What workbench? You can just work on a pile of random PCBs

Jim achieved great designs no mater how disorganized his bench looked from the outside, sure he spent all his time designing not cleaning.

His bench gave me inspiration to keep mine the same. I look at it this way. I'm always within arms reach of anything I could need.

May the forceps be with you.

​@@stamasd8500 and U2!

if you are a quick solderer you can get away with it. But i'd use a sacrificial protoboard.

I always use a solderless breadboard for this. I solder the 2.54mm header pins first and then place the part. No need for a vice/vise. Furthermore. for DIP adapters I use turned pin machined headers rather than the square pin headers because they slide in and out of the breadboard much more easily, particularly when you have more than a few pins. For SIL I still use the square pins for mechanical rigidity. For soldering the part, I use a flux pen on all pads and solder on corner pin as an anchor, orienting appropriately under a stereo optical microscope. For larger parts, I also solder the diametrically opposite pin too before doing the rest of the pins. Typically I clean the boards in an ultrasonic cleaner too to get rid of any ionic contaminants which will affect hi-z circuits. Residual flux can leak at ITRO 1uA/V. I then use a labelling machine with a 6mm two line label to label the device for future use.

different pinout? why didn't they standardize these things

@IMSAIGuy maybe it's related to functionality or maybe they don't care😁

It's not a great op amp by any right, it's a direct descendant of LM324. But if it works for your circuits, that's fine 😊

Motorola always went its own way with package designations. The designation was typically 2-4 alphanumeric characters followed by a dash and another 2 or 3 characters, then a "STYLE" designation. I have a ton of old Motorola data, but it is stashed away. I did find one SOT-23 device, the MDC1000BLT1 (an interesting "MOSFET Turn-Off Device with Integral Gate Clamp"). From the datasheet: _MDC1000BLT1_ _CASE 318-07, STYLE 22_ _TO-236AB (SOT-23)_ On the same datasheet a TO-226 (TO-92) is "CASE 29-04,. STYLE 33" A TO-261AA (SOT-223) is "CASE 318E-04, STYLE 6"

I reached the point with SOT-23 where I was muttering "Jeez these things are big and clunky!"

most will use an arduino: brettbeauregard.com/blog/2011/04/improving-the-beginners-pid-introduction/

best have than need, I like it!

They also make SOT23 adapters for 3-terminal devices where all the connections are brought to one side only. Add a triplet of 90 degree connectors, and you can use it almost like a TO92 device. I use those.

The SOT-23 is a remarkably big and and clunky package in comparison with some. Before I quit doing this stuff I developed a fondness for dual transistors in a 6-pin thin SO package, the designation of which I can't recall. It occupied less board area than a SOT-23. I could get two devices placed on a PCB for the same cost as one and use the part as either two transistors or a transistor and a diode (convenient for driving a relay).

this might help: kzfaq.info/get/bejne/fOB4Y7l2x6-bpYU.htmlsi=_6OU_8X82VxrE_iZ opamps can be amplifiers, integrators, current sources, lots and lots of stuff: kzfaq.info/get/bejne/pbpxa7OfraiRpI0.htmlsi=kcaUs23E0aXhxbq7

eBay and Aliexpress

Patreon will allow you to subscribe , then unsubscribe. It will ask you why you want to unsubscribe, and one of the answers you can give is "I only wanted to make a one time donation" (or something to that effect).

@W1RMD Yeah, that's what I did last year. I didn't want to be a quitter again. Do you know if youtube takes a big cut of the donations made through the super-like option, which I've seen in some channels?

not sure@@jspencerg

I can solder SMT without any visual aids. My secret - I am very nearsighted. In this case that helps because it's like I have a magnifier glass built into the eyes. For everything else it sucks though. :)

@@stamasd8500 He's five years ahead of me. I'm trying to set goals.

yes, all opamps are

@@IMSAIGuy Only for sufficiently large signals. For example, if you're using a unity gain buffer with an opamp having a gain-bandwidth product of 1 MHz and a slew rate of 0.4V/μs, then a 2V pk-pk sine wave will indeed be slew rate limited at around 64kHz, but any signal less than about 120mV pk-pk will be bandwidth limited to 1MHz.

full analog design?

+1 for full analog :)

@@IMSAIGuy Whatever you could provide in term of theory or demonstration on PID is appreciated.. Also Please let every one know if there is a SOC for PID.. Thank You..

@@salehsalehi8955 lots of people are just going to use the Arduino PID library: brettbeauregard.com/blog/2011/04/improving-the-beginners-pid-introduction/

and yet you give me a comment. thanks!

SMD hater ? 😅

Thank You! you are the first person to ever tell me my bench was too clean 😂

kzfaq.info/get/bejne/fJp0edFnqNq5lac.htmlsi=6-vuG11fqiLo0FQc

Maybe, compared to modern rail-to-rail CMOS amps. But when they came out, the LM324/LM358 opamps were so useful because they could accept inputs as low as several hundred millivolts _below_ the negative rail, which was a godsend for small signal, single-rail applications where it didn't matter if they couldn't swing anywhere near the positive rail.