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11-07-2019 #11
Last Activity: 22-03-2024
Thanks, guys. I have just wired the AC to DC transformer bits together for the first time and connected it to the mains. I have not yet used a 'delay on' timer relay and just wired an NTC thermistor on the live between mains in and the primary winding. On first switch on nothing dramatic happened and I am getting 53 volts at the DC output which is close to what I wanted. I was surprised that the thermistor did not get hot like I thought they were supposed to. Could this be because there is no load on the DC output? Similarly the bridge rectifier does not seem hot or even warm. Is this normal? The thermistor is a SL15 2R507 that Airlink transformers recommend for toroidals up to 1kVA
Regards ...ChrisLast edited by chillybo; 11-07-2019 at 05:00 PM.
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