Category Archives: Circuits and Electronics

Series telecaster wiring, stock 3 way switch

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Passive headphone level mixer

My old guitar amp doesn’t have a line in jack to allow me to mix my guitar signal with an audio source as a backing track.  To remedy this, I created my own mixer.  More details here:  http://www.ssguitar.com/index.php?topic=4028 The short … Continue reading

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More K-20X mods!

I finally added a “kick stand” to the little guy. I used a brass rod, a cable clamp and two screws. All stuff I had laying around. The bar is from our bed’s headboard, our Son dismantled it when he … Continue reading

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I finally did it – IEC jack mod

I’ve been considering removing the attached power cord from my Dean Markley K-20X amplifier and putting in its place an IEC jack with fuse.  I finally did it last weekend.  Not only does this allow for quick cord replacement, but … Continue reading

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Motorola Moto X – Assembled here, now owned elsewhere

Motorola was a US owned company.  Google bought it 2 years ago, so it was still a US based company.  Now Google has sold Motorola Mobility to Lenovo, making it a Chinese company.  Interestingly though, the Moto X phone is … Continue reading

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Digispark bike speedometer

Lately I’ve been thinking about doing an Arduino or similar based project.  I heard about the Digispark (which is basically a mini Arduino) from AwkwardEngineer.com and was intreagued.  I’m thinking of using a Digispark to drive a I2C 4×7 segment … Continue reading

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Senasys – Made in USA snap discs

I need a snap disc that would open at 95F and close at 85F for the rack at work (triggers a shutdown of all equipment in the rack at 95F).  Senasys turned out to have the perfect solution.  Their switches … Continue reading

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Updated LM317 fan controller

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12v Fan Controller v1.2

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New 12v Fan Controller

This is my latest fan controller, based off a LM317 regulator.  It can be adjusted from fan turn on at 64F and max speed at 131F up to turn on at 104F and max speed at 167F.

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