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notes to self

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LM386 Square-wave Oscillator

abram Posted on 2011-06-132017-08-31

Here’s a small LM386-based square-wave oscillator built from the following schematic. I replaced the 30k resistor with a 50k Potentiometer from my stash of parts which then, of course, actsContinue readingLM386 Square-wave Oscillator

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No. 5 speaks.

abram Posted on 2010-08-082017-04-24

and what a lovely voice it is. even through a Crate speaker (i’m saving the better speakers for when the testing phase is over). overall, i’d say a success forContinue readingNo. 5 speaks.

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No. 5 come alive!

abram Posted on 2010-08-042010-08-08

like Dr. Frankenstein, it’s about time to bring this little fellow to life… or at least try. the schematic i have is a random luck of the draw internet find,Continue readingNo. 5 come alive!

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Typical Alkaline Battery Ratings

abram Posted on 2010-06-292010-06-29

Also posted on the 8088 Networks site. I was using this to create a small external power supply for my Yeasu VX-3R. I used a 9v battery initially and realizedContinue readingTypical Alkaline Battery Ratings

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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