Robert's Tech blog.
1/24/2016

I want Candy

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Yesterday we had Candy put down. Candy was my sister Pam's cat. Pam had got her some time around 2000 and about 2 years after Pam died...
1/17/2016

HP 54600A squished display problem, button problems and fix

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I bought a Hewlett Packard 54600A oscilloscope a year or so ago. Mine has screen burn in but was quite usable. It also had a problem with ...
1/11/2016

AJ6 Zephyr 7701 AM/FM refurbish

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I have been trying to get one of these for a while now but whenever they show up on ebay they tend to sell for more than I want to p...
1/10/2016

DOH!

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I was working on my 1989 Chevrolet C2500 truck. The temperature gauge was not working and so I figured the temperature sensor needed to be ...
12/10/2015

Remote Control USB SD FM MP3 Audio Player Module DIY

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11/27/2015

More El Cheapo FM mp3 players

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Here are 2 more AM radios I converted to FM/mp3 players. Motorola Magnavox    
11/01/2015

El Cheapo AA5 mp3/FM mod

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I had purchased several of these FM radio mp3 players: They run off of 12vdc, and have inputs for SD memory, USB sticks, and possibly e...
10/18/2015

Datsun Nissan Hitachi A-1561 A-1551 Stereo Car Radio

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I picked up one of these at a swap meet recently. I spent a lot of time trying to find information about this radio on line to no avail. I...
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9/20/2015

Multi plug Remote control module from a fan

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I had a Pelonis remote controlled fan that I got tired of having to re-oil every year or 2. I was intrigued by the remote control unit, and...
7/28/2015

Makita 5092D saw converted to corded

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I Picked up this Makita from a goodwill for cheap, it looked brand new with only a little sawdust on it. I do not have a battery or a char...
7/21/2015

Antique Radio Isolated Power Supply

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A couple years ago when I got in to this hobby, I wanted to free up some bench space taken up by my Dim bulb Tester, a volt meter, variac, a...
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