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Triple Chorus ("Solina") PCBs re-run: It's official!

Triple Chorus ("Solina") PCBs re-run: It's official!

2009-03-10 by JH.

Thanks to all who showed interest. I'll start another PCB run soon.
If you want to participate, please fill and return the order form below.
(Don't forget the email subject line).
Boards will be rady for shipping in a few weeks. Do *not* pay anything now;
I'll send out invoices when the boards are ready for shipping.
Thank you!

(See http://www.jhaible.heim.at/triple_chorus/triple_chorus.html

for details about the project.)

Pricing is EUR 27.00 per board,

plus a single EUR 6.00 shipping flat charge for worldwide shipping,

regardless how many boards you are ordering and where you live.

It does *not* include any customs fees or tax that you may (or may not) have

to pay in your county.

What you get is a double-sided printed circuit board with component overlay,

approx. size 160mm x 100mmm.

You have to buy the electronic components for this, and build the device,

yourself. (Check the above website regularly for updates and building hints,

bill of matrials etc. A PDF with the component overlay is already there.)

Most components are easily available and cheap standard parts.

In addition to that you need 3 (three) TDA1022 chips. These are BBD chips

that are no longer in production, make sure you can get them before you
order PCBs.

If you want to place an order, please send me an email to the following

adress:

jhaible@...

and use the FOLLOWING FORM (fill in your data instead of [],

for instance: "2 Boards" instead of "[quantity] Boards")

===== Start of Email Order Form ===============

Subject line: Triple Chorus PCB order: [quantity] boards

Email text:

I'm ordering [quantity] pieces of the Triple Chorus PCB

for EUR 27.00 per board + EUR 6.00 single shipping flat charge for any

number of boards.

I'm aware that I may have to pay additional amounts of customs and tax in my

country.

My shipping adress is

[Your Name]

[Your street, number, city, ZIP code, in exactly the form

that is generally used in your country]

[your country]

My paypal adress is [your paypal adress].

I===== End of Email Order Form =========

Looking forward to hear fom you :)

JH.

Re: Triple Chorus ("Solina") PCBs re-run: It's official!

2009-03-11 by patchdub1972

hi. does anyone have advice on where to get the TDA1022 chip? i've searched a bit but haven't had any luck?
thanks


Show quoted textHide quoted text
--- In motm@yahoogroups.com, "JH." <jhaible@...> wrote:
>
> Thanks to all who showed interest. I'll start another PCB run soon.
> If you want to participate, please fill and return the order form below.
> (Don't forget the email subject line).
> Boards will be rady for shipping in a few weeks. Do *not* pay anything now;
> I'll send out invoices when the boards are ready for shipping.
> Thank you!
>
> (See http://www.jhaible.heim.at/triple_chorus/triple_chorus.html
>
> for details about the project.)
>
> Pricing is EUR 27.00 per board,
>
> plus a single EUR 6.00 shipping flat charge for worldwide shipping,
>
> regardless how many boards you are ordering and where you live.
>
> It does *not* include any customs fees or tax that you may (or may not) have
>
> to pay in your county.
>
> What you get is a double-sided printed circuit board with component overlay,
>
> approx. size 160mm x 100mmm.
>
> You have to buy the electronic components for this, and build the device,
>
> yourself. (Check the above website regularly for updates and building hints,
>
> bill of matrials etc. A PDF with the component overlay is already there.)
>
> Most components are easily available and cheap standard parts.
>
> In addition to that you need 3 (three) TDA1022 chips. These are BBD chips
>
> that are no longer in production, make sure you can get them before you
> order PCBs.
>
> If you want to place an order, please send me an email to the following
>
> adress:
>
> jhaible@...
>
> and use the FOLLOWING FORM (fill in your data instead of [],
>
> for instance: "2 Boards" instead of "[quantity] Boards")
>
> ===== Start of Email Order Form ===============
>
> Subject line: Triple Chorus PCB order: [quantity] boards
>
> Email text:
>
> I'm ordering [quantity] pieces of the Triple Chorus PCB
>
> for EUR 27.00 per board + EUR 6.00 single shipping flat charge for any
>
> number of boards.
>
> I'm aware that I may have to pay additional amounts of customs and tax in my
>
> country.
>
> My shipping adress is
>
> [Your Name]
>
> [Your street, number, city, ZIP code, in exactly the form
>
> that is generally used in your country]
>
> [your country]
>
> My paypal adress is [your paypal adress].
>
> I===== End of Email Order Form =========
>
> Looking forward to hear fom you :)
>
> JH.
>

Re: Triple Chorus ("Solina") PCBs re-run: It's official!

