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Buchla Easel BOM advices and confirmations
MUFF WIGGLER Forum Index -> Buchla, EMS & Serge  
Author Buchla Easel BOM advices and confirmations
krish
Hi,

Regarding the following :

MOTHERBOARD

10K-100K LIN POT11, POT17, POT18 3 9MM
10K-100K LOG POT27, POT28, POT30, POT31 4 16MM ANGLED
10K-100K LIN POT29 1 16MM ANGLED

Are they 10K or 100K ? i can choose 10 or 100 freely ?

Regarding the following:

CARD 12 - OUTPUT

100pF C4, C5, C17, C18 4 CERAMIC 140-50S5-101J-RC
470pF C16 1 CERAMIC 140-50S5-471J-RC

These are obsolescent/discontinued products on Mouser.

Is there an updated version of the BOM i don't have ?

(i downloaded the BOMs from Electronic Music Store)

The one i have has BILL OF MATERIALS REV 1.0 version only for CARD 12,
all other CARDs have 1.1 or 1.2 revision.

Are those the infamous "Orange Drop Caps" that are sold as rare parts ?

390uF 12V C2 1 1 TANTALUM AXIAL SPRAGUE TE-1140 (EBAY)

In the original Easel build thread here on Muff, i read some user suggesting to replace the SPRAGUE TE-1140 with the following:

https://www.mouser.it/ProductDetail/Vishay-Sprague/TVA12087/?qs=sGAEpi MZZMtZ1n0r9vR22cxOkjJhVyTB2MqrLAq1Pz4=

Is the 75-TVA1208.7 (400 uF - 25 VDC) OK and confirmed ? Any users tried it ?

Is there any place online where i can easily order the following ?
(Mouser would be perfect.. if so, any part numbers ?):

8 M3 PAN HEAD SCREW
8 M3 FLAT HEAD SCREW
2 M3 PAN HEAD SCREW (1” LONG)
2 M3 NUT

Can anyone confirm the following:

EDAC1, EDAC2 2 EDAC 56 PIN BLUE

are to be bought here :

https://www.ebay.com/itm/Arcade-JAMMA-Card-Edge-Connector-56-Pin-Solde r-Socket/250884235147?hash=item3a69dd9f8b:g:5uAAAOxy63FS1AM~

Regarding CARD 6:

Is there any reason to prefer LS352 over 2N3806 ?

Lastly, in the large picture of the Motherboard there is the Power pinout,
but where can i find the order of connections on the power connector side ?

T H A N K S !!!!

K
captnapalm
hello,
you’ll probably get better response if you ask in this thread over on the DIY section:
https://www.muffwiggler.com/forum/viewtopic.php?t=127084

(some of them are probably answered already in that thread)
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