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notes to self

a document of a plodding mind

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Tag: schematic

Posted on 2017-09-012026-03-16
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Basic Voltage-Controlled Amplifier

I’ve been looking at the theoretical principles that govern the voltage-controlled amplifier (VCA) recently and came across some simple VCA designs that caught my attention. A common technique involves aContinue readingBasic Voltage-Controlled Amplifier

Posted on 2014-09-162026-03-16
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DOD FX55B SupraDistortion – BigBuff Mod

Here’s another in a line now of DOD pedal mods. For this FX55B, I decided to go for more of a BigMuff sound. Playing around with this pedal initially, IContinue readingDOD FX55B SupraDistortion – BigBuff Mod

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TDA2040-based amp schematic with EQ…

abram Posted on 2012-06-04

well here’s the first draft of the simplest medium powered solid state design i could muster. TL082 can easily be substituted with a TL072 which is probably better anyhow (iContinue readingTDA2040-based amp schematic with EQ…

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Bending notes with PT2399…

abram Posted on 2010-11-282010-11-28

i’ve been experimenting with this PT2399 chip and using various schematics to create a digital delay circuit. the delay time seems to be directly attached to the sample rate sinceContinue readingBending notes with PT2399…

about

Abram Morphew is an electrical engineer, bedroom musician, composer, naturalist, and amateur scientist. I play music in the the binary marketing show. This blog is a catalog of stuff that I make or bits of information that I think could prove useful later on when memory fails me.

 

I currently hold an Extra Class Amateur Radio Operator license and transmit on the air as K2NXF.

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