UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

MrBungle · 6th Apr 2017, 9:24 am

Makes sense. I'd make sure it's explicitly not a switching power supply. Once those get inside anything RF, they are nothing but trouble.

TBH I'd probably grab an AC wall wart (the things are like swiss army knives!), add a jack to the back of the unit and stick a 7812+bridge+smoothing cap arrangement inside the unit. Or another small 6va transformer if there's enough room in it.

6th Apr 2017, 9:24 am	#39
MrBungle Dekatron Join Date: Jun 2016 Location: London, UK. Posts: 3,687	Re: Frequency counters Makes sense. I'd make sure it's explicitly not a switching power supply. Once those get inside anything RF, they are nothing but trouble. TBH I'd probably grab an AC wall wart (the things are like swiss army knives!), add a jack to the back of the unit and stick a 7812+bridge+smoothing cap arrangement inside the unit. Or another small 6va transformer if there's enough room in it.