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Tag: tube

Posted on 2017-08-082026-03-16
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The Cicada: a push-pull vacuum tube amplifier build

Well, 2017 is more than half over now. This means I should probably post something to get at least one post in for this year. I’ve been meaning to doContinue readingThe Cicada: a push-pull vacuum tube amplifier build

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inside an EL84…

abram Posted on 2013-05-26

a close-up picture of the guts of a JJ EL84 with all it’s grids exposed. such a seemingly odd and fascinating device.

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solid-state tremolo for tube amps…

abram Posted on 2013-05-192020-07-27

i’ve have a CBS-era Fender Bantam Bass in for repair that looks like a bowl of spaghetti inside the chassis. it’s a slew of yellow wire spread from one sideContinue readingsolid-state tremolo for tube amps…

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the Triode: final build

abram Posted on 2013-05-02

final build of my take on the Mitsumin Valvecaster.

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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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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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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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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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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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