Cgs synth

On 1/19/06, c10h14no2i <c10h14no2i@...> wrote:
>
> When im buying components to build my modules, does it matter which IC
> I buy? many of them have letters listed on the end of them that are
> not listed on the parts list. Say I need a tl071, do I get a tl071SM
> CD ACM ACP, etc.... Even simple parts like resistors and caps give me
> many options. I know this is some basic electronic stuff, and I
> should know it by now, but Im learning.
> (this is why I ordered my first few modules as kits from elby.. but
> Ive already picked out a few more that I want, and would like to get
> only the PCB's this time)
>
>
>
>
>
>
>
> The CGS Modular Synth home page: http://www.cgs.synth.net/
>
>
>
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--
listen to my tunes,

http://www.cubanpetemusic.com/12_21_04%20final%20mix.mp3

www.cubanpetemusic.com


[Non-text portions of this message have been removed]

>When im buying components to build my modules, does it matter which IC
>I buy? many of them have letters listed on the end of them that are
>not listed on the parts list. Say I need a tl071, do I get a tl071SM
>CD ACM ACP, etc.... Even simple parts like resistors and caps give me
>many options. I know this is some basic electronic stuff, and I
>should know it by now, but Im learning.
>(this is why I ordered my first few modules as kits from elby.. but
>Ive already picked out a few more that I want, and would like to get
>only the PCB's this time)
>
>
>
>
>
>
>
>The CGS Modular Synth home page: http://www.cgs.synth.net/
>
>Yahoo! Groups Links
>
>
>
>
>
>
>

>Often these letters refer to the type of packaging the chip comes in.
>Sometimes it makes no difference (except maybe to the price) - plastic or
>ceramic for example. Some times it does make a difference - DIP or surface
>mount for example. The datasheet should give the details, even if the
>catalog doesn't.
>
>I don't specify this because these can vary brand to brand. If I say TL071,
>what I am saying is "any brand or package of TL071 that will fit on the board".
>
>With electros, the voltage on it needs to be equal to, or higher, than the
>one I give.
>
>Resistors need to be at least 1/4W (the standard for small resistors),
>though higher ratings that will physically fit are okay. As for resistors,
>5% tollerance is assumed if no value is given, though using 2% or 1%
>resistors is fine. In fact, the preferred resistor type is metal film 1%,
>but they do cost a little more.
>
>Ken
>
>
>
>>When im buying components to build my modules, does it matter which IC
>>I buy? many of them have letters listed on the end of them that are
>>not listed on the parts list. Say I need a tl071, do I get a tl071SM
>>CD ACM ACP, etc.... Even simple parts like resistors and caps give me
>>many options. I know this is some basic electronic stuff, and I
>>should know it by now, but Im learning.
>>(this is why I ordered my first few modules as kits from elby.. but
>>Ive already picked out a few more that I want, and would like to get
>>only the PCB's this time)
>>
>>
>>
>>
>>
>>
>>
>>The CGS Modular Synth home page: http://www.cgs.synth.net/
>>
>>Yahoo! Groups Links
>>
>>
>>
>>
>>
>>
>>
>>
>>
>_______________________________________________________________________
>Ken Stone sasami@... or sasami@...
>Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
>Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>
>
>
>
>The CGS Modular Synth home page: http://www.cgs.synth.net/
>
>Yahoo! Groups Links
>
>
>
>
>
>
>
>
>
>
>

On Jan 19, 2006, at 7:01 PM, Richard Brewster wrote:

