| Need an Electronics education [message #67521] |
Tue, 15 December 2009 15:10  |
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ljdavick
Messages: 3548
Registered: March 2007
Location: Fremont, CA
Karma: -3
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I've just ordered some replacement speakers for the front cap. They came with picture instructions (totally worthless) and two capacitors (my guess). The printing on the capacitor says that they are bipolar and rated at 50V 100uF.
I have no idea what they are for, but I'm guessing that they will block the lower frequencies, since these little 3.5 inch speakers won't be used as sub-woofers!
Anyone care to hold class and let me know what to do with these, or should I toss them?
Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, Ca
Howell EFI + EBL + Electronic Dizzy
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| Re: Need an Electronics education [message #67533 is a reply to message #67521] |
Tue, 15 December 2009 16:02  |
Chr$
Messages: 2690
Registered: January 2004
Location: Scottsdale, AZ
Karma: 1
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They are there as crossovers, as you thought. To block the bass. Polarity does not matter.
Capacitors block DC, which bass is very low freq, and close to a DC signal as far as the voice coil is concerned.
A place to start your edjumacayshun...
http://www.passivecrossovers.com/
-Chr$: Perpetual SmartAss
Scottsdale, AZ
77 Ex-Kingsley 455 SOLD!
2010 Nomad 24 Ft TT 390W PV W/MPPT, EV4010 and custom cargo door.
Photosite: Chrisc GMC:"It has Begun" TT: "The Other Woman"
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| Re: [GMCnet] Need an Electronics education [message #67553 is a reply to message #67533] |
Tue, 15 December 2009 17:32 |
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ljdavick
Messages: 3548
Registered: March 2007
Location: Fremont, CA
Karma: -3
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Senior Member |
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Good edumacayshun place!
Thanks,
Larry Davick
The Mystery Machine
----- Original Message -----
From: "Chris Choffat" <cchoffataz@yahoo.com>
To: gmclist@temp.gmcnet.org
Sent: Tuesday, December 15, 2009 2:02:09 PM GMT -08:00 US/Canada Pacific
Subject: Re: [GMCnet] Need an Electronics education
They are there as crossovers, as you thought. To block the bass. Polarity does not matter.
Capacitors block DC, which bass is very low freq, and close to a DC signal as far as the voice coil is concerned.
A place to start your edjumacayshun...
http://www.passivecrossovers.com/
--
-Chr$: Perpetual SmartAss
77 Ex-Kingsley 455: The Engineer's Motorhome
Scottsdale, AZ
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Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, Ca
Howell EFI + EBL + Electronic Dizzy
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| Re: Need an Electronics education [message #67578 is a reply to message #67521] |
Tue, 15 December 2009 21:52 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Senior Member |
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If so you would wire them in series with the speaker to roll off the low freqs. Probably just provided to prevent overexcurding the small drivers with freqs below their usable range.
John Lebetski
Woodstock, IL
77 Eleganza II
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