| If I'd make a string chorus PCB, what kind of multi-BBD circuit would you prefer? |
| Solina style (also: Crumar Performer, Böhm Phasing Rotor, and others) |
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62% |
[ 28 ] |
| ARP Omni style |
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13% |
[ 6 ] |
| Elka Synthex 4 BBD circuit |
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11% |
[ 5 ] |
| other (please name in thread) |
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6% |
[ 3 ] |
| I would want neither - it's old fashioned and overused, and if I need it, there are digital FX boxes |
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6% |
[ 3 ] |
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| Total Votes : 45 |
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guitarfool
Joined: Feb 26, 2007
Posts: 163
Location: Maryland
Audio files: 8
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 Posted: Fri Dec 07, 2007 5:07 pm Post subject:
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| I got mine today - woohoo! |
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jhaible
Joined: May 25, 2007
Posts: 2014
Location: Germany
Audio files: 24
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| Posted: Fri Dec 07, 2007 5:44 pm Post subject:
Re: JH. Triple Chorus – Connections Diagram with 1p2t switch |
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| Stavros wrote: |
The Roll off switch is the one that selects between the ‘Solina’ mode, when ON, (12 kHz filter – slightly darker sound?) and the Linear mode, when OFF (16 kHz Filter – broadband sound?). |
Right.
| Quote: | | The EQ switch selects, when ON, the equalization mode. The position of the Roll off switch ON or OFF, plays no role in this situation. |
Right.
| Quote: | The Modulation switch when ON brings towards the ‘Main Output’ the modulated signal ‘Wet’.
The modulated- ‘wet’ signal will reach the ‘Main Output’ only if the FX (what FX stands for please?) switch is ON.
When the FX switch is OFF then at the Main Output exists the ‘Dry’ signal no matter what other switch combinations exist.
If the Modulation Switch is OFF and the FX switch is ON then at the Main Output we have the unmodulated but filtered signal. |
Right!
| Quote: | | Could we eliminate the FX switch thus having always the Modulated or the Filtered signal on the Main output and have the ‘Dry’ signal on an output of its own? |
Yes of course you can. These are just ideas / suggestions how you can wire and switch the hole thing.
The idea is to have a buffered but otherwise unaltered signal when "FX" ("effects") switch is off. Or a filtered, but not chorused signal, when "Modulation" is off. But if you don't need any one of these options, just omit the switch and hard wire it.
You can even omit all the switches, go into th ecircuit at the In connector, get out of the circuit at the Out connector, and always have a chorused signal.
| Quote: | | Is the Modulation trimmer, the trimmer for choosing between Dr. Boehm and Solina way? |
... and anything in between.
| Quote: | | What kind of signal could be directed to the ‘Input’ e.g. VCF, Mixer out, VCO wave? |
Whatever you like, if you have that 50k log input level potentiometer, as shown here http://www.jhaible.heim.at/triple_chorus/jh_triple_chorus_connections_1p2t_switches.pdf
If you don't want to have that potentiometer, you can adjust the input gain by altering R34 (refering to http://www.jhaible.heim.at/triple_chorus/jh_triple_chorus_sch_page1.pdf):
47k means roughly 6dB gain. 100k would mean roughly unity gain.
But due to the operation of the 3 delay lines, which will increase the peak-to-peak amplitude of the signal without increasing its perceived loudness, you can not expect really high level output signals from the board.
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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Stavros
Joined: Oct 30, 2007
Posts: 36
Location: Athens-Greece
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| Posted: Sat Dec 08, 2007 4:07 am Post subject:
Re: JH. Triple Chorus – Connections Diagram with 1p2t switch |
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Many Thanks Jurgen
SG |
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softfin
Joined: Oct 11, 2006
Posts: 271
Location: Far in the north
Audio files: 1
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| Posted: Mon Dec 10, 2007 8:48 am Post subject:
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| Received my boards today, thanks Jurgen! |
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pdub
Joined: Jun 08, 2007
Posts: 14
Location: california
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| Posted: Mon Dec 10, 2007 11:03 pm Post subject:
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Got mine today! Thanks!
Charles. |
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numbernone
Joined: Aug 16, 2006
Posts: 477
Location: new york city
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| Posted: Wed Dec 12, 2007 2:31 pm Post subject:
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My board arrived today YAY!!
