toppobrillo triplewavefolder DIY- interest in 2nd run?

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would you be interested in ____?

PCB only
42
38%
PCB and all PCB-mounted parts
70
63%
 
Total votes: 112

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rosch
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Post by rosch » Sun Sep 18, 2011 10:18 am

Image
like this?

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falafelbiels
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Post by falafelbiels » Sun Sep 18, 2011 10:43 am

Wow! You have some nuclear reactors on there, be careful!

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sduck
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Post by sduck » Sun Sep 18, 2011 3:50 pm

Um, you may have ordered the wrong kind of trimmers. However, I suppose those will "work", although they probably cost about 10 times what you should have paid - I hope those were just some old stuff you had lying around.
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toppobrillo
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Post by toppobrillo » Sun Sep 18, 2011 4:27 pm

no, that is reverse, should be EBC from left to right when looking at the flat side in front of you. if you have a reverse pinout of CBE then all you have to do is flip them in the board- but what kind of transistors are you using?

also those trimmers are insane and wayyyyy overkill. i hope they arent shorting leads together as it looks like their casing is conductive!

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rosch
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Post by rosch » Sun Sep 18, 2011 5:11 pm

thanks man, everything's fine! they have the right pinout. it's 2N3906.

hehe yeah the trimmers are overkill indeed. but i had them lying around and they were super cheap, i got a box full of them soviet trimmers. when i noticed they fit the board i just used them. the surface is conductive but doesn't touch any leads. some just rest on the "body" of the resistors. also they're very stable and won't bend or anything. looks funny though.
thanks again, so now i just need some zeners and pots.

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ChrisR
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Post by ChrisR » Thu Sep 22, 2011 4:33 am

TWF & 281 PCBs arrived in Germany!
No customs sticker, shipping took less than a week! :yay:

:guinness:
Buy the ticket - take the ride.

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brother303
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Post by brother303 » Thu Sep 22, 2011 2:44 pm

Hi,
ChrisR wrote:TWF & 281 PCBs arrived in Germany!
No customs sticker, shipping took less than a week! :yay:

:guinness:
Lucky you are, I HAD a customs-sticker on mine and it took them (the famous "deutscher Zoll") about 2 month to get it onto the envelope... :deadbanana:

Regards
Greg
Peake wrote: DIY is all about the backlog. If you don't have a huge backlog, you aren't trying hard enough.

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falafelbiels
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Post by falafelbiels » Fri Sep 23, 2011 5:48 am

I finished this thing with a cardboard panel yesterday. It sounds really nice and interesting. Didn't get all of the functionality at once, but got some nice sounds from it. I bet there's some surprises to come. I will build the panel with attenuators for CV in. This is going to be a quite large panel :party:

Thanks Toppo for another nice design!

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SMS303
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Post by SMS303 » Fri Sep 23, 2011 1:51 pm

Falafelbiels' TWP sounded as: I WANT ONE TOO! :mrgreen:
------------> Jaime Murray does Capua.... ------------------------------------------>

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falafelbiels
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Post by falafelbiels » Fri Sep 23, 2011 2:01 pm

But you want everything you see somebody else having.

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SMS303
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Post by SMS303 » Fri Sep 23, 2011 2:18 pm

falafelbiels wrote:But you want everything you see somebody else having.
yes i'm a copycat :sb:

Don't diss me here just in the FUCK SMS303 thread :lol:
------------> Jaime Murray does Capua.... ------------------------------------------>

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sduck
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Post by sduck » Fri Sep 23, 2011 3:39 pm

Could you guys get a room? I mean, somewhere else completely? Like Mars?
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SMS303
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Post by SMS303 » Fri Sep 23, 2011 4:07 pm

sduck wrote:Could you guys get a room? I mean, somewhere else completely? Like Mars?
lol :lol:
------------> Jaime Murray does Capua.... ------------------------------------------>

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falafelbiels
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Post by falafelbiels » Fri Sep 23, 2011 7:43 pm

Sorry, we'll deal with this stuff in the fuck sms thread. Sorry to hold you up guys, sorry.

