Bush SRG91 radiogram - UK Vintage Radio Repair and Restoration Discussion Forum

Ian Scott · 14th Nov 2017, 8:30 pm

Hi, I'm new here. We have just bought a Bush SRG91 radiogram, as we are big listeners of vinyl records. All seems well with the purchase, but the right hand set of speakers are not working. I've had a look and there are no obvious loose wires.
Do any of the experts know where I should begin to look?

AC/HL · 14th Nov 2017, 11:56 pm

Hello and Welcome,
When you say the right hand speakers are not working, is this just on records, or on the radio too?

Ian Scott · 15th Nov 2017, 9:26 am

Speakers don't work with radio or records. I've checked all the wires to and from the speakers and they are all securely connected.
Also the radio doesnt stay tuned. When you tune it its ok then walk away it starts to ceackle a d loose its tune.

Station X · 15th Nov 2017, 9:29 am

Swop the speakers over to localise the fault to the speakers or the amplifier.

There are switches S5 and S6 in series with the speakers, although I don't know what form they take. Try operating these several times and giving the contacts a squirt of Servisol if they're accessible

Edward Huggins · 15th Nov 2017, 11:24 am

Speakers rarely fail. It could just be poor contacts, but it could also be a fault in the amplfiier on that channel. What exerience do you have of fault finding on this kind of vintage valved equipment?

Also, is the fading on the radio confined to just the VHF waveband or all?

14th Nov 2017, 8:30 pm	#1
Ian Scott Retired Dormant Member Join Date: Nov 2017 Location: Eyemouth, Berwickshire, UK. Posts: 9	Bush SRG91 radiogram Hi, I'm new here. We have just bought a Bush SRG91 radiogram, as we are big listeners of vinyl records. All seems well with the purchase, but the right hand set of speakers are not working. I've had a look and there are no obvious loose wires. Do any of the experts know where I should begin to look?

14th Nov 2017, 11:56 pm	#2
AC/HL Dekatron Join Date: Nov 2003 Location: Heckmondwike, West Yorkshire, UK. Posts: 9,642	Re: Bush SRG91 radiogram Hello and Welcome, When you say the right hand speakers are not working, is this just on records, or on the radio too?

15th Nov 2017, 9:26 am	#3
Ian Scott Retired Dormant Member Join Date: Nov 2017 Location: Eyemouth, Berwickshire, UK. Posts: 9	Re: Bush SRG91 radiogram Speakers don't work with radio or records. I've checked all the wires to and from the speakers and they are all securely connected. Also the radio doesnt stay tuned. When you tune it its ok then walk away it starts to ceackle a d loose its tune. Last edited by Ian Scott; 15th Nov 2017 at 9:29 am. Reason: Adding extra

15th Nov 2017, 9:29 am	#4
Station X Moderator Join Date: Jan 2003 Location: Ipswich, Suffolk, IP4, UK. Posts: 21,288	Re: Bush SRG91 radiogram Swop the speakers over to localise the fault to the speakers or the amplifier. There are switches S5 and S6 in series with the speakers, although I don't know what form they take. Try operating these several times and giving the contacts a squirt of Servisol if they're accessible Attached Thumbnails __________________ Graham. Forum Moderator Reach for your meter before you reach for your soldering iron.

15th Nov 2017, 11:24 am	#5
Edward Huggins Dekatron Join Date: Sep 2015 Location: Southwold, Suffolk, UK. Posts: 8,327	Re: Bush SRG91 radiogram Speakers rarely fail. It could just be poor contacts, but it could also be a fault in the amplfiier on that channel. What exerience do you have of fault finding on this kind of vintage valved equipment? Also, is the fading on the radio confined to just the VHF waveband or all? __________________ Edward.