#1539

[@stamasd8500]

The 4007 is very versatile. Beside unbuffered invertors (useful for crystal oscillators) and other logic circuits, it can be used for analog applications. I have made in my youth a few interesting things using it, like an opamp and a balanced modulator.

[@kensmith5694]

Yes, it can be wired as various analog switches to make demodulators.

[@kensmith5694]

IIRC, The CA3600 is basically the same as the CD4007. The part was extremely useful but sadly not many people worked out all the clever ways to use it so it went away. Also: In bipolar arrays, you can get a nondocumented operating move by biasing the substrate diodes slightly on. It makes the transistors work a little like SCRs so that they latch if the base impedance is high.

[@Squantor]

If you are going to make some circuits with the 4007, look at the CA3600, it is the same (probably) chip but then meant for analog applications, it has some interesting circuits to try out. The full opamp in the datasheet is interesting.

[@tvelektron]

Interesting information - mainly because the 4007 is still inexpensive to obtain

[@barryyoung6159]

Great choice to show off in a video, cheap, versatile and easily obtainable 🙂

[@TheDiveO]

fets with compliments

[@plemli]

Here are some complimentary complementary FETs.

[@audiofreq]

"Everybody loves chip of the day" - Marcus Aurelius

[@Cristi4n_Ariel]

"Disturbance comes only from within - from our own perceptions" My favorite quote from him.

[@audiofreq]

@@Cristi4n_Ariel my favorite quote from him was "chickity china of the chinese chicken, you have a drumstick and your brain stops tickin".

[@knarf802]

I love chip of the day.

[@newoldbrain]

I don't get it. How's that demo circuit not inverting the input signal? The top MOSFET is P channel, the bottom N channel. When Vin raises, the top one conducts less and the bottom one conducts more, so Vout should go down. It's the classic CMOS inverter, after all, apart from current limiting resistors.

[@RixtronixLAB]

Nice info, thanks for sharing it, keep it up :)

[@luisfhm007]

You should really do a curve trace of a component and go beyond its limits to see how it fails, I'm guessing it won't be failing spectacularly, but it will be very interesting to see it!

[@IMSAIGuy]

guess that would make a good video. It is somewhat interesting to look at the curves when they die. they do release magic smoke.

[@campbellmorrison8540]

A Tektronics curve tracer is on my wish list but they are very rare in New Zealand

[@SuperRealhigh]

Hey, Can you do a review of the open source solder station "unisolder" ? And maybe some advice if it's worth it ? Thank a lot

[@LianPo-wb3mq]

Great lesson well explain. I have two business projects one is to make 4mA to 20mA temperature transmitter and creating a variable frequency drive circuit from scratch I would like assistance in both projects can I reach you so that we can discuss?

[@IMSAIGuy]

That is something I do not do.

[@LianPo-wb3mq]

@@IMSAIGuy okay, thank you.