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radio testing.
Posted: Mon Nov 26, 2007 10:27 am
by sidsmith
Hi all, can anyone out there tell me how I can wire a push button old radio using a battery charger or something similar so that I can test it before fitting to mungo. ('56 splitscreen) that's been converted to neg earth.
your help would be invaluable and can you keep it simple as i'm not to clever on car electrics.
cheers sid
Posted: Mon Nov 26, 2007 11:01 am
by Orkney
easiest is crock clips off a car battery - charger might be too many volt & amps and blow it up !
Posted: Mon Nov 26, 2007 11:02 am
by alex_holden
You might be better running a couple of wires from the battery. Chargers aren't really designed to directly power sensitive electronics.
Posted: Mon Nov 26, 2007 11:39 am
by newagetraveller
A battery charger usually contains a step-down transformer and a bridge rectifier only. It's output is unsmoothed DC. Connecting it to a car radio without the addition of a smoothing capacitor usually leads to disappointment. Best to connect the radio to a car battery as suggested above.
radio testing
Posted: Mon Nov 26, 2007 3:41 pm
by sidsmith
Hi all, I take it then all I have to do is take a lead from the pos' of the battery to the radio pos' and a lead from the radio neg' to the neg' on the battery, and then add the speaker and the airial and it should play. ( hope that's right)
thanks for your input.
Posted: Mon Nov 26, 2007 4:06 pm
by alex_holden
Yes, pretty much.