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 Forum index » DIY Hardware and Software » Jürgen Haible designs
Schulte Compact A Phasing
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jhaible



Joined: May 25, 2007
Posts: 2014
Location: Germany
Audio files: 24

PostPosted: Tue Mar 04, 2008 2:38 pm    Post subject: Re: 5w resistors Reply with quote  Mark this post and the followings unread

austrohungaro wrote:
I cant find 5W resistors Vertical Mount
I only found axial but leads are too short (or body too tall) to fin in the PCB


The one I used has axial leads, too. If yours aren't long enough, a short piece of wire will fix it.

Quote:
Is is important to be exactly 5W??


The 5W are oversized, and you can probably use a lower power rating.
But that's on your own risk, i.e. you make sure that nothing gets too hot and burns.

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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morbank



Joined: Jan 30, 2008
Posts: 58
Location: USA

PostPosted: Tue Mar 04, 2008 11:12 pm    Post subject: Ready to add juice! Reply with quote  Mark this post and the followings unread

I've got my pcb populated and I'm ready to try it out. But before I do I wanted to ask a few questions.

- What are the two jumper wires used for? Should I use both?

- I also noticed a few people are using small jumper on the amount connector, what is this accomplishing?

- What kind of led is needed?

Thanks to all that helped me get this far!
-Clay
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jhaible



Joined: May 25, 2007
Posts: 2014
Location: Germany
Audio files: 24

PostPosted: Wed Mar 05, 2008 12:32 am    Post subject: Re: Ready to add juice! Reply with quote  Mark this post and the followings unread

morbank wrote:

- What are the two jumper wires used for? Should I use both?


If you mean the 3 pins near R25: Either one or the other.
If you're using an ordinary log (audio taper) pot, you connect the wiper to the cw end of the pot, and label the knob "period"
If you have a -log (reverse audio) pot, you coonect the wiper to the cww end, and label the knob "Rate".

If you mean the two long ones near the Input connector: You need them both.

Quote:

- What kind of led is needed?


Depends on what colour and brightness you prefer. Can't really go wrong here.

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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whomper



Joined: Dec 15, 2007
Posts: 201
Location: Israel
Audio files: 2

PostPosted: Wed Mar 05, 2008 12:42 am    Post subject: 1458 -> 4558 Reply with quote  Mark this post and the followings unread

Is the 4558 a suitable replacement for the 1458?

I can not seem to track an 1458 down locally as well as 2 online ordering attempts from Futurelec rendered me a different component.

Whomper
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jhaible



Joined: May 25, 2007
Posts: 2014
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Audio files: 24

PostPosted: Wed Mar 05, 2008 12:46 am    Post subject: Re: 1458 -> 4558 Reply with quote  Mark this post and the followings unread

whomper wrote:
Is the 4558 a suitable replacement for the 1458?

I can not seem to track an 1458 down locally as well as 2 online ordering attempts from Futurelec rendered me a different component.

Whomper


Use a socket and try the 4558. You might need a bypass cap near this IC then.

Strange that the 1458 is so hard to get.

Anybody else has trouble getting this?

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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germaniac



Joined: Aug 04, 2006
Posts: 200
Location: California
Audio files: 7

PostPosted: Wed Mar 05, 2008 9:43 am    Post subject: Reply with quote  Mark this post and the followings unread

No trouble here. NJR/JRC still makes the NJM1458 (one of my all-round favorites), available at Mouser at least:

http://www.mouser.com/Search/ProductDetail.aspx?qs=CH5wpWWrn1PozvFdzYlxCg%3d%3d


Regards,
Joe
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morbank



Joined: Jan 30, 2008
Posts: 58
Location: USA

PostPosted: Wed Mar 05, 2008 3:31 pm    Post subject: Ready to add juice! Reply with quote  Mark this post and the followings unread

Quote:
If you're using an ordinary log (audio taper) pot, you connect the wiper to the cw end of the pot, and label the knob "period"



Using the 3 holes below the R25? Do I connect the center hole to the hole below the cw on the pot?
-Clay
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morbank



Joined: Jan 30, 2008
Posts: 58
Location: USA

PostPosted: Wed Mar 05, 2008 4:07 pm    Post subject: Jumper wire? Reply with quote  Mark this post and the followings unread

Jurgen, one of the phaser prototype photos (compact_clone_2007_prototype_3.jpg) from your compact phaser site shows a green jumper wire in the lower right hand corner. What is it for?
-Clay
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etaoin



Joined: Jun 30, 2005
Posts: 761
Location: Utrecht, NL

PostPosted: Wed Mar 05, 2008 11:34 pm    Post subject: Re: Jumper wire? Reply with quote  Mark this post and the followings unread

morbank wrote:
Jurgen, one of the phaser prototype photos (compact_clone_2007_prototype_3.jpg) from your compact phaser site shows a green jumper wire in the lower right hand corner. What is it for?
-Clay


I think that's just a patch on the prototype board. You'll notice the board is different in other areas as well.

