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strategy
Joined: Jan 03, 2009 Posts: 87 Location: portland, oregon
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Posted: Sun Jun 06, 2010 9:20 am Post subject:
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v-un-v wrote: | Hey Paul! That's an interesting and sparse design. It it working well?
Tom |
Hi! Yes, it really is working well! The lack of labelling works for me except I tend to forget which jack is in and which is out! So I try to mark those with one of those clear plastic dome shaped enclosure feet.
I like equipment that can double as floor or mixing desk unit, tend to shy away from rack space things with rack ears etc.
One of the things I don't look forward to repeating is working with a 4PDT stomp switch. Never did track down a pinout schem for this so it took me and VTL5C3 some considerable time identifying the pinout w/ a meter. What a pain.
So far I've used this on organ with one of my bands and it sounds very good in that context- capable almost of Leslie speaker type sounds with a little pitch bend in the 'fall' stage of the LFO! I also used it in stereo at a recent 'techno' type performance with drum machines etc. Was very 3-dimensional sounding on a stereo PA system!
- Strategy _________________ --------
community-library.net/strategyhome.htm |
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toppobrillo
Joined: Dec 10, 2005 Posts: 766 Location: oakland, ca
G2 patch files: 1
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TekniK
Joined: Aug 10, 2008 Posts: 1059
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Posted: Wed Jun 16, 2010 1:04 pm Post subject:
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topp wrote: | buchlasized FS1A! finally usable had to make some brackets to mount the PCBs |
oh,nice! |
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sduck
Joined: Dec 16, 2007 Posts: 459 Location: Nashville
Audio files: 5
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Posted: Tue Aug 10, 2010 4:34 pm Post subject:
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Here's my Son of Storm Tide Flanger -
The layout of the front panel isn't the greatest - but everything's there at least.
The construction of this threw me a few problems. First, I ordered the wrong kind of resistors - those big fat ones are cute and cheap but don't really fit well. I was able to substitute a bunch of them with normal sized ones I had on hand, but still had to use a lot of the big ones. Also, I didn't really have the right size bracket, so used 2 smaller ones instead, and then cut them a bit too small for the components, so I ended up angling the pcb to make it all fit. Doesn't look great, but it works.
Oh - it's an excellent sounding flanger, and I haven't even calibrated it yet! |
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TekniK
Joined: Aug 10, 2008 Posts: 1059
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Posted: Tue Aug 10, 2010 9:14 pm Post subject:
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nice built,did you adapt the output level because its quit low? |
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sduck
Joined: Dec 16, 2007 Posts: 459 Location: Nashville
Audio files: 5
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Posted: Wed Aug 11, 2010 8:40 am Post subject:
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No - I just built it as is, and I find that the active level is the same as the bypass level if I have the input level all the way up. If you have the mix all the way over to bbd, there are some settings where it goes pretty low, but there are also some that are louder.
Oh and thanks, but I think I like your design better! I tried to find a way to fit everything into 2U, but couldn't do it. |
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TekniK
Joined: Aug 10, 2008 Posts: 1059
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Posted: Wed Aug 11, 2010 9:16 pm Post subject:
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sduck wrote: | No - I just built it as is, and I find that the active level is the same as the bypass level if I have the input level all the way up. If you have the mix all the way over to bbd, there are some settings where it goes pretty low, but there are also some that are louder.
Oh and thanks, but I think I like your design better! I tried to find a way to fit everything into 2U, but couldn't do it. |
Strange ,i have a very big difference in levels/
I think your panel is not that bad for a MOTM style Steve,but yes one knob row could has been moved a bit lower if the switch would be more to the left. |
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jhaible
Joined: May 25, 2007 Posts: 2014 Location: Germany
Audio files: 24
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Posted: Wed Aug 11, 2010 10:24 pm Post subject:
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sduck wrote: | No - I just built it as is, and I find that the active level is the same as the bypass level if I have the input level all the way up. If you have the mix all the way over to bbd, there are some settings where it goes pretty low, but there are also some that are louder.
Oh and thanks, but I think I like your design better! I tried to find a way to fit everything into 2U, but couldn't do it. |
I just saw your design made it to matrixsynth!
http://matrixsynth.blogspot.com/search/label/JH
Levels: Generally, it should have approximately unity gain. High resonance or notches where the main signal enery is, with alter the amplitude of course, but generally, it's designed for unity gain.
JH. _________________ "I tell you the truth, if anyone says to this mountain, 'Go, throw yourself into the sea,' and does not doubt in his heart but believes that what he says will happen, it will be done for him. Therefore I tell you, whatever you ask for in prayer, believe that you have received it, and it will be yours." (Mk 11,23f) |
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TekniK
Joined: Aug 10, 2008 Posts: 1059
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Posted: Wed Aug 11, 2010 11:16 pm Post subject:
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jhaible wrote: |
Levels: Generally, it should have approximately unity gain. High resonance or notches where the main signal enery is, with alter the amplitude of course, but generally, it's designed for unity gain.
JH. | Then there is for sure a mistake in my pcb,i have to check some resistors then,i got the same problem in the resonator,the supplier did tagged resitor bags wrong,so i did need to swap some resistors. |
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jhaible
Joined: May 25, 2007 Posts: 2014 Location: Germany
Audio files: 24
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Posted: Wed Aug 11, 2010 11:42 pm Post subject:
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TekniK wrote: | jhaible wrote: |
Levels: Generally, it should have approximately unity gain. High resonance or notches where the main signal enery is, with alter the amplitude of course, but generally, it's designed for unity gain.
