Monthly Archives: April 2017

Bell ExpressVu Satellite TV Set-top box

This is a an ExpressVu 4100 set-top box from around 2006:- The 4100 was (According to Wikipedia) the last SD set-top box that Bell used, getting discontinued in 2012. Opening it up, there is a single large (20.6cm x 18.6cm) … Continue reading

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(Philips) 74HCT08

I came across this 74 series logic chip in a 2006 satellite receiver box I am looking at. It’s 4 AND gates – thats it, as ic’s go they don’t get any simpler.  The HCT stands for High speed, CMOS, … Continue reading

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Whirlpool Stove Control Board

A friend offered me this stove board, after he had to replace it.  This board is expensive over $300 – I guess they can almost charge what they want, profit margins on appliance repair components must be very high. I … Continue reading

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LM358 Dual Op-Amp

The LM358 is a widely used low power dual op-amp that is still made and sold by several different companies. This one was made by STM. The die is a 1mm x 1mm square and contains just 26 transistors, a couple … Continue reading

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