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notes to self

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Author: abram

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Mistumin Valve Caster build…

abram Posted on 2013-02-162013-02-16

a tube overdrive build for Anthony of the The New Diet and The Regular Fucked Up People. it’s my take on the Mitsumin valve caster with the values i tendContinue readingMistumin Valve Caster build…

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no. 5 re-appropriation…

abram Posted on 2013-02-16

this is a re-appropriation of a Fender Frontman 15-B. it’s one 8″ speaker in a closed cabinet primarily designed as a really cheap bass amp to be included in starterContinue readingno. 5 re-appropriation…

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work in progress

abram Posted on 2012-12-03

early stages of a reverb effect pedal for guitar.

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goodbye

abram Posted on 2012-12-03

he’ll be missed by many. i consider myself fortunate to have known him.

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Fender Bassman AB165 filter replacement

abram Posted on 2012-11-22

some bad caps on a beautiful black-face AB165. i almost felt bad pulling the original parts out of it. forty-five years is a good run though.

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5W single-ended EL84 amp (before)

abram Posted on 2012-11-22

insides of a Fender 15B solid-state bass amp that i gutted and converted into a simple tube circuit. i constructed this several years ago, and it’s not been very functionalContinue reading5W single-ended EL84 amp (before)

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Carvin Pro Bass 200 iPod-Mod

abram Posted on 2012-11-152012-11-15

And here we have a solid 160W solid-state bass amp with an RCA input on the front. this amp was brought to me with the complaint of really low volumeContinue readingCarvin Pro Bass 200 iPod-Mod

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magniscope

abram Posted on 2012-11-152012-11-15

a quick way to light the helping hands.

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Ampeg SVT-CL Repair

abram Posted on 2012-10-242012-11-15

here’s a 300 watt Ampeg SVT-CL that i had on the bench today. a much different kind of amp from the 70s models that i’ve been more accustomed to workingContinue readingAmpeg SVT-CL Repair

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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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40m amp amplifier Arduino atmega328 atmel audio bash bjt breadboard circuit code cw delay digital effect effects electrical electronics homebrew lfo linux LM386 mellotronium music no. 5 opamp oscillator pcb pedal photos php pt2399 pwm radio rf schematic stereo stompbox synth tape TDA2040 tl072 TL082 tube

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