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Joined: Aug 2020
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Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Aug 2020
Posts: 55 Likes: 2 |
Where does a 1936 Radio the Power source hooks up to?
Is it the ignition key that turns on the power or in the back of the Ammeter fuse side?
Thank you in advance,
Marco SR
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Joined: Dec 2007
Posts: 4,022 Likes: 99
ChatMaster - 4,000
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ChatMaster - 4,000
Joined: Dec 2007
Posts: 4,022 Likes: 99 |
I suggest that you should not wire it through the ignition switch. You can connect the radio power lead to either the load side of the ammeter or the hot side of the ignition switch, whichever is more convenient. I expect that the hot side of the ignition switch is easier to access.
The concern is that the contact points in the ignition switch cannot handle very much current. It is easy to overload them. Over the years there have been numerous posts about adding a switched relay to power accessories on these older Chevy’s.
On my ‘37 the only items that are powered through the ignition switch are the ignition, the fuel gauge, and the turn signals. I can get away with that because the turns signals are a short term and intermittent load. The blower motors for the heater and defroster are wired to the hot side if the ignition switch. I have to remember to turn them off when I stop the engine. I expect those motors would be too much load for the ignition switch contacts. I have never installed the original ‘37 radio I have.
Rusty
VCCA #44680
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1 member likes this:
1936Chevy2Door |
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Joined: May 2002
Posts: 6,149 Likes: 41
ChatMaster - 6,000
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ChatMaster - 6,000
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If you put a relay in to switch the high current drawing device and the relay control off the ignition turning the key off will turn the accessories off as well. I put a ignition controlled relay in a lot of cars that dont turn the lights off with the key. Tony
1938 1/2 ton Hope to drive it before I retire
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Joined: Aug 2020
Posts: 55 Likes: 2
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Aug 2020
Posts: 55 Likes: 2 |
I'm running 6V system do you know what or any suggestions on which relay switch I should use?
I'm not that sharp when it comes to electronics, I know the positive side and negative side
Marco SR
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Joined: Dec 2007
Posts: 4,022 Likes: 99
ChatMaster - 4,000
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ChatMaster - 4,000
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Do a Google search or search Amazon for “6 volt relay”. You want a 4 pin Normally Open relay or you can get a 5 pin Single Pole Double Throw relay. You will also need to buy a socket for the relay. That socket has the wire leads for connections.
After you have the parts let us know and we can help you set up the correct wiring. I do recommend that you spend a few bucks and get a basic volt-ohm meter.
Rusty
VCCA #44680
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Joined: Aug 2020
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Shade Tree Mechanic
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Shade Tree Mechanic
Joined: Aug 2020
Posts: 55 Likes: 2 |
Thank You, will do my research tomorrow. and get a volt-ohm meter,
Marco SR
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