Bench testing the factory AM radio - The 1947 - Present Chevrolet & GMC Truck Message Board Network

northerngmc · 04-19-2007, 11:23 PM

I pulled a factory AM radio out of a 70 GMC parts truck and I would like to install it in my 69 GMC.

Before I install it I would like to test it to see if it works.

Can I simply run a 12 volt supply to the radio and ground the case?

Does the speaker need to be grounded as well?

AceX · 04-20-2007, 07:55 AM

In short, yes. You need to run 12v power and matching ground to the radio.

The speaker does not have to be grounded unless otherwise specified by the manufacturer.

northerngmc · 04-20-2007, 10:00 AM

Hummmm, makes me curious of the long answer!

Thanks

northerngmc · 04-20-2007, 11:51 PM

Thanks for the help, it works!

04-19-2007, 11:23 PM	#1
northerngmc Registered User Join Date: Jan 2004 Location: Whitehorse YK Canada Posts: 2,651	Bench testing the factory AM radio I pulled a factory AM radio out of a 70 GMC parts truck and I would like to install it in my 69 GMC. Before I install it I would like to test it to see if it works. Can I simply run a 12 volt supply to the radio and ground the case? Does the speaker need to be grounded as well? __________________ Blaine 59 GMC 9314 a.k.a. Whoopee 68 C20 50th Anniversary a.k.a. The Rat http://www.flickr.com/photos/northerngmc/ http://www.members.tripod.com/P-wee/index_032.htm 1.61803 is one H of a lot better than 3.14159, no really it is!

04-20-2007, 07:55 AM	#2
AceX >130dB Moderator Join Date: Aug 2006 Location: Sacramento, CA Posts: 2,130	Re: Bench testing the factory AM radio In short, yes. You need to run 12v power and matching ground to the radio. The speaker does not have to be grounded unless otherwise specified by the manufacturer. __________________ Living Life @ 130dB LED Tail Light Conversion; How-to Friend. Father. Brother. RIP El Jay ------------------------------------------------------------------------------------------------------------------------- CLICK HERE and for less than $0.07 a day, you too can help support and build a better forum.

04-20-2007, 10:00 AM	#3
northerngmc Registered User Join Date: Jan 2004 Location: Whitehorse YK Canada Posts: 2,651	Re: Bench testing the factory AM radio Hummmm, makes me curious of the long answer! Thanks __________________ Blaine 59 GMC 9314 a.k.a. Whoopee 68 C20 50th Anniversary a.k.a. The Rat http://www.flickr.com/photos/northerngmc/ http://www.members.tripod.com/P-wee/index_032.htm 1.61803 is one H of a lot better than 3.14159, no really it is!

04-20-2007, 11:51 PM	#4
northerngmc Registered User Join Date: Jan 2004 Location: Whitehorse YK Canada Posts: 2,651	Re: Bench testing the factory AM radio Thanks for the help, it works! __________________ Blaine 59 GMC 9314 a.k.a. Whoopee 68 C20 50th Anniversary a.k.a. The Rat http://www.flickr.com/photos/northerngmc/ http://www.members.tripod.com/P-wee/index_032.htm 1.61803 is one H of a lot better than 3.14159, no really it is!

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