2009-03-11 by wjhall11

Hi - check here. The page is still in progress because Will and I are currently building the 3CH, but in the second paragraph, we say where we found our chips. I looked there a couple weeks back and they still had them.

http://www.dragonflyalley.com/constructionJHTripleChorus.htm

Bill


Show quoted textHide quoted text
--- In motm@yahoogroups.com, "patchdub1972" <patchdub@...> wrote:
>
> hi. does anyone have advice on where to get the TDA1022 chip? i've searched a bit but haven't had any luck?
> thanks
>
>
> --- In motm@yahoogroups.com, "JH." <jhaible@> wrote:
> >
> > Thanks to all who showed interest. I'll start another PCB run soon.
> > If you want to participate, please fill and return the order form below.
> > (Don't forget the email subject line).
> > Boards will be rady for shipping in a few weeks. Do *not* pay anything now;
> > I'll send out invoices when the boards are ready for shipping.
> > Thank you!
> >
> > (See http://www.jhaible.heim.at/triple_chorus/triple_chorus.html
> >
> > for details about the project.)
> >
> > Pricing is EUR 27.00 per board,
> >
> > plus a single EUR 6.00 shipping flat charge for worldwide shipping,
> >
> > regardless how many boards you are ordering and where you live.
> >
> > It does *not* include any customs fees or tax that you may (or may not) have
> >
> > to pay in your county.
> >
> > What you get is a double-sided printed circuit board with component overlay,
> >
> > approx. size 160mm x 100mmm.
> >
> > You have to buy the electronic components for this, and build the device,
> >
> > yourself. (Check the above website regularly for updates and building hints,
> >
> > bill of matrials etc. A PDF with the component overlay is already there.)
> >
> > Most components are easily available and cheap standard parts.
> >
> > In addition to that you need 3 (three) TDA1022 chips. These are BBD chips
> >
> > that are no longer in production, make sure you can get them before you
> > order PCBs.
> >
> > If you want to place an order, please send me an email to the following
> >
> > adress:
> >
> > jhaible@
> >
> > and use the FOLLOWING FORM (fill in your data instead of [],
> >
> > for instance: "2 Boards" instead of "[quantity] Boards")
> >
> > ===== Start of Email Order Form ===============
> >
> > Subject line: Triple Chorus PCB order: [quantity] boards
> >
> > Email text:
> >
> > I'm ordering [quantity] pieces of the Triple Chorus PCB
> >
> > for EUR 27.00 per board + EUR 6.00 single shipping flat charge for any
> >
> > number of boards.
> >
> > I'm aware that I may have to pay additional amounts of customs and tax in my
> >
> > country.
> >
> > My shipping adress is
> >
> > [Your Name]
> >
> > [Your street, number, city, ZIP code, in exactly the form
> >
> > that is generally used in your country]
> >
> > [your country]
> >
> > My paypal adress is [your paypal adress].
> >
> > I===== End of Email Order Form =========
> >
> > Looking forward to hear fom you :)
> >
> > JH.
> >
>

Re: Triple Chorus ("Solina") PCBs re-run: It's official!

2009-03-11 by patchdub1972

thanks bill! as always so helpful.
is this it?...
TDA1022-P 512-Stage BBD - DIP16
thanks again.

