understand other circuits.

[wilkes85]

HOLY SHIT!!!

[Pentium100MHz]

Nice. A clock is simple to make, though that depends on the chips that you have. I made myself a nixie clock using 4xxx chips and a lot of transistors.

To make a clock you need a pulse source, which can be made using a 32.768kHz quartz and a special chip that divides the frequency by 32768 giving 1Hz (1 pulse/second), then just make the counters in series, so the next one counts up when the previous one wraps around, just some counters will need to reset at 6 or 3.Use some logic gates for that

[sk7ca]

ohh, congrats CasetteMaster! :)

[artifactingreality]

nice job.

[DrCassette]

Very nice! I never thought it would be that simple to built such a counter. The only schematics I came across were using thousands of different parts. ICs really made a lot of things easier.

[umajunkcollector]

make a countup timer for the background of YT vids .