Monthly Archives: November 2017

Texas Instruments TL494C PWM Control Circuit

The TL494C is a pulse width modulation control circuit, designed for power supply control, from the small power board on a clamshell iBook from 2000. I have read the datasheet a few times and find it a quite complicated device. … Continue reading

Posted in Die Photo | Tagged , | 6 Comments

Maxim MAX675 Voltage Reference

Do you remember the clamshell iBook from around 2000?  In my opinion it was one of Apples best ever products. Rugged and one of the first laptops with mass user appeal. I used one for several years, it was a … Continue reading

Posted in Die Photo, Teardown | Tagged , , , , | 1 Comment

My Silicon Decapsulation and Die Photo Process

Important Disclaimer:  Chip decapsulation involves using hot concentrated acids.  It should only be done by persons experienced at working with acids safely. This article is for entertainment/education please do not try this at home. I have had readers ask to show … Continue reading

Posted in Other | Tagged , , , | Comments Off on My Silicon Decapsulation and Die Photo Process

Submersible LED Light Puck

Not vintage, but LED light teardowns seem to be popular.  This one is a submersible LED light for use in your bath, hot tub, vase.  It is available on eBay for ridiculously low prices eg. $3.39 with free shipping I … Continue reading

Posted in Teardown | Tagged , | 1 Comment