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softfin
Joined: Oct 11, 2006
Posts: 271
Location: Far in the north
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 Posted: Mon Jul 14, 2008 9:01 am Post subject:
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| Funky40 wrote: |
Uffff !!!!
i just was on the way to get new LDRs and surched this Thread for a distrelec number.
Hurra, hurra, i found em now, hehe
Between the two Boards ofcourse  , 
ahhh, one should be faster with building all that stuff |
Just finished my 'Krautrock phaser'. Had some problems at first due to the rate jack being not insulated, but solved that with some electric tape and a plastic nut 
I modified mine by adding a trimmer between the bd239 and the lamps to adjust the sweep to my taste..worked fine. This phaser sounds excellent to my ears, I just love it.
I mentioned earlier that I planned to make a big box with various JH effects, but after building this I think every JH effect deserves it'sr own case!
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| I thought I didn't have any momentary switches, but luckily I had some of these mini size ones :D |
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numbertalk
Joined: May 05, 2008
Posts: 992
Location: Austin, TX
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softfin
Joined: Oct 11, 2006
Posts: 271
Location: Far in the north
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| Posted: Tue Jul 15, 2008 9:56 am Post subject:
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I'd say they are normal sockets that have been piled up. |
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numbertalk
Joined: May 05, 2008
Posts: 992
Location: Austin, TX
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| Posted: Tue Jul 15, 2008 9:59 am Post subject:
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That's what I thought but just making sure.
Thanks.
| softfin wrote: |
I'd say they are normal sockets that have been piled up. |
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numbertalk
Joined: May 05, 2008
Posts: 992
Location: Austin, TX
Audio files: 5
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| Posted: Tue Jul 15, 2008 10:34 am Post subject:
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Has anyone who has built this project compiled any build notes they'd be willing to share? I just ordered a kit of the difficult to find parts from Tobias and will hopefully build this one day I've read this entire thread over a few times and have gotten a lot from that, but still have many questions (off-board wiring, calibrating the effect with the trimmers, etc...)
Also, looking at the photo of this build:
http://electro-music.com/forum/phpbb-files/kraut_2_393.jpg
I'm not sure how to know the jumper is right below the Osc Period jack, or why the pot for this is wired to the 2 specific pads it's wired to, or why there is a plug blocking 2 of the pins for the Amount connector (or even what that plug is).
Also, In the schematic (http://www.jhaible.heim.at/compact_clone/jh_krautrock_phaser_sch.pdf) what is the symbol that the 3rd pin of the Rate and Amount connectors?
Thanks. |
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jhaible
Joined: May 25, 2007
Posts: 2014
Location: Germany
Audio files: 24
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| Posted: Tue Jul 15, 2008 2:34 pm Post subject:
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You don't need any sockets for the LDRs - just put some insulation over the leads (stripped from a piece of insulated wire) and solder the leads into the PCB directly.
I only had sockets on my prototype to try different LDRs without desoldering.
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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jhaible
Joined: May 25, 2007
Posts: 2014
Location: Germany
Audio files: 24
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| Posted: Tue Jul 15, 2008 2:40 pm Post subject:
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| numbertalk wrote: |
Also, In the schematic (http://www.jhaible.heim.at/compact_clone/jh_krautrock_phaser_sch.pdf) what is the symbol that the 3rd pin of the Rate and Amount connectors?
Thanks. |
The connector goes to a 1/4" TRS jack ("tip, ring sleeve").
In case of "AMOUNT", the tip is normalized to the ring, i.e. a switch contact makes a connection from ring to tip, which is broken when a plug is inserted.
Without connecting a jack, a jumper provides that connection.
Remember that you need insulated jacks for these functions.
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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numbertalk
Joined: May 05, 2008
Posts: 992
Location: Austin, TX
Audio files: 5
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| Posted: Tue Jul 15, 2008 4:16 pm Post subject:
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| jhaible wrote: |
The connector goes to a 1/4" TRS jack ("tip, ring sleeve").
In case of "AMOUNT", the tip is normalized to the ring, i.e. a switch contact makes a connection from ring to tip, which is broken when a plug is inserted.
Without connecting a jack, a jumper provides that connection.
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Ah, ok. Makes sense - I could tell the other 2 leads were connected to parts of a jack. Which part of the jack is that in the schematic with the two black horizontal bars? Is that the sleeve?
Also, sorry if this is a stupid question, but I'm not sure I'm totally clear what would be an jack insulated - would that be just a closed jack?
