Ferguson 3218 - UK Vintage Radio Repair and Restoration Discussion Forum

izoomer · 10th Apr 2021, 11:56 am

I bought a working Ferguson reel to reel tape recorder model 8312. But the right hand spindle wasn’t running freely. I removed the clip from the bottom of the shaft and cleaned the spindle and put it back together. I turned it back on and it is now turning around well, but there is no sound, in fact there is nothing. None of the valves heaters work, the motor works fine though. I cannot find a circuit diagram for this model. All that was done was to turn the deck upside down to fix the sticky spindle, then turned the right way up. Not sure where to look,
Izoomer

ms660 · 10th Apr 2021, 12:13 pm

Quote:

Originally Posted by izoomer

I bought a working Ferguson reel to reel tape recorder model 8312.

3218?

Lawrence.

izoomer · 10th Apr 2021, 1:59 pm

typo, yes a 3218,

G6ONEDave · 10th Apr 2021, 2:01 pm

Am confused by the model number 8312, your attached picture file name shows it as being 3812. The 3812 relates to a BRC 1579 tv set in my data reference. No data showing for an 8312 and 3182 is a radio. Please post a photo showing the model number plate, thanks.

Dave

Cobaltblue · 10th Apr 2021, 2:03 pm

Title changed good spot Lawrence.

I am wondering if either connections fell off or the boards were damaged when it was upside down?

The lack of filament supply suggests there is a disconnect or a short somewhere.

Cheers

Mike T

G6ONEDave · 10th Apr 2021, 2:07 pm

The 3218 service data is avalable from the download link at the top of the page. My last post crossed with the update model number.

Dave

DMcMahon · 10th Apr 2021, 3:55 pm

You will see when you look at the data sheet schematic, that if the capstan motor is running Ok then this should mean that 240V mains should be getting to the primary of the mains transformer T2.

The 3 paralled valve filament heaters are fed from the filament heater secondary winding of the mains transformer, nothing is shown fused, so with a working motor it as suggested already, would appear to indicate bad connection, maybe from the mains voltage selection SK5 to the primary winding or bad connection from secondary winding to heaters or a dead/shorted transformer. Should be fairly easy to prove one way or the other but be very careful, mains voltage can bite !

David

10th Apr 2021, 11:56 am	#1
izoomer Diode Join Date: Sep 2018 Location: Cardiff, South Gamorgan, Wales, UK. Posts: 6	Ferguson 3218 I bought a working Ferguson reel to reel tape recorder model 8312. But the right hand spindle wasn’t running freely. I removed the clip from the bottom of the shaft and cleaned the spindle and put it back together. I turned it back on and it is now turning around well, but there is no sound, in fact there is nothing. None of the valves heaters work, the motor works fine though. I cannot find a circuit diagram for this model. All that was done was to turn the deck upside down to fix the sticky spindle, then turned the right way up. Not sure where to look, Izoomer Attached Thumbnails Last edited by Cobaltblue; 10th Apr 2021 at 2:01 pm. Reason: re titled with correct model number

10th Apr 2021, 1:59 pm	#3
izoomer Diode Join Date: Sep 2018 Location: Cardiff, South Gamorgan, Wales, UK. Posts: 6	Re: Ferguson 8312 typo, yes a 3218,

10th Apr 2021, 2:01 pm	#4
G6ONEDave Octode Join Date: Dec 2019 Location: Owston Ferry, North Lincolnshire, UK. Posts: 1,698	Re: Ferguson 3218 Am confused by the model number 8312, your attached picture file name shows it as being 3812. The 3812 relates to a BRC 1579 tv set in my data reference. No data showing for an 8312 and 3182 is a radio. Please post a photo showing the model number plate, thanks. Dave __________________ Quote "All is hyperthetical, until it isn't!" (President Laura Roslin, Battlestar Galactica)

10th Apr 2021, 2:03 pm	#5
Cobaltblue Moderator Join Date: Dec 2010 Location: Exeter, Devon and Poole, Dorset UK. Posts: 6,857	Re: Ferguson 3218 Title changed good spot Lawrence. I am wondering if either connections fell off or the boards were damaged when it was upside down? The lack of filament supply suggests there is a disconnect or a short somewhere. Cheers Mike T __________________ Invisible airwaves crackle with life or at least they used to Mike T BVWS member. www.cossor.co.uk

10th Apr 2021, 2:07 pm	#6
G6ONEDave Octode Join Date: Dec 2019 Location: Owston Ferry, North Lincolnshire, UK. Posts: 1,698	Re: Ferguson 3218 The 3218 service data is avalable from the download link at the top of the page. My last post crossed with the update model number. Dave __________________ Quote "All is hyperthetical, until it isn't!" (President Laura Roslin, Battlestar Galactica)

10th Apr 2021, 3:55 pm	#7
DMcMahon Dekatron Join Date: Apr 2019 Location: Worthing, West Sussex, UK. Posts: 6,600	Re: Ferguson 3218 You will see when you look at the data sheet schematic, that if the capstan motor is running Ok then this should mean that 240V mains should be getting to the primary of the mains transformer T2. The 3 paralled valve filament heaters are fed from the filament heater secondary winding of the mains transformer, nothing is shown fused, so with a working motor it as suggested already, would appear to indicate bad connection, maybe from the mains voltage selection SK5 to the primary winding or bad connection from secondary winding to heaters or a dead/shorted transformer. Should be fairly easy to prove one way or the other but be very careful, mains voltage can bite ! David