UK Vintage Radio Repair and Restoration Powered By Google Custom Search Vintage Radio and TV Service Data

Go Back   UK Vintage Radio Repair and Restoration Discussion Forum > Specific Vintage Equipment > Vintage Tape (Audio), Cassette, Wire and Magnetic Disc Recorders and Players

Notices

Vintage Tape (Audio), Cassette, Wire and Magnetic Disc Recorders and Players Open-reel tape recorders, cassette recorders, 8-track players etc.

Reply
 
Thread Tools
Old 20th Sep 2021, 1:40 pm   #1
stevie23
Tetrode
 
Join Date: Apr 2021
Location: London, UK.
Posts: 86
Default Collaro studio deck - noisy mechanism

Hi again. I've got a Magnavox Tm800 on me bench. It has a Collaro Studio deck (piano keys) and upon playing at any speed, the flywheel/idler combination makes a really bad racket. Anyone had this issue? Should the idler wheel have a rubber tyre? Because there is no tyre on this one... Its just metal on metal.
stevie23 is offline   Reply With Quote
Old 20th Sep 2021, 2:11 pm   #2
barrymagrec
Octode
 
Join Date: Dec 2017
Location: Morden, Surrey, UK.
Posts: 1,212
Default Re: Collaro studio deck - noisy mechanism

And there`s your problem diagnosed. Metal on metal idler systems would never work, the idler should have a rubber tyre moulded on. It may be pretty hard by now though, I`ve just looked at mine and the rubber is like a rock.
barrymagrec is online now   Reply With Quote
Old 21st Sep 2021, 8:01 am   #3
stevie23
Tetrode
 
Join Date: Apr 2021
Location: London, UK.
Posts: 86
Default Re: Collaro studio deck - noisy mechanism

Quote:
Metal on metal idler systems would never work, the idler should have a rubber tyre moulded on.
Thanks Barry. Well now I know. There must have been at tyre at one time then. There isnt one there now though. It must have been taken off or its just disintegrated. What can I do for a replacement? Source a complete idler from somewhere?
stevie23 is offline   Reply With Quote
Old 21st Sep 2021, 8:32 am   #4
barrymagrec
Octode
 
Join Date: Dec 2017
Location: Morden, Surrey, UK.
Posts: 1,212
Default Re: Collaro studio deck - noisy mechanism

I have no idea about spares specifically for the Studio but Collaro made a great many more turntables than tapedecks, it`s possible that an idler for a turntable would be the same.
barrymagrec is online now   Reply With Quote
Old 21st Sep 2021, 10:08 am   #5
DMcMahon
Dekatron
 
DMcMahon's Avatar
 
Join Date: Apr 2019
Location: Worthing, West Sussex, UK.
Posts: 4,056
Default Re: Collaro studio deck - noisy mechanism

Is there a PT number stamped into the idler face ?

David
DMcMahon is offline   Reply With Quote
Old 21st Sep 2021, 7:39 pm   #6
Half a Mullard
Hexode
 
Join Date: Mar 2012
Location: East Yorkshire, UK.
Posts: 320
Default Re: Collaro studio deck - noisy mechanism

I believe this is a Collaro studio deck but apologies if I've got it wrong. It's a bit grubby from being in the loft. The idler is fairly hard but I've not tried it running. The only numbers I can see stamped on it look to be a 1 and 02.

I agree about the record decks, I'm sure I had an old Collaro deck and from memory the idler looked the same. That could be a good way to go as they may be more common.
Attached Thumbnails
Click image for larger version

Name:	P1110141.jpg
Views:	71
Size:	68.9 KB
ID:	241876   Click image for larger version

Name:	P1110144.jpg
Views:	73
Size:	65.6 KB
ID:	241877   Click image for larger version

Name:	P1110145.jpg
Views:	67
Size:	52.7 KB
ID:	241878  
__________________
Howard
Half a Mullard is offline   Reply With Quote
Old 22nd Sep 2021, 6:57 am   #7
stevie23
Tetrode
 
Join Date: Apr 2021
Location: London, UK.
Posts: 86
Default Re: Collaro studio deck - noisy mechanism

Howard, yours looks like a studio deck but has rubber idlers. The one I am working on has a metal idler (this is the wheel that connects between motor and flywheel/capstan.)

Barry, I'm not sure about record decks having similar idlers but i wouldn't have thought so...

David, I'm not on site again till next Monday now so I'll get some pictures then.
Cheers guys.
stevie23 is offline   Reply With Quote
Old 22nd Sep 2021, 11:19 am   #8
DMcMahon
Dekatron
 
DMcMahon's Avatar
 
Join Date: Apr 2019
Location: Worthing, West Sussex, UK.
Posts: 4,056
Default Re: Collaro studio deck - noisy mechanism

Difficult to tell from the photos but sometimes on rubber tyred idlers the rubber covering can extend over the complete metal base idler wheel (i.e. not always a rubber tyre just around the outer circumference of the metal idler wheel) so then from quick glance can look like an all rubber idler.

David
DMcMahon is offline   Reply With Quote
Old 22nd Sep 2021, 1:10 pm   #9
Edward Huggins
Dekatron
 
Join Date: Sep 2015
Location: Southwold, Suffolk, UK.
Posts: 6,981
Default Re: Collaro studio deck - noisy mechanism

The quite large and heavy flywheel on these decks do have a tendency to give a "ringing" sound when running.
__________________
Edward.
Edward Huggins is online now   Reply With Quote
Old 23rd Sep 2021, 7:56 am   #10
stevie23
Tetrode
 
Join Date: Apr 2021
Location: London, UK.
Posts: 86
Default Re: Collaro studio deck - noisy mechanism

Quote:
Originally Posted by Edward Huggins View Post
The quite large and heavy flywheel on these decks do have a tendency to give a "ringing" sound when running.
Yeah, but not "KRRGRSHING!!KLGLKLGKLGKLGKLG........" lol. Its quite loud and even though sound of the tape recorder proper will probably be dubbed on the film crews don't like these things apparently.
stevie23 is offline   Reply With Quote
Old 23rd Sep 2021, 8:07 am   #11
Ted Kendall
Nonode
 
Join Date: Jul 2008
Location: Kington, Herefordshire, UK.
Posts: 2,773
Default Re: Collaro studio deck - noisy mechanism

If it's just being used as a prop, then a suitably wide elastic band round the idler rim will make the thng run close enough to the right speed without deafening the little darlings...
Ted Kendall is offline   Reply With Quote
Old 23rd Sep 2021, 11:36 am   #12
stevie23
Tetrode
 
Join Date: Apr 2021
Location: London, UK.
Posts: 86
Default Re: Collaro studio deck - noisy mechanism

Quote:
a suitably wide elastic band round the idler rim
Yes I was thinking that too. Its a good idea. I'll try it when I'm in next week.
stevie23 is offline   Reply With Quote
Old 24th Sep 2021, 7:51 pm   #13
Analogue man
Triode
 
Join Date: Dec 2020
Location: Raunds, Northamptonshire, UK.
Posts: 38
Default Re: Collaro studio deck - noisy mechanism

Certainly the idler on the earlier Collaro tape decks was the same as the turntables and so this may well be too.
Analogue man is offline   Reply With Quote
Reply

Thread Tools



All times are GMT. The time now is 8:24 am.


All information and advice on this forum is subject to the WARNING AND DISCLAIMER located at https://www.vintage-radio.net/rules.html.
Failure to heed this warning may result in death or serious injury to yourself and/or others.


Powered by vBulletin®
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
Copyright ©2002 - 2021, Paul Stenning.