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Do resistors like caps have a + or - side? Are they directional? I'm asking because I just finished modding a Sony Playstation 1 (model 1001) and it is sounding wonderful. But, I went back through the steps to double check things and the thought accrued to me about the resistors. I measured the wires on several new ones and they are pretty much the same length; so I'm thinking orientation is a non issue. The fact that their has not been any smoke or flames helps in that regards.
Any offers of edification will appreciated.
Regards,
Marvin
Follow Ups:
Pixel photo, would you describe the mods you did to your PlayStation?
Hi hennfarm. I discovered the Sony Playstation 1 (mdl 1001) "Playstation as Cd-player" on the diyAudio forum. Read every single post (is extremely long) and then went to http://dogbreath.de/PS1/index.html for tutorials on moddying the console.
I did all the mods with the exception of moving the ps to a external case or building the external linear ps. I hope to build the linear ps when I better understand how to do it. I also installed better RCA jacks and a male IEC connector. For just a few dollars I have a little jewel which offers up what I image some would describe as hi end sound.
If you embark on this great trip I have several suggestions:
1. Get a pair of tweezers. The SMD's are so small a pair will facilitate the removal of them when desoldering.
2. Get a illuminated magnifying lamp (lucky me I still had mine from my print spotting days); you really need it.
Edits: 07/04/12
From your concerns, I think that you are asking whether or not when installing a resistor, does it's orientation matter like an electrolytic capcitor, or a diode or an LED. The answer to that question is no, it does not have a failure mode concerning it's orientation.
However, many feel that even parts that are not directional in terms of a failure mode, do _sound_ better when oriented one way versus another way.
This is going to be a much more subtle thing, as the circuits will work, and might even work OK or even well, but might work slightly better with a different orientation.
If you are happy with the sound of you Mods, then I wouldn't worry about this latter aspect of parts directionality, and just enjoy your tunes.
Jon Risch
You answered my question perfectly Jon. Thank you. Yes I am enjoying my tunes tremendously. The little Sony PS-1 is a great test bed for DIY learning. And I am thanks to all the contributions from the forum.
Regards,
Marvin
JBTW there is very little ROI in any amp using NFB in using bulk foils everywhere.
The highest return is using them to set NFB loops, and in passive filters like RIAA Eq.
Note that a post in response is preferred.
Warmest
Timothy Bailey
The Skyptical Mensurer and Audio Scrounger
And gladly would he learn and gladly teach - Chaucer. ;-)!
'Still not saluting.'
nt
... there's pretty good chance that resistor is, too.
...to confirm that fact. A resistor is not polarized, nor does it act like a diode.
Documents don't help; you'll need to experience this yourself.
Cables are directional and so why are reistors not?
Definitely agreed. From my experience,fuse,capacitors,resistor,inductor, they are all sound difference with different connection (direction). Vishey,Caddock,Shinkoh,Audio note,Kiwame,Mills, these are resistors that I used and tested for directional. Yes they do sound different.
I've assembled many electronic kits and dozens of loudspeaker crossovers and never experienced any audible effects due to orientation of resistors. Does Ohm's Law behave differently depending on directionality?I've never seen any articles claiming directional differences in resistors, other than anecdotal claims such as yours. All reasonable evidence points to this as being just another audio myth.
Edits: 06/29/12
a
...all of your resistors could be (gasp!) installed backwards!
But it looks good to me as I put the lid on.
Exacta Mundo! Not to mention all internal wiring of speakers, amplifiers, preamps, cd players, transformers, etc.
what you will.
Some of the most important discoveries have come from blue sky thinking and experimentation.
Not so, especially spiral groove types.
Try them both ways and listen.
Subjectively speaking, you can imagine whatever you wish.
Based on what, macro properties by way of C,R,L?
How does one ID a spiral groove resistor? Is there a visible spiral groove on the exterior? The ones I'm using (per the tutorial for the mentioned mod) are Vishay metal film, through hole, 1/2watt, 22Kohms, 5% from Mouser.
Most cheaper barrel type resistors have a surface film cut to the right resistance theu grooving.
Vishay makes many types of resistors under various brands that it acquired. The best way to see if there is directionality is to solder one in and then reverse direction as the last resistor in the output chain and see if you can hear a difference.
I did this to various resistors in a passive attentuator and heard differences.
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