Picked this thing up for 500 burgerbux from some guy. Made no noise at first. Been working on it off and on for the past couple months.

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File: 1574059348968-0.jpg (736.13 KB, 4032x3024, 4:3, IMG_20191112_130309.jpg)

File: 1574059348968-1.jpg (2.44 MB, 4032x3024, 4:3, IMG_20191117_223134.jpg)

Fixing 50 Year Old Electronic Shit: Organ Edition Anonymous 11/18/19 (Mon) 06:42:29 No.220

Picked this thing up for 500 burgerbux from some guy. Made no noise at first. Been working on it off and on for the past couple months.

Anonymous 11/18/19 (Mon) 06:44:36 No.221

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First thing I did was a general cleanup. The key contact bars were pretty corroded so I hit them with some rubbing alcohol and emery cloth.

Anonymous 11/18/19 (Mon) 06:46:35 No.222

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File: 1574059594989-2.jpg (2.56 MB, 4032x3024, 4:3, IMG_20190625_223032.jpg)

The old power supply was janky as fuck, so I made a new one.

Anonymous 11/18/19 (Mon) 06:50:41 No.223

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File: 1574059841030-2.jpg (1.78 MB, 4032x3024, 4:3, IMG_20190817_155506.jpg)

This board here, the output board, had this giant leaky capacitor on it, which I replaced. There was also a janky voltage divider circuit for generating a 6V "signal ground," so I ripped that out and replaced it with a more modern regulator chip. Once I did all that, and fixed a missing ground, it suddenly started working again.

Anonymous 11/18/19 (Mon) 20:25:06 No.227

nice, hobbies r gud

Anonymous 08/20/20 (Thu) 19:46:06 No.333

bump, badass - vid of how it sounds pls

Anonymous 10/05/20 (Mon) 13:29:41 No.342

bump for an update

Anonymous 10/08/20 (Thu) 21:42:04 No.345

>>227
Maje a post

Anonymous 10/09/20 (Fri) 05:56:45 No.346

File: 1602223004456.webm (12.61 MB, 320x240, 4:3, JagDemo.webm)

>>333
>>342
Well, since you asked so nicely….
pardon the potato sound quality; it was the best i could do

Anonymous 10/12/20 (Mon) 07:01:58 No.347

>>346
nice, thanks

Anonymous 06/07/21 (Mon) 05:54:39 No.398

bump

Anonymous 08/21/21 (Sat) 02:37:43 No.460

>>346
This is so cool I love this style of organ

Anonymous 03/07/22 (Mon) 16:08:57 No.678

i regularly come to this thread to listen to that vid budy posted so uh i guess ok i just want it right there at the top of page one get over it loser

Anonymous 03/08/22 (Tue) 22:46:49 No.680

sage

Anonymous 05/17/22 (Tue) 03:00:07 No.812

>>220
Did you ever fix't the organ?

Anonymous 05/19/22 (Thu) 04:06:55 No.814

>>812
i had a great organsm last week

Anonymous 05/26/22 (Thu) 06:37:04 No.823

>>812
ya he even played >us a song itt

Anonymous 02/02/23 (Thu) 21:33:54 No.1307

>>346
Oh shet how does it manage polyphony? Does it really have an oscilator for each key? How does the reverb work?