Anyway, great circuit, TWF, love it, I really do.





Sorry.

auftauchend
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Post by auftauchend » Sat Sep 24, 2011 5:36 pm

yey, my boards finally arrived! of course they got stuck at the customs...
but now everythings fine, i can start building it.

thanks for the boards!!


greetings

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robotfunk
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Post by robotfunk » Thu Sep 29, 2011 8:17 am

toppobrillo wrote:
There are 5 smd pads, but I can't see them being specified anywhere in the documentation... are they the .1uF?
.1uF is specified as having the qty 4...
don't worry about those. they are really necessary, only there as a precaution against unforseen issues that didn't exist- plenty of bypassing on the top side. if you want to install them they are actually meant to be .01 and tho the pad size is technically for 1206- 0805s fit just fine. the 4x .1s refer to the thru hole caps.
Just for the record, did you mean they are NOT really necessary? as in I can leave the SMD caps out entirely, or solder a wire bridge?

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sduck
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Post by sduck » Thu Sep 29, 2011 9:09 am

I think he means you can leave them off. Don't bridge them though - it won't work at all then.
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Junk Rhythm
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Post by Junk Rhythm » Thu Sep 29, 2011 9:16 am

You can leave the SMD caps off.

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robotfunk
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Post by robotfunk » Thu Sep 29, 2011 10:09 am

Thanks guys!
That means my PCB is ready, onto the front panel and wiring!

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Rod Serling Fan Club
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Post by Rod Serling Fan Club » Mon Oct 10, 2011 6:10 pm

Anyone do one one of these with bananas?

I don't think I am thinking about this correctly so I'll ask here. I'm trying to figure out the best way to go about this. What is the harm in hardwiring all the "normal" connections? Or will I need to add switches to all of these?

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Junk Rhythm
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Post by Junk Rhythm » Mon Oct 10, 2011 6:44 pm

Rod Serling Fan Club wrote:Anyone do one one of these with bananas?

I don't think I am thinking about this correctly so I'll ask here. I'm trying to figure out the best way to go about this. What is the harm in hardwiring all the "normal" connections? Or will I need to add switches to all of these?
Without switches you would lose the ability to use each section independently unless you did each section independently. You could just patch the normal connections as needed.
Last edited by Junk Rhythm on Mon Oct 10, 2011 6:52 pm, edited 1 time in total.

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Junk Rhythm
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Post by Junk Rhythm » Mon Oct 10, 2011 6:47 pm

Insert stupid iPhone respond here.

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Rod Serling Fan Club
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Post by Rod Serling Fan Club » Mon Oct 10, 2011 7:34 pm

I realize now that I was thinking of it backwards. That putting a chord in the jack was connecting sections when it is actually disconnecting sections. It makes sense now.

It looks like the one switch I would still need, if I do the sections seperately, is a switch for DC offset/1B input. Right?

Edit: I just had another thought. The normalized connections for CV have resistors. If I built as independent sections I wouldn't have this normalization or these 3 resistors. I suspect that building these as independent sections means that both "CV all" inputs no longer work?

Sorry for all the questions but without schematics, it' a bit hard for me to follow what is connecting to what on the PCB.

Cable
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Post by Cable » Mon Oct 10, 2011 8:57 pm

Will there be any more runs for this anytime maybe?

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moellhoven
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Post by moellhoven » Tue Oct 11, 2011 1:57 am

Rod Serling Fan Club wrote:Anyone do one one of these with bananas?

I don't think I am thinking about this correctly so I'll ask here. I'm trying to figure out the best way to go about this. What is the harm in hardwiring all the "normal" connections? Or will I need to add switches to all of these?
I also thought alot about this. This is my take on a TWF panel for Modcan A. The design is not finished yet...
Image[/img]

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