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jhaible



Joined: May 25, 2007
Posts: 2014
Location: Germany
Audio files: 24

PostPosted: Thu Mar 06, 2008 12:22 am    Post subject: Re: Jumper wire? Reply with quote  Mark this post and the followings unread

morbank wrote:
Jurgen, one of the phaser prototype photos (compact_clone_2007_prototype_3.jpg) from your compact phaser site shows a green jumper wire in the lower right hand corner. What is it for?
-Clay


That was the correction of a routing error in the first board.
On the boards I'm selling, this is fixed.

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

PostPosted: Thu Mar 06, 2008 12:25 am    Post subject: Re: Ready to add juice! Reply with quote  Mark this post and the followings unread

morbank wrote:
Quote:
If you're using an ordinary log (audio taper) pot, you connect the wiper to the cw end of the pot, and label the knob "period"



Using the 3 holes below the R25? Do I connect the center hole to the hole below the cw on the pot?
-Clay


When you look where the copper traces go, that explains more than a hundred words ... the 3 pads are directly connected to the 3 pins of the 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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morbank



Joined: Jan 30, 2008
Posts: 58
Location: USA

PostPosted: Thu Mar 06, 2008 10:41 am    Post subject: Ready to add juice! Reply with quote  Mark this post and the followings unread

Quote:
the 3 pads are directly connected to the 3 pins of the pot.


Ok, I get it now. Thanks.
-Clay
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morbank



Joined: Jan 30, 2008
Posts: 58
Location: USA

PostPosted: Fri Mar 07, 2008 11:33 pm    Post subject: My phaser lives! Reply with quote  Mark this post and the followings unread

I fired up my phaser today and aside from the relay everything seems to be functioning Tracking down some of the parts in the US was a bit challenging (for me anyway) but hearing this thing in action makes it all worth while! Thanks Jurgen for reviving this beast and thanks to everyone else on this list for helping me get mine up and running.
-Clay

I wasn't sure where to connect the bypass switch, could that be the reason I couldn't get the relay to work? I was using the Finder relay Tobias suggested from Banzaieffects.
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jhaible



Joined: May 25, 2007
Posts: 2014
Location: Germany
Audio files: 24

PostPosted: Sat Mar 08, 2008 1:19 am    Post subject: Re: My phaser lives! Reply with quote  Mark this post and the followings unread

morbank wrote:

I wasn't sure where to connect the bypass switch, could that be the reason I couldn't get the relay to work? I was using the Finder relay Tobias suggested from Banzaieffects.


The bypass switch goes to the connector labelled "SWITCH", right next to the output connectors.

You need a *momentary* action switch - the electronics do a latching function.

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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morbank



Joined: Jan 30, 2008
Posts: 58
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PostPosted: Sat Mar 08, 2008 9:23 am    Post subject: Bypass Switch Reply with quote  Mark this post and the followings unread

Quote:
The bypass switch goes to the connector labelled "SWITCH", right next to the output connectors.


I wasn't sure if the "switch" connector was for the "remote switch" feature.

I'll put the relay back on and see what happens with the bypass switch connected.
-Clay
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jhaible



Joined: May 25, 2007
Posts: 2014
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Audio files: 24

PostPosted: Sat Mar 08, 2008 9:37 am    Post subject: Re: Bypass Switch Reply with quote  Mark this post and the followings unread

morbank wrote:
Quote:
The bypass switch goes to the connector labelled "SWITCH", right next to the output connectors.


I wasn't sure if the "switch" connector was for the "remote switch" feature.

I'll put the relay back on and see what happens with the bypass switch connected.
-Clay


It's for both, the front panel switch, and th eremote switch jack: They are connected in parallel.
(A brief shorting the two contacts will toggle the relay status.)