Thanks. |
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jhaible
Joined: May 25, 2007
Posts: 2014
Location: Germany
Audio files: 24
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| Posted: Tue Jul 15, 2008 11:38 pm Post subject:
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| numbertalk wrote: | | jhaible wrote: |
The connector goes to a 1/4" TRS jack ("tip, ring sleeve").
In case of "AMOUNT", the tip is normalized to the ring, i.e. a switch contact makes a connection from ring to tip, which is broken when a plug is inserted.
Without connecting a jack, a jumper provides that connection.
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Ah, ok. Makes sense - I could tell the other 2 leads were connected to parts of a jack. Which part of the jack is that in the schematic with the two black horizontal bars? Is that the sleeve? |
Yes.
| Quote: | | Also, sorry if this is a stupid question, but I'm not sure I'm totally clear what would be an jack insulated - would that be just a closed jack? |
No metal bushing.
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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numbertalk
Joined: May 05, 2008
Posts: 992
Location: Austin, TX
Audio files: 5
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| Posted: Wed Jul 16, 2008 6:49 am Post subject:
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Thank you.
| jhaible wrote: | | numbertalk wrote: | | jhaible wrote: |
The connector goes to a 1/4" TRS jack ("tip, ring sleeve").
In case of "AMOUNT", the tip is normalized to the ring, i.e. a switch contact makes a connection from ring to tip, which is broken when a plug is inserted.
Without connecting a jack, a jumper provides that connection.
|
Ah, ok. Makes sense - I could tell the other 2 leads were connected to parts of a jack. Which part of the jack is that in the schematic with the two black horizontal bars? Is that the sleeve? |
Yes.
| Quote: | | Also, sorry if this is a stupid question, but I'm not sure I'm totally clear what would be an jack insulated - would that be just a closed jack? |
No metal bushing.
JH. |
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numbertalk
Joined: May 05, 2008
Posts: 992
Location: Austin, TX
Audio files: 5
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| Posted: Wed Jul 16, 2008 11:49 am Post subject:
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I've been studying the schematic and cross-referencing with some of the build photos in the thread and I think I'm starting to get the off-board wiring now.
One thing I wanted to check - for all pots that are represented horizontally in the schematic (for example, R66, the Feedback pot), does the left-most lead into the pot represent the CW lug? I know it's labeled that way for the Osc. Period pot in the schematic but I wanted to make sure that also applied to the rest of the horizontal pots in the schematic. How about the pots that are represented vertically in the schematic? Is the top-most lead into the pot in the diagram the CW lug?
And I hope this isn't too stupid of a question, but just to make sure, the CW lug is the one where if you are facing the knob/top of the pot, it's the lug on the right side (the side that you would be turning the dial towards when turning it clockwise).
Finally, in the photos from 23isgood's build, the jumper beneath the Osc Period pot pads is still confusing me. That group of 3 pads aren't labeled on either of the component overlay images either.
Thanks. |
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jhaible
Joined: May 25, 2007
Posts: 2014
Location: Germany
Audio files: 24
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| Posted: Wed Jul 16, 2008 12:34 pm Post subject:
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| numbertalk wrote: | I've been studying the schematic and cross-referencing with some of the build photos in the thread and I think I'm starting to get the off-board wiring now.
One thing I wanted to check - for all pots that are represented horizontally in the schematic (for example, R66, the Feedback pot), does the left-most lead into the pot represent the CW lug? I know it's labeled that way for the Osc. Period pot in the schematic but I wanted to make sure that also applied to the rest of the horizontal pots in the schematic. How about the pots that are represented vertically in the schematic? Is the top-most lead into the pot in the diagram the CW lug?
And I hope this isn't too stupid of a question, but just to make sure, the CW lug is the one where if you are facing the knob/top of the pot, it's the lug on the right side (the side that you would be turning the dial towards when turning it clockwise).
Finally, in the photos from 23isgood's build, the jumper beneath the Osc Period pot pads is still confusing me. That group of 3 pads aren't labeled on either of the component overlay images either.
Thanks. |
I don't have a system for placing cw and ccw ends when I draw pots in schematics. In some cases I'm lazy and don't label it, when I think it's obvious, and in some cases I label it when I think there might be confusion otherwise.
The jumper turns the PERIOD potentiometer into a rheostat (variable resistor) by connecting either the cw end or the ccw end to the wiper.
If you connect the cw end to the wiper, the LFO *period* is increased by turning the knob clockwise. (Always look at the knob, not from behind the pot!) This works best with an audi taper ("log") potentiometer.
If you connect the ccw end to the wiper, the LFO *frequency* is increased as you turn the knob clockwise. This works best with a reverse audio taper pot.
