Apple-1 Components Temperature

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Borgmacgb's picture
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Apple-1 Components Temperature
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Hi,

I thought it might be of interest to share  the components temperature (Celsius)  that I measured with a small IR thermometer. I bought this after I burnt my finger testing some 74161 ;-)

FileApple-1 Temperatures Tests.xlsx

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Ouch

I dun know, 5300 seems a little hot. ;-)  (oh, 5300 uF @38C)

Small caps seem to be generating a lot of heat. And, of course, the 5v regulator

This is where Uncle Bernie's switching power supply mods really help. 

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5300µF high temperature
linuxha wrote:

I dun know, 5300 seems a little hot. ;-)  (oh, 5300 uF @38C)

My guess is that the heat from LM 323 5V regulator is causing that high temperature. The + side of the  5300 µF is only at 25c and the - side, close to the LM 323, is at 38c. I might try later on to put a heat screen to see the result.

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