Show quoted textHide quoted text
--- In motm@yahoogroups.com, "wjhall11" <wjhall@...> wrote:
>
> Hi - check here. The page is still in progress because Will and I are currently building the 3CH, but in the second paragraph, we say where we found our chips. I looked there a couple weeks back and they still had them.
>
> http://www.dragonflyalley.com/constructionJHTripleChorus.htm
>
> Bill
>
>
> --- In motm@yahoogroups.com, "patchdub1972" <patchdub@> wrote:
> >
> > hi. does anyone have advice on where to get the TDA1022 chip? i've searched a bit but haven't had any luck?
> > thanks
> >
> >
> > --- In motm@yahoogroups.com, "JH." <jhaible@> wrote:
> > >
> > > Thanks to all who showed interest. I'll start another PCB run soon.
> > > If you want to participate, please fill and return the order form below.
> > > (Don't forget the email subject line).
> > > Boards will be rady for shipping in a few weeks. Do *not* pay anything now;
> > > I'll send out invoices when the boards are ready for shipping.
> > > Thank you!
> > >
> > > (See http://www.jhaible.heim.at/triple_chorus/triple_chorus.html
> > >
> > > for details about the project.)
> > >
> > > Pricing is EUR 27.00 per board,
> > >
> > > plus a single EUR 6.00 shipping flat charge for worldwide shipping,
> > >
> > > regardless how many boards you are ordering and where you live.
> > >
> > > It does *not* include any customs fees or tax that you may (or may not) have
> > >
> > > to pay in your county.
> > >
> > > What you get is a double-sided printed circuit board with component overlay,
> > >
> > > approx. size 160mm x 100mmm.
> > >
> > > You have to buy the electronic components for this, and build the device,
> > >
> > > yourself. (Check the above website regularly for updates and building hints,
> > >
> > > bill of matrials etc. A PDF with the component overlay is already there.)
> > >
> > > Most components are easily available and cheap standard parts.
> > >
> > > In addition to that you need 3 (three) TDA1022 chips. These are BBD chips
> > >
> > > that are no longer in production, make sure you can get them before you
> > > order PCBs.
> > >
> > > If you want to place an order, please send me an email to the following
> > >
> > > adress:
> > >
> > > jhaible@
> > >
> > > and use the FOLLOWING FORM (fill in your data instead of [],
> > >
> > > for instance: "2 Boards" instead of "[quantity] Boards")
> > >
> > > ===== Start of Email Order Form ===============
> > >
> > > Subject line: Triple Chorus PCB order: [quantity] boards
> > >
> > > Email text:
> > >
> > > I'm ordering [quantity] pieces of the Triple Chorus PCB
> > >
> > > for EUR 27.00 per board + EUR 6.00 single shipping flat charge for any
> > >
> > > number of boards.
> > >
> > > I'm aware that I may have to pay additional amounts of customs and tax in my
> > >
> > > country.
> > >
> > > My shipping adress is
> > >
> > > [Your Name]
> > >
> > > [Your street, number, city, ZIP code, in exactly the form
> > >
> > > that is generally used in your country]
> > >
> > > [your country]
> > >
> > > My paypal adress is [your paypal adress].
> > >
> > > I===== End of Email Order Form =========
> > >
> > > Looking forward to hear fom you :)
> > >
> > > JH.
> > >
> >
>

Re: [motm] Re: Triple Chorus ("Solina") PCBs re-run: It's official!

2009-03-11 by Erik Ribeiro

Anyone try Match-a-Knob? I don't know if they actually have them.
What about CTG?
Just searching for some US suppliers. I don't really know the ABCs of buying component from places other than Mouser, so I fear the perils. At least Vintage Planet seems aimed at the synth community, but I don't know if it's worth the extra cost.

Erik

Show quoted textHide quoted text
From: wjhall11 <wjhall@...>
To: motm@yahoogroups.com
Sent: Wednesday, March 11, 2009 1:25:49 AM
Subject: [motm] Re: Triple Chorus ("Solina") PCBs re-run: It's official!

Hi - check here. The page is still in progress because Will and I are currently building the 3CH, but in the second paragraph, we say where we found our chips. I looked there a couple weeks back and they still had them.