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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numbertalk
Joined: May 05, 2008
Posts: 992
Location: Austin, TX
Audio files: 5
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| Posted: Wed Jul 16, 2008 1:23 pm Post subject:
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Thanks for that information. I think I can figure the pots out. If I'm uncertain about any of them once I've reached that point in building I'll check here to make sure they're done right.
| jhaible wrote: | | numbertalk wrote: | I've been studying the schematic and cross-referencing with some of the build photos in the thread and I think I'm starting to get the off-board wiring now.
One thing I wanted to check - for all pots that are represented horizontally in the schematic (for example, R66, the Feedback pot), does the left-most lead into the pot represent the CW lug? I know it's labeled that way for the Osc. Period pot in the schematic but I wanted to make sure that also applied to the rest of the horizontal pots in the schematic. How about the pots that are represented vertically in the schematic? Is the top-most lead into the pot in the diagram the CW lug?
And I hope this isn't too stupid of a question, but just to make sure, the CW lug is the one where if you are facing the knob/top of the pot, it's the lug on the right side (the side that you would be turning the dial towards when turning it clockwise).
Finally, in the photos from 23isgood's build, the jumper beneath the Osc Period pot pads is still confusing me. That group of 3 pads aren't labeled on either of the component overlay images either.
Thanks. |
I don't have a system for placing cw and ccw ends when I draw pots in schematics. In some cases I'm lazy and don't label it, when I think it's obvious, and in some cases I label it when I think there might be confusion otherwise.
The jumper turns the PERIOD potentiometer into a rheostat (variable resistor) by connecting either the cw end or the ccw end to the wiper.
If you connect the cw end to the wiper, the LFO *period* is increased by turning the knob clockwise. (Always look at the knob, not from behind the pot!) This works best with an audi taper ("log") potentiometer.
If you connect the ccw end to the wiper, the LFO *frequency* is increased as you turn the knob clockwise. This works best with a reverse audio taper pot.
JH. |
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jhaible
Joined: May 25, 2007
Posts: 2014
Location: Germany
Audio files: 24
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| Posted: Wed Jul 16, 2008 1:42 pm Post subject:
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| numbertalk wrote: | | Thanks for that information. I think I can figure the pots out. If I'm uncertain about any of them once I've reached that point in building I'll check here to make sure they're done right. |
Oh, if you look at the orientation of the pots on the *PCB*, it should all be clear. "Knob side" is the solder side of the PCB. What's ccw there, should also be the ccw end of your pot when it's connected with wires.
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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numbertalk
Joined: May 05, 2008
Posts: 992
Location: Austin, TX
Audio files: 5
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| Posted: Wed Jul 16, 2008 1:47 pm Post subject:
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Ah, very good point! Thanks!
| jhaible wrote: | | numbertalk wrote: | | Thanks for that information. I think I can figure the pots out. If I'm uncertain about any of them once I've reached that point in building I'll check here to make sure they're done right. |
Oh, if you look at the orientation of the pots on the *PCB*, it should all be clear. "Knob side" is the solder side of the PCB. What's ccw there, should also be the ccw end of your pot when it's connected with wires.
JH. |
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numbertalk
Joined: May 05, 2008
Posts: 992
Location: Austin, TX
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| Posted: Wed Jul 16, 2008 1:53 pm Post subject:
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Also makes sense now why those extra pads are there in front of that pot for the jumpers, since you can't just easily solder a wire directly between lugs like you can on a non-board mounted pot. I can now see as well that those 3 "dots" floating above the pot in the schematic are those 3 pads.
| jhaible wrote: | | numbertalk wrote: | | Thanks for that information. I think I can figure the pots out. If I'm uncertain about any of them once I've reached that point in building I'll check here to make sure they're done right. |
Oh, if you look at the orientation of the pots on the *PCB*, it should all be clear. "Knob side" is the solder side of the PCB. What's ccw there, should also be the ccw end of your pot when it's connected with wires.
JH. |
[/quote] |
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numbertalk
Joined: May 05, 2008
Posts: 992
Location: Austin, TX
Audio files: 5
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| Posted: Wed Jul 16, 2008 2:14 pm Post subject:
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| jhaible wrote: | In case of "AMOUNT", the tip is normalized to the ring, i.e. a switch contact makes a connection from ring to tip, which is broken when a plug is inserted.
Without connecting a jack, a jumper provides that connection. |
So is that what the plug is over the 2 rightmost pins of the Amount connector in the photo of your prototype? Just to be clear, if I were to use an insulated switched jack, I would not need this jumper, correct?
These types of pin connectors are still new to me - what is that part that's being used as a jumper on the Amount specifically called? In other words, if I wanted to search Mouser for one, what would I search on?
