Radford SPA-60 schematic wanted

audiomatic · 22nd October 2007, 03:17 PM

Hello;

does anyone happen to have a schematic of this vintage radford transistor amp? This model has a linear power supply similar to e.g. Quad 303. Something is wrong with the regulator circuit. Seems that some folk messed up the unit before by trying to repair it, so the original schematic would be helpful.

thanks

audiomatic

gaetan8888 · 23rd October 2007, 07:18 AM

Hello

You can try one of those link;

http://www.radfordaudio.co.uk/forum/

http://tech.groups.yahoo.com/group/radford/

Gaetan

audiomatic · 22nd November 2007, 08:23 AM

Hello;

just want to bring this thread up again.
I tried both suggestions of the post above, but unfortunately I haven`t been successfull either.

Anyone else having a good idea?

thanks, audiomatic

arensattic · 5th April 2009, 06:50 PM

Dear Audiomatic,

I have a pdf version of the Radford SPA60 schematic for you, but the size of the file is about 1 Megabytes. Therefore I cannot attach it to this message in the DIY audio forum. However, if you drop me a line I can send you the file by e-mail.

Best regards,

Aren van Waarde
(aka arensattic)

Nafty · 17th October 2010, 06:01 PM

Dear Arensattic
I have one ST60 to rebuild.
I´m running out of schematics.
Could you be very kindly and file me one simple of the schematics?
Thank you so very much.
Kind regards
Nafty

22nd October 2007, 03:17 PM	#1
audiomatic diyAudio Member Join Date: Mar 2004 Location: RLP	Radford SPA-60 schematic wanted Hello; does anyone happen to have a schematic of this vintage radford transistor amp? This model has a linear power supply similar to e.g. Quad 303. Something is wrong with the regulator circuit. Seems that some folk messed up the unit before by trying to repair it, so the original schematic would be helpful. thanks audiomatic

5th April 2009, 06:50 PM	#4
arensattic diyAudio Member Join Date: Mar 2006 Location: Groningen	Schematic of Radford SPA60 amplifier Dear Audiomatic, I have a pdf version of the Radford SPA60 schematic for you, but the size of the file is about 1 Megabytes. Therefore I cannot attach it to this message in the DIY audio forum. However, if you drop me a line I can send you the file by e-mail. Best regards, Aren van Waarde (aka arensattic) __________________ Real HiFi runs hot and has only one speaker unit per audio channel.

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23rd October 2007, 07:18 AM	#2
gaetan8888 diyAudio Member Join Date: Apr 2007	Hello You can try one of those link; http://www.radfordaudio.co.uk/forum/ http://tech.groups.yahoo.com/group/radford/ Gaetan

22nd November 2007, 08:23 AM	#3
audiomatic diyAudio Member Join Date: Mar 2004 Location: RLP	Hello; just want to bring this thread up again. I tried both suggestions of the post above, but unfortunately I haven`t been successfull either. Anyone else having a good idea? thanks, audiomatic

17th October 2010, 06:01 PM	#5
Nafty diyAudio Member Join Date: Jul 2005 Location: Madrid, Spain	Dear Arensattic I have one ST60 to rebuild. I´m running out of schematics. Could you be very kindly and file me one simple of the schematics? Thank you so very much. Kind regards Nafty

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