JH. | Then there is for sure a mistake in my pcb,i have to check some resistors then,i got the same problem in the resonator,the supplier did tagged resitor bags wrong,so i did need to swap some resistors. |
Sounds like a reasonable explanation. As mixing up resistor values tends to happen with the ring that denotes the decimal power, you're easily in for errors in the order of a magnitude - 20dBs for mixing up an orange and red ring, or 40dbs for taking a brown ring for orange.
JH. _________________ "I tell you the truth, if anyone says to this mountain, 'Go, throw yourself into the sea,' and does not doubt in his heart but believes that what he says will happen, it will be done for him. Therefore I tell you, whatever you ask for in prayer, believe that you have received it, and it will be yours." (Mk 11,23f) |
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slaughterhousesam
Joined: Aug 27, 2010 Posts: 16 Location: london
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slaughterhousesam
Joined: Aug 27, 2010 Posts: 16 Location: london
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slaughterhousesam
Joined: Aug 27, 2010 Posts: 16 Location: london
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loydb
Joined: Feb 04, 2010 Posts: 393 Location: Providence, RI
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TekniK
Joined: Aug 10, 2008 Posts: 1059
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Posted: Sat Sep 18, 2010 3:28 pm Post subject:
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nice panel graphics |
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slaughterhousesam
Joined: Aug 27, 2010 Posts: 16 Location: london
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slaughterhousesam
Joined: Aug 27, 2010 Posts: 16 Location: london
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Posted: Sat Sep 18, 2010 4:13 pm Post subject:
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about the living vco layout....
there is a contrast between the top-down a-b-c of the fm/det/pw/pwd controls, and the big freq knobs, which i laid out in newspaper style
----A----
-B----C--
and the tracking and sq/saw switches bisect those knobs (follow the colour switch caps).
id always intended to have 2 side by side, so made sure the knob spacings flowed nicely across panels.
seems some kind of logical to me, but mileage may differ |
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Luka
Joined: Jun 29, 2007 Posts: 1003 Location: Melb.
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slaughterhousesam
Joined: Aug 27, 2010 Posts: 16 Location: london
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Posted: Sun Sep 19, 2010 3:19 am Post subject:
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cake?
first two layers are power filtering (beads/caps), then its the switch to send in a standard voltage to the...erm...forgotten the damn word...the normalised/unplugged inputs of the jacks, and lastly a switch to switch in dc blocking caps. as per jurgen's suggested method on the project page. |
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tomcat
Joined: Oct 14, 2005 Posts: 141 Location: earth
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Posted: Tue Sep 21, 2010 7:14 am Post subject:
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Comparable to the Spectrol/Vishay? |
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slaughterhousesam
Joined: Aug 27, 2010 Posts: 16 Location: london
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Posted: Tue Sep 21, 2010 7:32 am Post subject:
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i had to get a vishay as i couldnt find the tt's in 1M, and they are noticeably lighter than the vishay. i like it but ymmv. |
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defex
Joined: Jun 27, 2008 Posts: 36 Location: Toronto, canada
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Posted: Fri Sep 24, 2010 10:21 am Post subject:
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Here is another LVCO
Tested and working. just have to add the mixer and LED driver board (and sync, if it works!)
you can see where i replaced the pulse/saw switches with pots, it screwed up the look a bit, but it is worth it to have variable pulse/saw mix per osc.
note the home made concentric pot
It sounds great!
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jumunius
Joined: Apr 19, 2010 Posts: 346 Location: San Francisco, CA
Audio files: 13
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Posted: Fri Sep 24, 2010 10:24 pm Post subject:
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defex wrote: | Here is another LVCO |
Lovely build. Can you explain how you connect your pots? It looks like your pots are mounted directly onto 3-wire female headers. Is that so?
I'm eventually buying a lot of Bi/TT pots which have pins spaced at 2.5mm apart -- does that fit right to a MTA-156 connector? |
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defex
Joined: Jun 27, 2008 Posts: 36 Location: Toronto, canada
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Posted: Sat Sep 25, 2010 8:05 am Post subject:
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jumunius wrote: | defex wrote: | Here is another LVCO |
Lovely build. Can you explain how you connect your pots? It looks like your pots are mounted directly onto 3-wire female headers. Is that so?
I'm eventually buying a lot of Bi/TT pots which have pins spaced at 2.5mm apart -- does that fit right to a MTA-156 connector? |
That type of pot has the same spacing as a 0.1inch (2.5 mm!) connector with a long wire on it, after i connect the IDC connector and make sure it is working properly it will get a bit of hot glue to hold it in place
I bend the pot wires a little bit after i put the IDC connector to make it point up.. press a connector down as far as it will go then bend back .
If i build another one i will make a circuit board for the pots, it would save a lot of time. |
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2thick4uni
Joined: Feb 20, 2009 Posts: 113 Location: UK
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Posted: Sun Sep 26, 2010 10:19 am Post subject:
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defex wrote: | Here is another LVCO
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Great build, I do like the home made concentric pot!
Do please keep us posted on your progress at adding a sync input, I'd love to fit this to my JH LVCO............ |
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