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Electricians - your thoughts please

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Champipple
Master Marine Consultant

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USA
6855 Posts

Initially Posted - 05/30/2003 : 11:25:33

Is there an easy way (or would it be difficult) to wire my marine radio to my stereo speakers so that if there was a transmission the marine radio would cut into whatever music might be playing?

D. Wolff - "The Flying Wasp" #401 sr/sk
Chief Measurer C-25/250 National Assn.
<img src="http://www.flags.com/dreamimages/Flags/measurer.jpg" border=0>

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NuNees
Navigator

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USA
125 Posts

Response Posted - 05/30/2003 : 19:25:29

Duane,
The stereos I've seen that would do what you are asking have a circuit that internally loads the output amps of the stereo, diverts the input for the speakers to another radio (VHS). (Now, I'm going back to the CB days...so there may have been improvements). Most radios do not live long pumping into nothing, thaats why they need a load...although they probably have a load balancing restistance of some sort to accomidate an unintentionally disconnected speaker on home bound sets, it's hard to say about a mobile unit. The trick is to find some way to divert the VHS output to the stereo speakers without damaging the amps...that would require a relay that would activate and change the source when the VHS produced something, and load the amps....An easier solution is to run with the VHS on a seperate speaker, turn it up loud and the stereo medium...Good Luck.
Bill Jaworowski
PD Moonbeams
'85 C25 SR/SK #4958 Lake Carlyle IL.

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tzk53s
1st Mate

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USA
33 Posts

Response Posted - 05/31/2003 : 10:49:16

Sorry mate, there is a method by which dual inputs may be directed to a single source speaker but I believe they are beyond the average sailors expertise. Besides, who would want to take the time?( it is involved). Now, that being said, Radio shack may have a zenner diode electronic switch relay where mulitple inputs can be inputed to a single output. Check around the various stores. The price of these depend on the loads they are carrying. If someone has a high output stero to entertain the whole anchoring bay then the costs can be more than a radio with this feature built in. I was at West Marine and saw one of there mid-range priced radios with the interface already installed for outputting to stereos. OF COURSE the stereo must also be capable of taking on this feature as well. Many of the marine stereos do have this feature. The later method is the prefered. Otherwise get a good speaker for the radio to broadcast through. BTW a friend of mine does have both the radio and stereo with the ability to do what you ask and he got tired of his music being interupted by all the "chatter" so usually (95%) turns it off. <img src=icon_smile_cool.gif border=0 align=middle> Jim E

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dlucier
Master Marine Consultant

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Virgin Islands (United Kingdom)
7583 Posts

Response Posted - 05/31/2003 : 11:23:39

I would have to agree with Jim about simply adding an extension speaker into the cockpit rather than trying to interface with the stereo speakers.

SailNet carries a small VHF extension speaker(2 1/2" x 2 1/2") that can be surface or flush mounted. It sounds small enough to be installed into one of the coaming boxes which would make wiring a bit easier too. Additionally at $18.95, it is easy on the wallet.

<img src="http://www.sailnet.com/store/prodimage/160x160/ppmb21w.gif" border=0>

<b>Poly Planar Compact VHF Extension Speaker, 2.5in.</b>

Waterproof VHF extension speaker has stainless steel grill and ABS plastic housing. Surface or flush mount. Max watts: 8. Uses 1/8" mini connector. 2 1/2" x 2 1/2". Sold individually. White

<img src="http://www.catalina25-250.org/c25sm.gif" border=0>Don Lucier<img src="http://www.catalina25-250.org/c25sm.gif" border=0>
<img src="http://im1.shutterfly.com/procserv/47b2d904b3127cce9f7cd9ffdf1d0000003010" border=0>
North Star SR/FK

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