[sdiy] bypass caps for TTL

[Ray Wilson]

I have a whole case of 74LS chips and I don't plan on doing anything with 
them too soon (or ever at all, ever, ever after).

Any interest?

Ray

----- Original Message ----- 
From: "phillip m gallo" <philgallo at attglobal.net>
To: "James Patchell" <patchell at cox.net>; <rkmoore at memphis.edu>; 
<synth-diy at dropmix.xs4all.nl>
Sent: Thursday, March 10, 2005 6:14 PM
Subject: RE: [sdiy] bypass caps for TTL


> Jim,
>
> Don't toss your 7406's and 7407's they are still quite handy.
>
> regards,
> p
>
>
> -----Original Message-----
> From: owner-synth-diy at dropmix.xs4all.nl
> [mailto:owner-synth-diy at dropmix.xs4all.nl]On Behalf Of James Patchell
> Sent: Thursday, March 10, 2005 5:04 PM
> To: rkmoore at memphis.edu; synth-diy at dropmix.xs4all.nl
> Subject: Re: [sdiy] bypass caps for TTL
>
>
> Ceramic Multi layer, .1uF is what I always used...TTL...talk about
> retro.  I am packing up all of my old TTL chips and getting ready to
> "dispose" of them.  I pretty much consider them to be fairly useless these
> days.
>
>         Trouble is, in my collection, I have some rather unique ones.  The
> most unique?....Well that would be some SN74S482s which are a 4 bit slice
> micro code sequencer chip.  I also have a few SN74ALS384 and SN74ALS385s
> which are a serial multiplier and a serial adder/subtractor chips
> respectfully.  Still trying to decide what to do with the more rare
> chips.  I also have a whole bunch of 74F169 four bit up/down counters that
> I was at one time thinking of making into a top octave generator...but 
> that
> kind of job is now left to FPGA's...
>
>         -Jim
>
> At 09:14 AM 3/10/2005 -0600, rkmoore at memphis.edu wrote:
>>Hi everyone,
>>
>>I'm working on a project for school that uses lots of TTL IC's.  I
>>remember hearing that I should probably use bypass capacitors between
>>the +Vcc and ground on each IC.  What type of caps should I use and
>>what value?  Any suggestions?
>>
>>Thanks,
>>
>>Richard Moore
>
>         -Jim
> ***************************************************************
> http://www.oldcrows.net/~patchell
>
> ***************************************************************
>
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