http://www.dragonfl yalley.com/ constructionJHTr ipleChorus. htm

Bill

--- In motm@yahoogroups. com, "patchdub1972" <patchdub@.. .> wrote:
>
> hi. does anyone have advice on where to get the TDA1022 chip? i've searched a bit but haven't had any luck?
> thanks
>
>
> --- In motm@yahoogroups. com, "JH." <jhaible@> wrote:
> >
> > Thanks to all who showed interest. I'll start another PCB run soon.
> > If you want to participate, please fill and return the order form below.
> > (Don't forget the email subject line).
> > Boards will be rady for shipping in a few weeks. Do *not* pay anything now;
> > I'll send out invoices when the boards are ready for shipping.
> > Thank you!
> >
> > (See http://www.jhaible. heim.at/triple_ chorus/triple_ chorus.html
> >
> > for details about the project.)
> >
> > Pricing is EUR 27.00 per board,
> >
> > plus a single EUR 6.00 shipping flat charge for worldwide shipping,
> >
> > regardless how many boards you are ordering and where you live.
> >
> > It does *not* include any customs fees or tax that you may (or may not) have
> >
> > to pay in your county.
> >
> > What you get is a double-sided printed circuit board with component overlay,
> >
> > approx. size 160mm x 100mmm.
> >
> > You have to buy the electronic components for this, and build the device,
> >
> > yourself. (Check the above website regularly for updates and building hints,
> >
> > bill of matrials etc. A PDF with the component overlay is already there.)
> >
> > Most components are easily available and cheap standard parts.
> >
> > In addition to that you need 3 (three) TDA1022 chips. These are BBD chips
> >
> > that are no longer in production, make sure you can get them before you
> > order PCBs.
> >
> > If you want to place an order, please send me an email to the following
> >
> > adress:
> >
> > jhaible@
> >
> > and use the FOLLOWING FORM (fill in your data instead of [],
> >
> > for instance: "2 Boards" instead of "[quantity] Boards")
> >
> > ===== Start of Email Order Form ============ ===
> >
> > Subject line: Triple Chorus PCB order: [quantity] boards
> >
> > Email text:
> >
> > I'm ordering [quantity] pieces of the Triple Chorus PCB
> >
> > for EUR 27.00 per board + EUR 6.00 single shipping flat charge for any
> >
> > number of boards.
> >
> > I'm aware that I may have to pay additional amounts of customs and tax in my
> >
> > country.
> >
> > My shipping adress is
> >
> > [Your Name]
> >
> > [Your street, number, city, ZIP code, in exactly the form
> >
> > that is generally used in your country]
> >
> > [your country]
> >
> > My paypal adress is [your paypal adress].
> >
> > I===== End of Email Order Form =========
> >
> > Looking forward to hear fom you :)
> >
> > JH.
> >
>

Suitable Wire Guage Questions

2009-03-11 by Ti_

So, we know 22 guage is what's used with MOTM modules for non-audio connections, but is there a minimum or maximum gauge to go by?
I've got a whole mess of 24 guage wire I've scrapped from dead things at work, would that still be too thin?
Also have a bunch of 18 gauge which I guess could be a be unwieldy, but would Too big of wire to a reasonable size add any problems?
Last, I've got a big bunch of rg-174. How long could I possibly run it to make normalizing cables inside the modular without problems, 2,3,4 feet or more?
Thanks,
Tim


Re: [motm] Suitable Wire Guage Questions

2009-03-12 by Paul Schreiber

a) well, it depends on your use of the term 'suitable' :)
- the smaller the number, the larger the diameter of the wire (seems backwards, no)
- the gauge is mostly used for carrying *current* (not voltage, that's the rating of the *insulation*)
- excluding the power supply connector, just about any wire gauge from 22 to 28 is OK.
Bonus question #1: so, why did I choose 22ga wire?
- for the power supply side, 18ga is a minimum. When I wire up inside cabinets, I use 16ga wire.
- you can run RG-174 cable quite long without issues (10ft or more)
Bonus question #2: what is the limiting factor on how long you can run coax?
Paul S.
Show quoted textHide quoted text
----- Original Message -----
From: Ti_
To: MOTM
Sent: Wednesday, March 11, 2009 6:56 PM
Subject: [motm] Suitable Wire Guage Questions

So, we know 22 guage is what's used with MOTM modules for non-audio connections, but is there a minimum or maximum gauge to go by?
I've got a whole mess of 24 guage wire I've scrapped from dead things at work, would that still be too thin?
Also have a bunch of 18 gauge which I guess could be a be unwieldy, but would Too big of wire to a reasonable size add any problems?
Last, I've got a big bunch of rg-174. How long could I possibly run it to make normalizing cables inside the modular without problems, 2,3,4 feet or more?
Thanks,
Tim


RE: [motm] Suitable Wire Guage Questions

2009-03-12 by John L Rice

Hi Tim,

I think in most cases for modular synth use, going a gauge or three in either direction isn’t going to be particularly critical since the distances are relatively short. The Oakley MultiMix modules I just built specified using 26 gauge for the PCB to audio jack connections, probably because it used small MTA connectors, and it seems to work well and sound fine.

