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thanks for all the tips!
Ive powered the box with 12v and 5v from a computer PSU and it works perfectly, so i just need to sort out some fuses and the suggested regulators for it to work off the cars 12v.
Ive had a look at the pcb and its a bit more complicated than i thought, theres 2 parts...
Apologies, yes the tranformer has 2 secondary coils which i have measured with a dvm at 12 and 5 volts dc after a big diode on the 5v and a small diode on the 12v. Ill have a go at tracing the tracks when i get home tonight.
thanks
Hi All
1st post so apologies that it is asking for advice!
I want to run a low power(>5w), mains (240vAC) powered tv tuner box off a car battery.
Rather than running a car power inverter up to 240VAC then back down it seems to make more sense to run it all off DC power.
I've opened...
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