Cant wait to put it the JH envelope at home with my Tau, and wait for its friends the Compact A and Frequency shifters. Ultimately they will all end up in one nice high quality unit. I aint even thinking about starting on any of these until I can clear some serious space and time. Tho I do like looking at the boards becasue they are dense gorgeous monsters. |
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eframp
Joined: Sep 11, 2007
Posts: 25
Location: Atlanta, GA
Audio files: 2
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| Posted: Thu Dec 13, 2007 8:58 am Post subject:
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| got mine today - woohoo! |
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Stavros
Joined: Oct 30, 2007
Posts: 36
Location: Athens-Greece
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| Posted: Thu Dec 13, 2007 2:16 pm Post subject:
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I also got mine today,
many thanks and Regards
SG |
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The Alison Project
Joined: Jul 21, 2006
Posts: 187
Location: Canada
Audio files: 2
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numbernone
Joined: Aug 16, 2006
Posts: 477
Location: new york city
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| Posted: Fri Dec 14, 2007 12:24 pm Post subject:
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YAY got my TDAs from Grandata today
NOT SO YAY they are definitely pulled from something else!!! Many bent pins!!! That I can deal with...BUT one pin has snapped off completely!!! There is the upper half of the pin still intact. anyone have a great idea about how to utilise it?? I imagine that I can stick a bit of resistor lead into the socket before hand and then solder it to the remaining nub on the chip??? Or am i up the creek without a pin1?? |
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whomper
Joined: Dec 15, 2007
Posts: 201
Location: Israel
Audio files: 2
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| Posted: Sat Dec 15, 2007 10:27 am Post subject:
A newbe Q re power supply |
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Hi,
I am sorry for such a basic question  but will want to power both the Tau and Solina using one power supply in a parallel feed.
What power supply should I use, AC or DC? What's the recommended amp?
Thanks,
Whomper |
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jhaible
Joined: May 25, 2007
Posts: 2014
Location: Germany
Audio files: 24
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| Posted: Sat Dec 15, 2007 10:49 am Post subject:
Re: A newbe Q re power supply |
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| whomper wrote: | Hi,
I am sorry for such a basic question but will want to power both the Tau and Solina using one power supply in a parallel feed.
What power supply should I use, AC or DC? What's the recommended amp?
Thanks,
Whomper |
If you want to feed parallel, you *must* go for +/-15V DC on both boards.
(Build the MOTM version in that case, without the rectifiers and bic electrolytic storage caps.
Do *not* feed them both from the same AC source!
But really, if you don't have a +/- 15V supply _already_, it's easier to just use two 16 ... 18V AC wallwarts, by far.
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
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| Posted: Sat Dec 15, 2007 2:31 pm Post subject:
Re: A newbe Q re power supply |
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| jhaible wrote: | | whomper wrote: | Hi,
I am sorry for such a basic question but will want to power both the Tau and Solina using one power supply in a parallel feed.
What power supply should I use, AC or DC? What's the recommended amp?
Thanks,
Whomper |
If you want to feed parallel, you *must* go for +/-15V DC on both boards.
(Build the MOTM version in that case, without the rectifiers and bic electrolytic storage caps.
Do *not* feed them both from the same AC source!
But really, if you don't have a +/- 15V supply _already_, it's easier to just use two 16 ... 18V AC wallwarts, by far.
JH. |
It seems like I only find VDC around. Can I connect 15VDC 1.5A to both boards? Is it enough amper?
Whomper |
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jhaible
Joined: May 25, 2007
Posts: 2014
Location: Germany
Audio files: 24
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| Posted: Sat Dec 15, 2007 4:01 pm Post subject:
Re: A newbe Q re power supply |
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| whomper wrote: | | jhaible wrote: | | whomper wrote: | Hi,
I am sorry for such a basic question but will want to power both the Tau and Solina using one power supply in a parallel feed.
What power supply should I use, AC or DC? What's the recommended amp?
Thanks,
Whomper |
If you want to feed parallel, you *must* go for +/-15V DC on both boards.
(Build the MOTM version in that case, without the rectifiers and bic electrolytic storage caps.
Do *not* feed them both from the same AC source!
But really, if you don't have a +/- 15V supply _already_, it's easier to just use two 16 ... 18V AC wallwarts, by far.
JH. |
It seems like I only find VDC around. Can I connect 15VDC 1.5A to both boards? Is it enough amper?
Whomper |
You need +/-15V (= two 15V DC sources) for the Tau, and just a single -15V DC source for the Triple Chorus. You can only connect DC when the boards are modified as documented on my web site. (Look for "MOTM version".) 1.5A is plenty. What you need is more in the 0.1A range.
