UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Which power supply for Grundig Yacht boy 300?

SteveCG · 19th Jul 2017, 1:18 pm

... by the way, just check that the PSU provides a Regulated output. That is, on no load (nothing connected to it) the voltage is still 7.5 Volts. There was a range of PSUs sold that provided an unregulated output. For these the 7.5 Volt setting, on a small load like a transistor radio, could well be 12 or more Volts. Such a voltage would damage your radio.

19th Jul 2017, 1:18 pm	#7
SteveCG Nonode Join Date: Jun 2009 Location: Herefordshire, UK. Posts: 2,495	Re: Which power supply for Grundig Yacht boy 300? ... by the way, just check that the PSU provides a Regulated output. That is, on no load (nothing connected to it) the voltage is still 7.5 Volts. There was a range of PSUs sold that provided an unregulated output. For these the 7.5 Volt setting, on a small load like a transistor radio, could well be 12 or more Volts. Such a voltage would damage your radio.