The main reason not to use too fat of a wire gauge is that it may not fit through the holes in the PCB or switches etc. and things like crimp connectors and MTA connects etc have a narrow range of allowable gauges for them to work correctly. Unless you are getting into lengths (cumulative or one piece) of 10s to 100s of feet, the main concern would be handling and reliability IMHO. Too thin of a wire might be hard to work with, especially with big hands, and it can often be too fragile. Too fat of a wire may be too stiff and hard to place easily and being stiffer, could possibly cause PCB traces to lift or break if the wire is moved.

I personally like to lean towards using the biggest ‘reasonable’ size but . . if you look at the chart bellow and you used a 1 foot piece of 24 gauge instead of a 1 foot piece of 22 gauge, you’d only be adding just over one hundredth of an ohm in resistance! When you consider that a 1% 1k ohm resistor in your circuit can be as much as 10 ohms off in either direction, going a gauge step or two in either direction shouldn’t be a concern.

And the shielded cable shouldn’t be a concern either. Think about how long microphone snakes are for concert mixing consoles (100 to 300 feet long typically) and the signals are often much weaker. 4 or 5 foot pieces inside your modular shouldn’t be an issue. ;-)

From http://www.epanorama.net/documents/wiring/wire_resistance.html

Wire Gauge Resistance per foot

4 .000292

6 .000465

8 .000739

10 .00118

12 .00187

14 .00297

16 .00473

18 .00751

20 .0119

22 .0190

24 .0302

26 .0480

28 .0764

John L Rice

From: motm@yahoogroups.com [mailto:motm@yahoogroups.com] On Behalf Of Ti_
Sent: Wednesday, March 11, 2009 4:56 PM
To: MOTM
Subject: [motm] Suitable Wire Guage Questions

So, we know 22 guage is what's used with MOTM modules for non-audio connections, but is there a minimum or maximum gauge to go by?
I've got a whole mess of 24 guage wire I've scrapped from dead things at work, would that still be too thin?
Also have a bunch of 18 gauge which I guess could be a be unwieldy, but would Too big of wire to a reasonable size add any problems?
Last, I've got a big bunch of rg-174. How long could I possibly run it to make normalizing cables inside the modular without problems, 2,3,4 feet or more?
Thanks,
Tim





RE: [motm] Suitable Wire Guage Questions

2009-03-12 by John L Rice

Heh, see? (I says to myself!) It took me over 30 minutes to type my response, mean while someone more qualified to answer like Paul responded. I could have been doing something more productive . . . . but . . I’m home sick so . . . I’ll cut myself some slack. ;-)

John L Rice

From: motm@yahoogroups.com [mailto:motm@yahoogroups.com] On Behalf Of Paul Schreiber
Sent: Wednesday, March 11, 2009 5:12 PM
To: MOTM; Ti_
Subject: Re: [motm] Suitable Wire Guage Questions

a) well, it depends on your use of the term 'suitable' :)

- the smaller the number, the larger the diameter of the wire (seems backwards, no)

- the gauge is mostly used for carrying *current* (not voltage, that's the rating of the *insulation*)

- excluding the power supply connector, just about any wire gauge from 22 to 28 is OK.

Bonus question #1: so, why did I choose 22ga wire?

- for the power supply side, 18ga is a minimum. When I wire up inside cabinets, I use 16ga wire.

- you can run RG-174 cable quite long without issues (10ft or more)

Bonus question #2: what is the limiting factor on how long you can run coax?

Paul S.

