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Project

Projecttitel: Buchla 288R v2

Status: IN PROGRESS

Startdate: 03/2022

Duedate: 04/2022

Manufacture link:


Forum: https://modwiggler.com/forum/viewtopic.php?t=243081&start=150

Specs/Info

- 24bit/196KHz sound quality (switchable to 12bit "vintage" mode)
- up to 40 seconds of looping buffer (switchable to original short loop timings)
- both timing and phase/mixing presets are set up by trimmers and dip-switches on a back of a module, no need to wire or change resistors
- preorder is $299, total price is $1099 shipped
- a usb-programmer for firmware updates will be included with each order
- source code will become public shortly after the release of a module
- shipping is scheduled for mid-march 2021
- this is one-time run and i'm not offering kits atm unfortunately
- couple more cool modules to be released later this year.






Bugs:

when the Sum isn't working : there's on few pcbs a trace damaged/missing connection (was reported on modwiggler.com) 


 Change: check the BOM - there's a resistor change needed - swap R6 with R7 and swap R15 with R16

changelog:

R6 was 20k now its 10K R7 was 10K now 20k

R15 was 20k now 10k, R16 was 20k now 10k




BOM:

B288-BOM-v1.0.xlsx



TIME DOMAIN PROCESSOR MODEL 288
BILL OF MATERIALS REV 1.0
PCB1
RESISTORS
VALUEDESIGNATORQTYDESCRIPTIONMOUSER PART#
10KR6, R152

change R6 with R7 (from 10K to 20K)

change R 15 with R16(from 10K to 20K)

not needed
20KR7, R162see abovenot needed





10-100K LOGPOT1, POT3, POT4, POT5416MM ANGLEDhttp://smallbear-electronics.mybigcommerce.com/alpha-single-gang-16mm-right-angle-pc-mount/
10-100K LOGPOT219MMhttp://smallbear-electronics.mybigcommerce.com/alpha-single-gang-9mm-right-angle-pc-mount/
10-100K LINPOT6, POT7216MM ANGLEDhttp://smallbear-electronics.mybigcommerce.com/alpha-single-gang-16mm-right-angle-pc-mount/
50K LINEARPOT8, POT9, POT10, POT11, POT12, POT13, POT14, POT15, POT16945MM TRAVEL ALPS SLIDERFARNELL/NEWARK: RS4511150K

MISC
VALUEDESIGNATORQTYDESCRIPTIONMOUSER PART#


1BANANA JACK BLACK530-108-0903-1


2BANANA JACK RED530-108-0902-1


3BANANA JACK ORANGE530-108-0906-1 

LED1, LED2, LED3, LED4, LED55RED 3MM LED604-WP710A10ID5V

J1-J1818TINY-JAX502-41 
SPDT ON-ONSW2, SW3, SW4, SW5, SW6, SW8, SW9, SW10, SW11, SW13, SW15, SW17, SW1813TOGGLE SWITCH633-M201201
SPDT ON-OFF-ONSW7, SW122TOGGLE SWITCH633-M201301
SPDT (ON)-OFF-(ON)SW141TOGGLE SWITCH633-M201801
SPDT ON-OFF-(ON)SW161TOGGLE SWITCH633-M201901

PBD1, PBD22PLD 20 PIN (MALE)517-929836-01-10-RK


615MM MF STANDOFF


22BLUE SWITCH CAP


2BLACK SWITCH CAP


2RED SWITCH CAP

PCB2
RESISTORS
VALUEDESIGNATORQTYDESCRIPTIONMOUSER PART#
50KTR1-TR3636SINGLE TURN TRIMMER652-3362P-1-503

MISC
VALUEDESIGNATORQTYDESCRIPTIONMOUSER PART#

PLD1, PLD22PLD 20 PIN (FEMALE)579-25AA512-I/P

SW11DIP SWITCH774-2084

SW27, SW28, SW29, SW30, SW31, SW326DIP SWITCH774-2088

SW19, SW20, SW23, SW244DIP SWITCH206-125ST

SW21, SW22, SW25, SW264DIP SWITCH206-124

STLINK1IDC-20 THRUHOLE HEADER571-1761681-7 



DIP SWITCH774-2084


612MM FF STANDOFF


1POWER CONNECTOR587-306-50-010


1ST-LINK/V2 PROGRAMMER511-ST-LINK/V2
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