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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morbank



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Posts: 58
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PostPosted: Sat Mar 08, 2008 12:03 pm    Post subject: Slower Oscillation Period? Reply with quote  Mark this post and the followings unread

I would love to be able to get slower / longer oscillation periods, could this be achieved using a potentiometer of a different value?
-Clay
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jhaible



Joined: May 25, 2007
Posts: 2014
Location: Germany
Audio files: 24

PostPosted: Sat Mar 08, 2008 12:52 pm    Post subject: Re: Slower Oscillation Period? Reply with quote  Mark this post and the followings unread

morbank wrote:
I would love to be able to get slower / longer oscillation periods, could this be achieved using a potentiometer of a different value?
-Clay


Yes - larger pot for OSC_PERIOD should work.
100k log should double the sweep time at the slowest setting, without decreasing fastest sweep rate.

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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morbank



Joined: Jan 30, 2008
Posts: 58
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PostPosted: Sat Mar 08, 2008 3:16 pm    Post subject: Slower Oscillation Period? Reply with quote  Mark this post and the followings unread

Quote:
100k log should double the sweep time at the slowest setting, without decreasing fastest sweep rate.


Cool, I'll defiantly give this a try!
-Clay
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morbank



Joined: Jan 30, 2008
Posts: 58
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PostPosted: Sat Mar 08, 2008 4:51 pm    Post subject: 18v AC Wallwart Adaptor Reply with quote  Mark this post and the followings unread

For anyone interested in using the 18v AC wallwart adaptor Jurgen suggested as an alternative to the recommended power supply I can say that it seems to be working for me!
-Clay
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morbank



Joined: Jan 30, 2008
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PostPosted: Sat Mar 08, 2008 5:26 pm    Post subject: Relay Reply with quote  Mark this post and the followings unread

I connected the bypass switch and reconnected the Finder relay but it still isn't working... Are relays easily damaged? Perhaps I cooked it trying to get it off and then back on again?
I have a Axicom relay, anyone have know if it would work here?

http://tinyurl.com/3y4k6l

-Clay
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jhaible



Joined: May 25, 2007
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Audio files: 24

PostPosted: Sun Mar 09, 2008 3:06 am    Post subject: Re: Relay Reply with quote  Mark this post and the followings unread

morbank wrote:
I connected the bypass switch and reconnected the Finder relay but it still isn't working... Are relays easily damaged? Perhaps I cooked it trying to get it off and then back on again?
I have a Axicom relay, anyone have know if it would work here?

http://tinyurl.com/3y4k6l

-Clay


Does the LED work? (Toggled on and off)

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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morbank



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PostPosted: Sun Mar 09, 2008 4:55 pm    Post subject: Relay Reply with quote  Mark this post and the followings unread

Quote:
Does the LED work? (Toggled on and off)


The LED turned on the first time I tried it with the relay but it didn't toggle on and off. And now it doesn't turn on at all.
-Clay
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jhaible



Joined: May 25, 2007
Posts: 2014
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Audio files: 24

PostPosted: Tue Mar 11, 2008 1:07 am    Post subject: Re: Relay Reply with quote  Mark this post and the followings unread

morbank wrote:
Quote:
Does the LED work? (Toggled on and off)


The LED turned on the first time I tried it with the relay but it didn't toggle on and off. And now it doesn't turn on at all.
-Clay


If the LED doesn't toggle when the "SWITCH" contacts are temorarily shorted, maybe there's a problem in the control circuit around the CD4007.
If it comes on "on" sometimes, and "off" some other times, that might mean the electronic latching function is working, but can't be controlled from the outside ...
To check this, take a look at the components from the SWITCH connector to the CD4007.

To test the relay in the circuit, temporartily short C to E of the relay driving transistor. That should turn the relay and the LED on.

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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morbank



Joined: Jan 30, 2008
Posts: 58
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PostPosted: Wed Mar 12, 2008 10:01 am    Post subject: Relay Reply with quote  Mark this post and the followings unread

Quote:
If the LED doesn't toggle when the "SWITCH" contacts are temporarily shorted, maybe there's a problem in the control circuit around the CD4007.


The LED does not toggle when shorting the Switch contacts.

Quote:
If it comes on "on" sometimes, and "off" some other times, that might mean the electronic latching function is working, but can't be controlled from the outside ...


The LED isn't coming on at all. However it did light the very first time I connected the relay.

Quote:
To check this, take a look at the components from the SWITCH connector to the CD4007.


Soldering looks ok. Here are the specs for the parts I am using, could I be using the wrong parts?

100k - R79 = http://tinyurl.com/2k2fjt
1meg - R78 = http://tinyurl.com/2u2z5u
1n - C30 = http://tinyurl.com/yw8srn

Quote:
To test the relay in the circuit, temporarily short C to E of the relay driving transistor. That should turn the relay and the LED on.


Shorting C to E, I can hear the relay switching but the led doesn't come on.
-Clay
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