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New buchla 208 card 12,diy deeper steps 208 built SOUND now
MUFF WIGGLER Forum Index -> Music Tech DIY  
Author New buchla 208 card 12,diy deeper steps 208 built SOUND now
boops
First ,thanks to all the pioneers (like me) builders who have spent time and shared their experiences since 5 years now,especially Roman F,Dave brown ,
Vediscapes,Papz,beautyof decay,Djangosfire,Dunnington audio,Captanapalm, xpander ,special thanks to Phildao for his parts layout cards work ,etc

Im a musician since 42 years now,i ve always listened the electronics parts,like film capacitors,mustard without memory,MKP LCC resistors carbon composition 1 % without noise, CTS 13 caps ,etc i know the most important in a circuit is the original design ,then layout and the choice of parts which is important for the character of the instrument .(vintage coloration or neutral,frequency,spectre...)

Don Buchla was a genius designer,in 70s the parts he used in the card 12 of the 208 ,the 4136 is acceptable but here the lm 380 was far to good to drive a spring reverb tank ,and the phone amplifier is .....then

i build my last 208 (i’ve built 16),i use Papz pcb first batch,lots of mods but the quality of the pcb is great,trying to use selected parts ,in the audio path like the original,the addition of each steps parts quality at the end give me a incredible sound ,imho more fat organic and present ,the logic stable .We ve designed a new card 12 as an option with a new audio bus,real reverb driver with one filter option,a 2W ,4 ohms phone out .and the Mo dry audio out separate.Bye bye the Lm 380n nanners

pic of the original card 12 ,with only the main audio parts ,aop resitors input ,aop ceramic compensation caps ,one quad aop,handy for the diy builders to test the first cards
pics of my card 12 prototype ,sound asap.

https://soundcloud.com/boops95/buchla-208-card-12-upgrade-2-mo-fx-exte rnal-co-reverb-internal
https://soundcloud.com/boops95/buchla-208-card-12-upgrade

https://soundcloud.com/boops95/buchla-208-card-12-upgrade-2-mo-alone



Synesthesia
Cool, i could use a card 12 replacement on my easel actually.

what is your plan for those ? will you offer them ?
fg
very interesting !!

do you have a schematic ?
thx
boops
Synesthesia wrote:
Cool, i could use a card 12 replacement on my easel actually.

what is your plan for those ? will you offer them ?



After sound demos ,if you find the sound great,i will offer diy card or built ones ,sure
boops
fg wrote:
very interesting !!

do you have a schematic ?
thx


In the future sure ,diyers will need it.
hox3d
Looks nice!

Didn't build an easel yet (saving money, money, money) so I could not tell the flaws of the original design.

So what does your card does (or does not) exactly compared to an original/clone one?

Would it involve modding the front panel?
Karl71
Looks good, definitely interested x2.
sendepause
Will the new card be plug & play? Very much interested. Separate out for each osc is a great feature. Very much looking forward to this....
boops
no panel mod,just a little mod on the mother board easy to do on already built 208 ,a wire to solder for the separate MO direct output if choosen

im waiting some news reverb tanks for sound demo .one with 2 springs and another with 3 springs to compare.


hox3d wrote:
Looks nice!

Didn't build an easel yet (saving money, money, money) so I could not tell the flaws of the original design.

So what does your card does (or does not) exactly compared to an original/clone one?

Would it involve modding the front panel?
edwinm
Separate MO direct output?? Yes!!
boops
edwinm wrote:
Separate MO direct output?? Yes!!



yes before the pot ,with a right audio level (aop)
boops
first sounds

[s]https://soundcloud.com/boops95/buchla-208-card-12-upgrade[/s]
boops
[s]https://soundcloud.com/boops95/buchla-208-card-12-upgrade-2-mo-alon e[/s]

https://soundcloud.com/boops95/buchla-208-card-12-upgrade-2-mo-alone
boops
sound to come
hox3d
Could you make a comparison with/without?

It's hard to make my mind about it, since I don't know (yet) what an Easel sounds like.
pathein
love to get it, any estimation on ready date or cost of the ready made one?
boops
i m waiting a quote from a pcb supplier in a few hours.i will have some to sell in 2 weeks



[s]https://soundcloud.com/boops95/buchla-208-card-12-upgrade-2-mo-fx-e xternal-co-reverb-internal[/s]

https://soundcloud.com/boops95/buchla-208-card-12-upgrade-2-mo-fx-exte rnal-co-reverb-internal
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