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trio

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    Trio AF-270 AM/FM Tuner

    I have a post for this under Tuners which gave some good feedback though only general in nature. I am chasing a circuit diagram from this tuner. It is a 10 valve (tube) unit dating from approx 1959. Mains wiring to the transformer suggests that this was constructed for the U.S. though I’m told...
  2. S

    Trio AF-270 AM/FM Tuner

    Hope I've got this right. Not only first thread on Audiokarma, first thread ever. I am chasing a circuit diagram for this tuner. I've done the basics and it works, just. I don't have adequate knowledge to take it too much further without the circuit. All information gratefully received
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