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tempus fugit
Guest
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 Posted:
Tue Dec 06, 2005 1:36 am Post subject:
Re: noisy relays |
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Well, actually, maybe not. I did some testing again today, and there is a
noticeable improvement. Sometimes the switching was dead quiet, and overall
there were fewer pops, but some switching was pretty loud still.
Perhaps the contacts are an issue, but I think this was definitely
contributing to the overall noise.
Thanks again for your help.
| Quote: | | That pretty well rules out my guess. |
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neon
Joined: 25 Feb 2006
Posts: 580
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Thu Mar 16, 2006 3:53 pm Post subject:
Re: noisy relays |
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Hey all;IT HAS TO BE TIMING of the relay first of all they are slow and during switching there is probably an open circuit to the amp that will make it pop or saturate the amp maybe i cannot tell you that since i have no shcematic to look at. for a guitar amplifier it is better to use of all things tubes because of the dynamics of tube amplifiers. I have designed some for musicians and i don't know but they claim the sound is better. to get beck to your problem i would switch to reed and better yet solid stateswitching
| tempus fugit wrote: | I have a switching unit for my guitar effects that uses relays to switch the
signal in and out. When I first built this thing a couple years ago, the
switching was fairly quiet - the little pops were almost inaudible. Lately,
though, the pops have been getting louder and louder. Are my relay contacts
getting worn already? Is there some remedy for this problem (other than
replacing the relays)?
I had also thought of replacing the relay with some sort of solid state
switch. My only concern is that in bypass mode, the signal passes through 6
relays in total. With the higher on resistance of a SS switch, I'm worried
that the signal will suffer some serious degradation. Any suggestions here?
Are there any super low on resistance SS switches around?
Thanks |
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neon
Joined: 25 Feb 2006
Posts: 580
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Sun Apr 02, 2006 9:28 am Post subject:
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pops are caused by open relays contacts and oxidasion will cause that especialy if silver contacts are inplemented. i don't think you have burn up contacts just dirty. contacts. unless you change the scheme of things it will remain your trouble forever.
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