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 Forum index » DIY Hardware and Software » fonik's place
3rd run for Thomas Henry's 555-VCO and Controller LFO
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muziekzen



Joined: Jun 11, 2013
Posts: 6
Location: ITALY
Audio files: 1
PostPosted: Sun Jun 26, 2016 8:58 am    Post subject: Reply with quote  Mark this post and the followings unread
elmegil wrote:
Any of the pots that are voltage dividers should be able to be any value you care to use. Lower than 100K will consume a bit more current overall, but I don't have any reason to expect that would be a problem.


Thank you!
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beepboop



Joined: Apr 08, 2016
Posts: 4
Location: US
PostPosted: Fri Aug 26, 2016 6:29 am    Post subject: Reply with quote  Mark this post and the followings unread
Always late to the party. If anyone has any spare 555-VCO PCBs gathering dust I would love to purchase them and give them a good home.
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fonik



Joined: Jun 07, 2006
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Location: Germany
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PostPosted: Fri Aug 26, 2016 10:16 am    Post subject: Reply with quote  Mark this post and the followings unread
thonk re-stocks soon, and they ordered 20% more main PCBs than adapter PCBs/Panels Very Happy

ETA 2nd half september
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cheers,
matthias
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beepboop



Joined: Apr 08, 2016
Posts: 4
Location: US
PostPosted: Fri Aug 26, 2016 11:21 am    Post subject: Reply with quote  Mark this post and the followings unread
Fantastic Very Happy
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stahlblau



Joined: Jan 24, 2008
Posts: 17
Location: Herford / Germany
PostPosted: Thu Jul 06, 2017 8:06 am    Post subject: Reply with quote  Mark this post and the followings unread
The building notes says:

2)
when powering from 12V:
R13 = 2k
R27 = 22k
R33 = 137k

I don't have any 137k Sad . Can i keep the 100k instead? Or would it be better to take an 120k or 150k (wich i have lying around) to get even closer?

Many thanks
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fonik



Joined: Jun 07, 2006
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PostPosted: Thu Jul 06, 2017 8:36 am    Post subject: Reply with quote  Mark this post and the followings unread
stahlblau wrote:
The building notes says:

2)
when powering from 12V:
R13 = 2k
R27 = 22k
R33 = 137k

I don't have any 137k Sad . Can i keep the 100k instead? Or would it be better to take an 120k or 150k (wich i have lying around) to get even closer?

Many thanks

the higher R33 the higher the ramp level. i would go for 120k. the 150k would not hurt either.
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cheers,
matthias
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stahlblau



Joined: Jan 24, 2008
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PostPosted: Thu Jul 06, 2017 8:37 am    Post subject: Reply with quote  Mark this post and the followings unread
super Matthias! many thanks Very Happy
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Aurelius



Joined: Jan 11, 2016
Posts: 1
Location: Poland
PostPosted: Sat Nov 25, 2017 2:53 am    Post subject: Reply with quote  Mark this post and the followings unread
Hello

Does anyone have for sell the fonitronik 555vco panel?
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fonik



Joined: Jun 07, 2006
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PostPosted: Sat Nov 25, 2017 3:04 am    Post subject: Reply with quote  Mark this post and the followings unread
i don't have any left.
however, you might want to drop thonk an email and just ask him. maybe he is willing to sell just the front panel.
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cheers,
matthias
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philpeery



Joined: Nov 08, 2006
Posts: 137
Location: new jersey, usa
PostPosted: Tue Dec 05, 2017 10:20 am    Post subject: Reply with quote  Mark this post and the followings unread
Hi Aurelius, I have a couple 555-VCO panels you can have. My modular is 5U so I don't need them. Send me a PM and we will work out the details.

Phil
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MapacheRaper



Joined: Feb 15, 2018
Posts: 166
Location: Spain
PostPosted: Wed Aug 29, 2018 10:42 am    Post subject: Reply with quote  Mark this post and the followings unread
Hi,

Im building one of the PCBs. I have a tempco doubth: could I use 2x 1k 3000ptc instead of the 2k 3500ppm?

I have opened a thread
http://electro-music.com/forum/post-436410.html#436410re

in the TH room for if someone knows the answer. Any bit is appreciated Wink
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fonik



Joined: Jun 07, 2006
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PostPosted: Wed Aug 29, 2018 10:51 am    Post subject: Reply with quote  Mark this post and the followings unread
it's okay.
but you could also use just one of your 1k and change the other values from 100k to 49.99k.
or just buy the correct one from thonk.
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cheers,
matthias
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MapacheRaper



Joined: Feb 15, 2018
Posts: 166
Location: Spain
PostPosted: Wed Aug 29, 2018 3:17 pm    Post subject: Reply with quote  Mark this post and the followings unread
fonik wrote:
it's okay.
but you could also use just one of your 1k and change the other values from 100k to 49.99k.
or just buy the correct one from thonk.


That´s perfect. I´ll go for the 49.99k. Danke!
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