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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vtl5c3
Joined: Sep 08, 2006
Posts: 425
Location: PDX
Audio files: 13
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| Posted: Sun Dec 16, 2007 10:56 am Post subject:
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For those who still need them, Chipforbrains is selling TDA 1022s on ebay. Reasonable price (US $4.89). Ordered 5 for myself. Looks like theres around 85 units left.
RF |
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Usine Karate
Joined: Jun 09, 2007
Posts: 64
Location: Hackney Wick
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| Posted: Sun Dec 16, 2007 11:47 am Post subject:
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Thanks for the heads up Vtl5c3, ordered mine. I did a little search on Chipforbains, I'm guessing they are a reputable dealer?
On another topic, has anyone designed any panel layouts for their triple chorus? I'm roughing one out at the moment and it'd be good to see what others are doing.
Usine |
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jhaible
Joined: May 25, 2007
Posts: 2014
Location: Germany
Audio files: 24
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| Posted: Sun Dec 16, 2007 1:54 pm Post subject:
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I've designed a 1U rackmount panel.
And I know of someone who is working on a MOTM panel.
JH.
| Description: |
50% sized PDF of my 1HE Schaeffer panel.
The original is white lettering on blue backround. |
|
Download (listen) |
| Filename: |
jh_triple_chorus_1HE.pdf |
| Filesize: |
29.59 KB |
| Downloaded: |
310 Time(s) |
_________________
"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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Usine Karate
Joined: Jun 09, 2007
Posts: 64
Location: Hackney Wick
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| Posted: Sun Dec 16, 2007 2:17 pm Post subject:
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Thanks JH,
I'm working on a Blacet design and I'm not sure what to include (ie. bringing all the trimmers to the front) So it's good to see what others are doing.
Is the knob next to the modulation switch R337 ?
Also wondering how to calibrate this to get the 'Solina' sound (R173, R294), will I need an oscilloscope? Or is 'by ear' the best fashion?
Thanks
Usine |
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vtl5c3
Joined: Sep 08, 2006
Posts: 425
Location: PDX
Audio files: 13
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| Posted: Sun Dec 16, 2007 3:49 pm Post subject:
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| Usine Karate wrote: | | Thanks for the heads up Vtl5c3, ordered mine. I did a little search on Chipforbains, I'm guessing they are a reputable dealer? |
I've heard that he is good to do business with. As for personal experience, I bought a batch of 6 SSM2044s from CFB and got 6 good chips for a very reasonable price. 
it's HK SuperSeller that I'm wary of.  |
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prophei
Joined: Jan 27, 2007
Posts: 234
Location: san francisco, ca
Audio files: 4
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| Posted: Sun Dec 16, 2007 7:01 pm Post subject:
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| got mine too! thanks jurgen |
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The Alison Project
Joined: Jul 21, 2006
Posts: 187
Location: Canada
Audio files: 2
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| Posted: Sun Dec 16, 2007 8:24 pm Post subject:
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| Usine Karate wrote: | Thanks for the heads up Vtl5c3, ordered mine. I did a little search on Chipforbains, I'm guessing they are a reputable dealer?
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I've done two orders with Chipforbrains and both orders went smoothly, one even included some extras... I would order from again.
_________________
-
The Alison Project
www.thealisonproject.com
www.myspace.com/theyakuzacowboys |
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germaniac
Joined: Aug 04, 2006
Posts: 200
Location: California
Audio files: 7
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| Posted: Mon Dec 17, 2007 12:09 pm Post subject:
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Hey JH, got my PCBs--top notch!  Thanks!
Hey vtl5c3, thanks for the 1022 head's up! I got some extras, so I'll be ready for more JH BBD projects, or have some spares in case somebody's really desperate. . . .
Regards,
Joe |
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vtl5c3
Joined: Sep 08, 2006
Posts: 425
Location: PDX
Audio files: 13
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| Posted: Mon Dec 17, 2007 12:46 pm Post subject:
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| Got my board today! Can't wait to stuff and solder this bad boy! |
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whomper
Joined: Dec 15, 2007
Posts: 201
Location: Israel
Audio files: 2
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| Posted: Mon Dec 17, 2007 1:43 pm Post subject:
Power Supply |
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I am having trouble finding a 16VAC power supply for the board that works at 220V.
Anyone with a good online shop that carries 220V 16VAC power supply?
Thanks,
Whomper |
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norman phay
Joined: Jun 29, 2007
Posts: 176
Location: North-East England
Audio files: 1
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| Posted: Tue Dec 18, 2007 10:06 am Post subject:
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| Boards arrived today. Tons of thanks, JH. |
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