> I buy resistors from Mouser. http://www.mouser.com
>
> I always buy the 1% metal film, the 271- series, (271-10K-RC for
> 10K is
> the new number for RoHS non-leaded). These cost 9 cents each, but 2
> cents each for 200. Figure it out. You can buy 50 for $4.50 or
> 200 for
> $4.00. If you do any serious DIY electronics you will be glad you
> bought 200 and then you won't say, gee I only have two 39K
> resistors left.
>
>
> -Richard Brewster
>
> http://www.pugix.com
>
> sasami@... wrote:
>
>> Often these letters refer to the type of packaging the chip comes in.
>> Sometimes it makes no difference (except maybe to the price) -
>> plastic or
>> ceramic for example. Some times it does make a difference - DIP or
>> surface
>> mount for example. The datasheet should give the details, even if the
>> catalog doesn't.
>>
>> I don't specify this because these can vary brand to brand. If I
>> say TL071,
>> what I am saying is "any brand or package of TL071 that will fit
>> on the board".
>>
>> With electros, the voltage on it needs to be equal to, or higher,
>> than the
>> one I give.
>>
>> Resistors need to be at least 1/4W (the standard for small
>> resistors),
>> though higher ratings that will physically fit are okay. As for
>> resistors,
>> 5% tollerance is assumed if no value is given, though using 2% or 1%
>> resistors is fine. In fact, the preferred resistor type is metal
>> film 1%,
>> but they do cost a little more.
>>
>> Ken
>>
>>
>>
>>> When im buying components to build my modules, does it matter
>>> which IC
>>> I buy? many of them have letters listed on the end of them that are
>>> not listed on the parts list. Say I need a tl071, do I get a
>>> tl071SM
>>> CD ACM ACP, etc.... Even simple parts like resistors and caps
>>> give me
>>> many options. I know this is some basic electronic stuff, and I
>>> should know it by now, but Im learning.
>>> (this is why I ordered my first few modules as kits from elby.. but
>>> Ive already picked out a few more that I want, and would like to get
>>> only the PCB's this time)
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> The CGS Modular Synth home page: http://www.cgs.synth.net/
>>>
>>> Yahoo! Groups Links
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>> _____________________________________________________________________
>> __
>> Ken Stone sasami@... or sasami@...
>> Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
>> Australian Miniature Horses & Ponies <http://www.blaze.net.au/
>> ~sasami/>
>>
>>
>>
>> The CGS Modular Synth home page: http://www.cgs.synth.net/
>>
>> Yahoo! Groups Links
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
>
>
> The CGS Modular Synth home page: http://www.cgs.synth.net/
>
> Yahoo! Groups Links
>
>
>
>
>
>
>

>I was under the impression that the RoHS resistors had a limited
>shelf life - is that incorrect?
>
>-Chris
>
>
>On Jan 19, 2006, at 7:01 PM, Richard Brewster wrote:
>
>> I buy resistors from Mouser. http://www.mouser.com
>>
>> I always buy the 1% metal film, the 271- series, (271-10K-RC for
>> 10K is
>> the new number for RoHS non-leaded). These cost 9 cents each, but 2
>> cents each for 200. Figure it out. You can buy 50 for $4.50 or
>> 200 for
>> $4.00. If you do any serious DIY electronics you will be glad you
>> bought 200 and then you won't say, gee I only have two 39K
>> resistors left.
>>
>>
>> -Richard Brewster
>>
>> http://www.pugix.com
>>
>> sasami@... wrote:
>>
>>> Often these letters refer to the type of packaging the chip comes in.
>>> Sometimes it makes no difference (except maybe to the price) -
>>> plastic or
>>> ceramic for example. Some times it does make a difference - DIP or
>>> surface
>>> mount for example. The datasheet should give the details, even if the
>>> catalog doesn't.
>>>
>>> I don't specify this because these can vary brand to brand. If I
>>> say TL071,
>>> what I am saying is "any brand or package of TL071 that will fit
>>> on the board".
>>>
>>> With electros, the voltage on it needs to be equal to, or higher,
>>> than the
>>> one I give.
>>>
>>> Resistors need to be at least 1/4W (the standard for small
>>> resistors),
>>> though higher ratings that will physically fit are okay. As for
>>> resistors,
>>> 5% tollerance is assumed if no value is given, though using 2% or 1%
>>> resistors is fine. In fact, the preferred resistor type is metal
>>> film 1%,
>>> but they do cost a little more.
>>>
>>> Ken
>>>
>>>
>>>
>>>> When im buying components to build my modules, does it matter
>>>> which IC
>>>> I buy? many of them have letters listed on the end of them that are
>>>> not listed on the parts list. Say I need a tl071, do I get a
>>>> tl071SM
>>>> CD ACM ACP, etc.... Even simple parts like resistors and caps
>>>> give me
>>>> many options. I know this is some basic electronic stuff, and I
>>>> should know it by now, but Im learning.
>>>> (this is why I ordered my first few modules as kits from elby.. but
>>>> Ive already picked out a few more that I want, and would like to get
>>>> only the PCB's this time)
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> The CGS Modular Synth home page: http://www.cgs.synth.net/
>>>>
>>>> Yahoo! Groups Links
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>> _____________________________________________________________________
>>> __
>>> Ken Stone sasami@... or sasami@...
>>> Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
>>> Australian Miniature Horses & Ponies <http://www.blaze.net.au/
>>> ~sasami/>
>>>
>>>
>>>
>>> The CGS Modular Synth home page: http://www.cgs.synth.net/
>>>
>>> Yahoo! Groups Links
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>>
>> The CGS Modular Synth home page: http://www.cgs.synth.net/
>>
>> Yahoo! Groups Links
>>
>>
>>
>>
>>
>>
>>
>
>
>
>The CGS Modular Synth home page: http://www.cgs.synth.net/
>
>Yahoo! Groups Links
>
>
>
>
>
>
>
>