----- Original Message -----

From: Ti_

To: MOTM

Sent: Wednesday, March 11, 2009 6:56 PM

Subject: [motm] Suitable Wire Guage Questions

So, we know 22 guage is what's used with MOTM modules for non-audio connections, but is there a minimum or maximum gauge to go by?
I've got a whole mess of 24 guage wire I've scrapped from dead things at work, would that still be too thin?
Also have a bunch of 18 gauge which I guess could be a be unwieldy, but would Too big of wire to a reasonable size add any problems?
Last, I've got a big bunch of rg-174. How long could I possibly run it to make normalizing cables inside the modular without problems, 2,3,4 feet or more?
Thanks,
Tim




Re: [motm] Suitable Wire Guage Questions

2009-03-12 by Ti_

Even though it may have taken a little while, the whole world still doesn't move as fast as the internet and I just got home from other activities Outside of the house to some good answers, so no one should worry about being the first! Many thanks for the answers already!
~Tim

Show quoted textHide quoted text
From: John L Rice <Drummer@...>
To: MOTM <motm@yahoogroups.com>
Sent: Wednesday, March 11, 2009 7:48:40 PM
Subject: RE: [motm] Suitable Wire Guage Questions

Heh, see? (I says to myself!) It took me over 30 minutes to type my response, mean while someone more qualified to answer like Paul responded. I could have been doing something more productive . . . . but . . I’m home sick so . . . I’ll cut myself some slack. ;-)

John L Rice

From: motm@yahoogroups. com [mailto:motm@ yahoogroups. com] On Behalf Of Paul Schreiber
Sent: Wednesday, March 11, 2009 5:12 PM
To: MOTM; Ti_
Subject: Re: [motm] Suitable Wire Guage Questions

a) well, it depends on your use of the term 'suitable' :)

- the smaller the number, the larger the diameter of the wire (seems backwards, no)

- the gauge is mostly used for carrying *current* (not voltage, that's the rating of the *insulation* )

- excluding the power supply connector, just about any wire gauge from 22 to 28 is OK.

Bonus question #1: so, why did I choose 22ga wire?

- for the power supply side, 18ga is a minimum. When I wire up inside cabinets, I use 16ga wire.

- you can run RG-174 cable quite long without issues (10ft or more)

Bonus question #2: what is the limiting factor on how long you can run coax?

Paul S.

----- Original Message -----

From: Ti_

To: MOTM

Sent: Wednesday, March 11, 2009 6:56 PM

Subject: [motm] Suitable Wire Guage Questions

So, we know 22 guage is what's used with MOTM modules for non-audio connections, but is there a minimum or maximum gauge to go by?
I've got a whole mess of 24 guage wire I've scrapped from dead things at work, would that still be too thin?
Also have a bunch of 18 gauge which I guess could be a be unwieldy, but would Too big of wire to a reasonable size add any problems?
Last, I've got a big bunch of rg-174. How long could I possibly run it to make normalizing cables inside the modular without problems, 2,3,4 feet or more?
Thanks,
Tim





Re: [motm] Re: Triple Chorus ("Solina") PCBs re-run: It's official!

2009-03-12 by eric f

I have to say that your project pages are an inspiration. I feel so much more comfortable and confident approaching projects when I can put one of your pages in front of me.

cheers,
eric f

Show quoted textHide quoted text
--- On Wed, 3/11/09, wjhall11 <wjhall@...> wrote:
From: wjhall11 <wjhall@...>
Subject: [motm] Re: Triple Chorus ("Solina") PCBs re-run: It's official!
To: motm@yahoogroups.com
Date: Wednesday, March 11, 2009, 1:25 AM

Hi - check here. The page is still in progress because Will and I are currently building the 3CH, but in the second paragraph, we say where we found our chips. I looked there a couple weeks back and they still had them.

