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Thursday, June 9

my other hobby Posted by Hello
9 Comments:
Blogger mw said...
ok. somehow i got that to work. but i lost the ability to post to the friends of lincoln blog. man that hello program is a piece of work.

anyways. Digital to Analog Converter in progress there. transformer on the left. power supply circuit in the middle and board for the DAC on the right. i need a box to house this thing.

eventually this device will decode the digital signal from a cd player. every cd player has a DAC of its own but this one will be an upgrade to the sound (i hope).

Blogger mw said...
the redlined schematic on the sheet is the drawing i used for the small board in the middle of the pic.

not alot of excersize involved in this hobby but you do have to use your brain.

Blogger mw said...
the complicated looking thing on the right was built from a kit that i ordered online. the kit came without a chassis or a power supply, hence the other stuff. i'll send a completed pic once i'm done.

Blogger Chaybo said...
loose fitting connections or do you solder everthing ?


sounds like an intense jigsaw puzzle

Blogger Wolfman said...
does it matter what kind of medium you use to house the converter? that's a very interesting project. as far as rewiring the record player, let me know when you are going to spin some vinyl, i'd be up to give it a listen!

Blogger debaser said...
What other things have you done? Speakers right? Amps? Enquiring minds...

Blogger mw said...
oh yeah everything is soldered. i'll send another picture when i'm done. the solder i'm using is 4 metals blended together. silver, copper, lead, aluminum. i think.

it is totally an intense jigsaw puzzle with research going into each piece.

i've got a cutting diagram ready to go at d.moore's place. custom sheet aluminum housing in the end. actually two boxes. one for the power supply and one for the DAC and an electronically shielded cable between the two.

i've built a few sets of speakers, a tube electronic crossover from a kit, this project, numerous mods to thads tube amp, mods to my main amps and subwoofer amps, fabricated my own interconnect cables.

Blogger bigmech said...
I might be able to figure out that diagram if water ran through it... That electrical stuff has always given me grief. MW, you have a sweet setup.

Blogger mw said...
i actually had to think of it as water. postive to negative allways. same thing sort of as from the main to the faucet.

that diode at the beginning is like a backflow preventer and reducer.