Showing posts with label integrated circuits. Show all posts
Showing posts with label integrated circuits. Show all posts
Tuesday, January 23, 2024

IMSAI Guy Looks at Counterfeit Chips

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Like some of the commenters, I had been scratching my head wondering why someone would go to all the trouble of counterfeiting electronic pa...
2 comments:
Wednesday, October 4, 2023

Sunburst and Luminary -- A Poem about Transistors and ICs

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  Sunburst and Luminary by Don Eyles has a lot of the kind of color that helps the reader understand what was going on technologically duri...
1 comment:
Tuesday, June 20, 2023

Part 2: CuriousMarc Fixes an All-Discrete Counter -- "Like an IC, but in discrete form."

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Marc nicely sums up this project with this line:  "It's an IC but in discrete form!"  On the same theme, he later says, "...
3 comments:
Monday, June 19, 2023

CuriousMarc Repairs an old DISCRETE COMPONENT HP Frequency Counter

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I really liked this repair video from CuriousMarc (aka AJ6JV).  This counter pre-dates the use of integrated circuits -- it is all discrete ...
2 comments:
Monday, November 21, 2022

A Homebrew LM386 -- Does Anyone Want to Build It? Help Save Us All from the Indignity of ICs!

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  I recently commented that I was building a discrete LM386 for a Direct Conversion receiver.  I think I was exaggerating my project.  In fa...
8 comments:
Thursday, July 7, 2022

Would this Really Be Homebrew?

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  Hack-A-Day has an interesting post about an FM Broadcast radio project .  I took a look.  The Github page has the schematics for the hard...
16 comments:
Wednesday, December 29, 2021

My Kind of Chip: A Homebrew Discrete 555 Timer Built on Wooden Boards (video)

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This is really beautiful. Radraksha Vegad (Pargrahi) from India built a discrete component version of the venerable 555 timer chip.  He buil...
3 comments:
Sunday, August 15, 2021

Sam KD2ENL's Homebrew Integrated Circuit Chips

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Sam Zeloof KD2ENL does some really inspirational work on the homebrewing of IC chips.  We first posted about this back in 2018, when Sam was...
4 comments:
Sunday, January 31, 2021

Repairing My Maplin Audio Waveform Generator

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I picked this generator at the Kempton Park rally in London many years ago.  I use it quite a bit, not only for circuit testing but also as ...
7 comments:
Tuesday, August 25, 2020

Great Video on PC Board Techniques, with a Focus on Surface Mount

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Wow, lots of wisdom in this video from Leo Fernekes.  Great hints and kinks on prototyping with copper clad boards. I need a Dremel just s...
5 comments:
Tuesday, May 12, 2020

An Understandable Chip: The LM386

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Over the years I have made my distaste for integrated circuits very clear.  I've presented them as mysterious little black boxes th...
4 comments:
Wednesday, May 16, 2018

Youngest Homebrew Hero: 17 year-old Sam Zeelof Makes His Own Integrated Circuits

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Seventeen year-old Sam Zeelof, KD2ENL, is making his own integrated circuits in his garage.  Wow.  This makes me think about another se...
2 comments:
Sunday, April 8, 2018

AMAZING 1999 Video on the Invention of the Transistor at "Hell's Bells Laboratory"

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Thanks to Armand WA1UQO for alerting me to this.  I really liked the book -- "Crystal Fire" -- that this 1999 video is loosely b...
1 comment:
Friday, December 9, 2016

Great Hackaday Article on the Venerable LM386

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I'm not crazy about chips, but I've come to like the LM386.  It is not really a little black mystery box -- as the article points...