Ferguson Studio 6 - UK Vintage Radio Repair and Restoration Discussion Forum

LukeG83 · 19th Sep 2017, 6:52 pm

Hi, Just obtained a cosmetically excellent Ferguson Studio 6.

Unfortunately only sound from right hand speaker and only the odd crackle from the left. Same on Record player and Radio settings. Any suggestions for the fault?

Much appreciated. Luke

Nuvistor · 19th Sep 2017, 8:23 pm

Circuit details available at http://www.radiomuseum.org/r/thorn_f...ntre_3463.html

Check the speakers if not already tried, then fault find in the audio amplifier stages, the power supply is common to both channels so unless there is a break in the power to the faulty stage the PSU will be OK.

Before trying the speakers make sure there are no shorts on the speaker plugs or it could damage the good channel.If you have headphones you could try those instead.

wd40addict · 20th Sep 2017, 11:00 am

My parents used to have one of these. I eventually traced intermittent disappearance of the right channel to dry joints on the power transistors.

19th Sep 2017, 6:52 pm	#1
LukeG83 Hexode Join Date: Jul 2008 Location: Garstang, Lancashire, UK. Posts: 283	Ferguson Studio 6 Hi, Just obtained a cosmetically excellent Ferguson Studio 6. Unfortunately only sound from right hand speaker and only the odd crackle from the left. Same on Record player and Radio settings. Any suggestions for the fault? Much appreciated. Luke

19th Sep 2017, 8:23 pm	#2
Nuvistor Dekatron Join Date: Aug 2013 Location: Wigan, Greater Manchester, UK. Posts: 9,433	Re: Ferguson Studio 6 Circuit details available at http://www.radiomuseum.org/r/thorn_f...ntre_3463.html Check the speakers if not already tried, then fault find in the audio amplifier stages, the power supply is common to both channels so unless there is a break in the power to the faulty stage the PSU will be OK. Before trying the speakers make sure there are no shorts on the speaker plugs or it could damage the good channel.If you have headphones you could try those instead. __________________ Frank

20th Sep 2017, 11:00 am	#3
wd40addict Octode Join Date: May 2009 Location: Stevenage, Herts. UK. Posts: 1,518	Re: Ferguson Studio 6 My parents used to have one of these. I eventually traced intermittent disappearance of the right channel to dry joints on the power transistors.