http://www.dragonfl yalley.com/ constructionJHTr ipleChorus. htm

Bill

--- In motm@yahoogroups. com, "patchdub1972" <patchdub@.. .> wrote:
>
> hi. does anyone have advice on where to get the TDA1022 chip? i've searched a bit but haven't had any luck?
> thanks
>
>
> --- In motm@yahoogroups. com, "JH." <jhaible@> wrote:
> >
> > Thanks to all who showed interest. I'll start another PCB run soon.
> > If you want to participate, please fill and return the order form below.
> > (Don't forget the email subject line).
> > Boards will be rady for shipping in a few weeks. Do *not* pay anything now;
> > I'll send out invoices when the boards are ready for shipping.
> > Thank you!
> >
> > (See http://www.jhaible. heim.at/triple_ chorus/triple_ chorus.html
> >
> > for details about the project.)
> >
> > Pricing is EUR 27.00 per board,
> >
> > plus a single EUR 6.00 shipping flat charge for worldwide shipping,
> >
> > regardless how many boards you are ordering and where you live.
> >
> > It does *not* include any customs fees or tax that you may (or may not) have
> >
> > to pay in your county.
> >
> > What you get is a double-sided printed circuit board with component overlay,
> >
> > approx. size 160mm x 100mmm.
> >
> > You have to buy the electronic components for this, and build the device,
> >
> > yourself. (Check the above website regularly for updates and building hints,
> >
> > bill of matrials etc. A PDF with the component overlay is already there.)
> >
> > Most components are easily available and cheap standard parts.
> >
> > In addition to that you need 3 (three) TDA1022 chips. These are BBD chips
> >
> > that are no longer in production, make sure you can get them before you
> > order PCBs.
> >
> > If you want to place an order, please send me an email to the following
> >
> > adress:
> >
> > jhaible@
> >
> > and use the FOLLOWING FORM (fill in your data instead of [],
> >
> > for instance: "2 Boards" instead of "[quantity] Boards")
> >
> > ===== Start of Email Order Form ============ ===
> >
> > Subject line: Triple Chorus PCB order: [quantity] boards
> >
> > Email text:
> >
> > I'm ordering [quantity] pieces of the Triple Chorus PCB
> >
> > for EUR 27.00 per board + EUR 6.00 single shipping flat charge for any
> >
> > number of boards.
> >
> > I'm aware that I may have to pay additional amounts of customs and tax in my
> >
> > country.
> >
> > My shipping adress is
> >
> > [Your Name]
> >
> > [Your street, number, city, ZIP code, in exactly the form
> >
> > that is generally used in your country]
> >
> > [your country]
> >
> > My paypal adress is [your paypal adress].
> >
> > I===== End of Email Order Form =========
> >
> > Looking forward to hear fom you :)
> >
> > JH.
> >
>

Re: [motm] Suitable Wire Guage Questions

2009-03-12 by Scott E.

I never saw a response to Paul's bonus questions, so I'll take a shot.

#1. Does 22ga allow for the same drilling size as through hole? Hence
lower setup costs for production run.

#2. My guess is DC resistance on coax affecting output impedances.
Don't have a clue what the length limit would be tho.

Scott E.
===============================================================================
Paul Schreiber wrote:
Show quoted textHide quoted text
>
> a) well, it depends on your use of the term 'suitable' :)
>
> - the smaller the number, the larger the diameter of the wire (seems
> backwards, no)
> - the gauge is mostly used for carrying *current* (not voltage, that's
> the rating of the *insulation*)
> - excluding the power supply connector, just about any wire gauge from
> 22 to 28 is OK.
>
> Bonus question #1: so, why did I choose 22ga wire?
>
> - for the power supply side, 18ga is a minimum. When I wire up inside
> cabinets, I use 16ga wire.
> - you can run RG-174 cable quite long without issues (10ft or more)
>
> Bonus question #2: what is the limiting factor on how long you can run
> coax?
>
> Paul S.
>
>
> ----- Original Message -----
> *From:* Ti_ <mailto:shari_en_jin@...>
> *To:* MOTM <mailto:motm@yahoogroups.com>
> *Sent:* Wednesday, March 11, 2009 6:56 PM
> *Subject:* [motm] Suitable Wire Guage Questions
>
> So, we know 22 guage is what's used with MOTM modules for
> non-audio connections, but is there a minimum or maximum gauge to
> go by?
> I've got a whole mess of 24 guage wire I've scrapped from dead
> things at work, would that still be too thin?
> Also have a bunch of 18 gauge which I guess could be a be
> unwieldy, but would Too big of wire to a reasonable size add any
> problems?
> Last, I've got a big bunch of rg-174. How long could I possibly
> run it to make normalizing cables inside the modular without
> problems, 2,3,4 feet or more?
> Thanks,
> Tim
>
>
>