UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - DIY18V DC power supply for Hacker Sovereign II

dazzlevision · 24th Oct 2019, 9:00 am

The Philips unit is an N6502, originally with three dc output voltages: 6, 7.5 and 9V @ 250mA max. The mains lead into it is pluggable and the "hard wired" dc output lead is terminated in a "Roka" plug, with an adaptor to convert it into a 5 pin (270 degree?)DIN plug, that was fitted on many Philips portable battery only cassette recorders.

It uses a typical series regulator circuit, with a zener diode voltage reference. Transistors AC128 and AD162.

They are well made and seem to be widely available on auction sites, etc.

24th Oct 2019, 9:00 am	#5
dazzlevision Dekatron Join Date: Sep 2003 Location: Near Swindon, North Wiltshire, UK. Posts: 3,611	Re: DIY18V DC power supply for Hacker Sovereign II The Philips unit is an N6502, originally with three dc output voltages: 6, 7.5 and 9V @ 250mA max. The mains lead into it is pluggable and the "hard wired" dc output lead is terminated in a "Roka" plug, with an adaptor to convert it into a 5 pin (270 degree?)DIN plug, that was fitted on many Philips portable battery only cassette recorders. It uses a typical series regulator circuit, with a zener diode voltage reference. Transistors AC128 and AD162. They are well made and seem to be widely available on auction sites, etc.