Thanks. |
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jhaible
Joined: May 25, 2007
Posts: 2014
Location: Germany
Audio files: 24
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| Posted: Wed Jul 16, 2008 3:17 pm Post subject:
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| numbertalk wrote: |
So is that what the plug is over the 2 rightmost pins of the Amount connector in the photo of your prototype? Just to be clear, if I were to use an insulated switched jack, I would not need this jumper, correct?
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Right.
| Quote: | These types of pin connectors are still new to me - what is that part that's being used as a jumper on the Amount specifically called? In other words, if I wanted to search Mouser for one, what would I search on?
Thanks. |
In Germany, we call these "jumpers", which I think is an English word, so I always thought they'd be called jumper in English, too.
So, what *are* they called in English?
(Of course you don't need a jumper - just solder a wire in, if you know you don't need a jack. Jumpers (or whatever they are called) are for prototyping, not for production ...
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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numbertalk
Joined: May 05, 2008
Posts: 992
Location: Austin, TX
Audio files: 5
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| Posted: Wed Jul 16, 2008 7:34 pm Post subject:
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| jhaible wrote: | In Germany, we call these "jumpers", which I think is an English word, so I always thought they'd be called jumper in English, too.
So, what *are* they called in English? |
They probably are technically called jumpers. I know they *act* as jumpers but I thought they might have a different actual component name. Are they shunts or is this something different - http://www.mouser.com/Search/ProductDetail.aspx?qs=IOh0O5QtZ93GP7pAs6ZYWw%3d%3d
Thanks. |
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jhaible
Joined: May 25, 2007
Posts: 2014
Location: Germany
Audio files: 24
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| Posted: Wed Jul 16, 2008 11:42 pm Post subject:
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| numbertalk wrote: | | jhaible wrote: | In Germany, we call these "jumpers", which I think is an English word, so I always thought they'd be called jumper in English, too.
So, what *are* they called in English? |
They probably are technically called jumpers. I know they *act* as jumpers but I thought they might have a different actual component name. Are they shunts or is this something different - http://www.mouser.com/Search/ProductDetail.aspx?qs=IOh0O5QtZ93GP7pAs6ZYWw%3d%3d
Thanks. |
As far as I can tell, they look like the right thing.
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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numbertalk
Joined: May 05, 2008
Posts: 992
Location: Austin, TX
Audio files: 5
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| Posted: Thu Jul 17, 2008 6:38 am Post subject:
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Thanks for your patience and your help!
| jhaible wrote: | | numbertalk wrote: | | jhaible wrote: | In Germany, we call these "jumpers", which I think is an English word, so I always thought they'd be called jumper in English, too.
So, what *are* they called in English? |
They probably are technically called jumpers. I know they *act* as jumpers but I thought they might have a different actual component name. Are they shunts or is this something different - http://www.mouser.com/Search/ProductDetail.aspx?qs=IOh0O5QtZ93GP7pAs6ZYWw%3d%3d
Thanks. |
As far as I can tell, they look like the right thing.
JH. |
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numbertalk
Joined: May 05, 2008
Posts: 992
Location: Austin, TX
Audio files: 5
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| Posted: Thu Jul 17, 2008 7:44 am Post subject:
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softfin, what did you use for an enclosure?
| softfin wrote: |
Just finished my 'Krautrock phaser'. Had some problems at first due to the rate jack being not insulated, but solved that with some electric tape and a plastic nut
I modified mine by adding a trimmer between the bd239 and the lamps to adjust the sweep to my taste..worked fine. This phaser sounds excellent to my ears, I just love it.
I mentioned earlier that I planned to make a big box with various JH effects, but after building this I think every JH effect deserves it'sr own case! |
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numbertalk
Joined: May 05, 2008
Posts: 992
Location: Austin, TX
Audio files: 5
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| Posted: Thu Jul 17, 2008 10:22 am Post subject:
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| Does it matter if the momentary switch for bypass is of type normally open or type normally closed? |
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jhaible
Joined: May 25, 2007
Posts: 2014
Location: Germany
Audio files: 24
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| Posted: Thu Jul 17, 2008 11:50 am Post subject:
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| numbertalk wrote: | | Does it matter if the momentary switch for bypass is of type normally open or type normally closed? |
Must be normally open.
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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numbertalk
Joined: May 05, 2008
Posts: 992
Location: Austin, TX
Audio files: 5
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| Posted: Thu Jul 17, 2008 12:09 pm Post subject:
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Thanks.
| jhaible wrote: | | numbertalk wrote: | | Does it matter if the momentary switch for bypass is of type normally open or type normally closed? |
Must be normally open.
JH. |
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