> -----Original Message-----
> From: cgs_synth@yahoogroups.com [mailto:cgs_synth@yahoogroups.com] On
> Behalf Of c10h14no2i
>
> well the reason I ask about the letters is because I used to build
> little B.E.A.M. robots. For those, I needed the exact letter to be
> correct. for example, one time I needed some 74hc14s. My local
> electronics store said "well, we've got the 7414.. those should work
> fine" I bought a bunch of them, tried them out, and no luck. They
> did NOT work. Ordered some of the 74hc14's and they worked fine.
>
> I just dont want to run into similar issues, only w/ a tun of IC's
> that ive ordered online already, then have to wait a week before I can
> start my project again.
>
> In that particular case I think it was because the HC's could process
> the signals faster.. something like that
>

>well the reason I ask about the letters is because I used to build
>little B.E.A.M. robots. For those, I needed the exact letter to be
>correct. for example, one time I needed some 74hc14s. My local
>electronics store said "well, we've got the 7414.. those should work
>fine" I bought a bunch of them, tried them out, and no luck. They
>did NOT work. Ordered some of the 74hc14's and they worked fine.
>
>I just dont want to run into similar issues, only w/ a tun of IC's
>that ive ordered online already, then have to wait a week before I can
>start my project again.
>
>In that particular case I think it was because the HC's could process
>the signals faster.. something like that
>
>
>
>
>
>
>
>The CGS Modular Synth home page: http://www.cgs.synth.net/
>
>Yahoo! Groups Links
>
>
>
>
>
>
>
>

> -----Original Message-----
> From: cgs_synth@yahoogroups.com [mailto:cgs_synth@yahoogroups.com] On
> Behalf Of sasami@...
> Sent: Thursday, January 19, 2006 3:31 PM
> To: cgs_synth@yahoogroups.com
> Subject: Re: [cgs_synth] More newbie questions
>
> Often these letters refer to the type of packaging the chip comes in.
> Sometimes it makes no difference (except maybe to the price) - plastic or
> ceramic for example. Some times it does make a difference - DIP or surface
> mount for example. The datasheet should give the details, even if the
> catalog doesn't.
>
> I don't specify this because these can vary brand to brand. If I say
> TL071,
> what I am saying is "any brand or package of TL071 that will fit on the
> board".
>
> With electros, the voltage on it needs to be equal to, or higher, than the
> one I give.
>
> Resistors need to be at least 1/4W (the standard for small resistors),
> though higher ratings that will physically fit are okay. As for resistors,
> 5% tollerance is assumed if no value is given, though using 2% or 1%
> resistors is fine. In fact, the preferred resistor type is metal film 1%,
> but they do cost a little more.
>
> Ken
>
> >When im buying components to build my modules, does it matter which IC
> >I buy? many of them have letters listed on the end of them that are
> >not listed on the parts list. Say I need a tl071, do I get a tl071SM
> >CD ACM ACP, etc.... Even simple parts like resistors and caps give me
> >many options. I know this is some basic electronic stuff, and I
> >should know it by now, but Im learning.
> >(this is why I ordered my first few modules as kits from elby.. but
> >Ive already picked out a few more that I want, and would like to get
> >only the PCB's this time)
> >
> >