BSR deck running too fast. - UK Vintage Radio Repair and Restoration Discussion Forum

Davisss · 3rd Sep 2016, 9:07 pm

Hello
I have this Fidelity. It runs slightly fast and I have no idea how to adjust this. Hope someone can help. Thank you.

Edward Huggins · 3rd Sep 2016, 9:26 pm

The speeds on these can't be adjusted, but a fault on the drive to the turntable can. Does it run fast on all speeds? It is "fast" as such, or is it a "varying speed" with changes in pitch?

Edward

Nuvistor · 3rd Sep 2016, 9:41 pm

Check for build up of dirt on the stepped pulley. The build up increase the diameter of the pulley and increases the speed slightly.

Frank

Davisss · 3rd Sep 2016, 10:13 pm

Thank you both.
It is more noticeable at 45.
It is not varying, just slightly fast.

There shouldn't really be dirt as it had a service (clean up, lubrication etc before I got it) .
Dave

Nuvistor · 3rd Sep 2016, 11:50 pm

The rubber from the idler wheel can build up on tbe stepped pulley, easy to check if it is that.
Frank

Clydeuk · 3rd Sep 2016, 11:53 pm

Have a look where the idler sits on the stepped pulley, it should be sitting cleanly on each step. I think there is a means of adjusting this up and down.

I seem to remember having a player with this deck that did seem slightly faster than an older BSR deck I had, but in my case I thought the older deck was slightly slow. These aren't precision instruments and there may be variations, but it shouldn't be noticeably too fast.

The speeds are fixed, so if the idler is sat on the pulley correctly, and there is no foreign matter on the pulley then it has always been the way it is and there is no way of changing that, short of changing the pulley itself (I don't think you can get the pulley off so it would mean the rotor would need replacing)

peter_sol · 4th Sep 2016, 12:18 am

always run slightly fast.

sp10mk11 · 4th Sep 2016, 9:07 am

In my opinion this is not uncommon on BSR decks I have rarely had one that was spot on, unless you want to turn down the motor pulley that's about it.

Gary

Edward Huggins · 4th Sep 2016, 9:34 am

Beware of dubious "servicing" and claims of "fully restored" on newly purchased vintage record players. Only relatively few can do this properly and mostly are old enough to have had historical experience of these. Edward

leslie5555 · 4th Sep 2016, 10:19 am

How do you know its running fast? Are you judging it by ear or have you used a strobe disc to check the speed?

Davisss · 4th Sep 2016, 5:06 pm

Thank you all. I shall have a look at the stepped pulley.

vidjoman · 4th Sep 2016, 8:46 pm

I think many autochangers ran fast so as to compensate when you had a load of 78's playing and the turntable slowed down. Seem to remember many ran fast. Probably just manufacturing tolerance of a low cost product.

3rd Sep 2016, 9:07 pm	#1
Davisss Retired Dormant Member Join Date: Sep 2016 Location: Leeds, West Yorkshire, UK. Posts: 3	BSR deck running too fast. Hello I have this Fidelity. It runs slightly fast and I have no idea how to adjust this. Hope someone can help. Thank you. Attached Thumbnails

3rd Sep 2016, 9:26 pm	#2
Edward Huggins Dekatron Join Date: Sep 2015 Location: Southwold, Suffolk, UK. Posts: 8,338	Re: BSR deck running too fast. The speeds on these can't be adjusted, but a fault on the drive to the turntable can. Does it run fast on all speeds? It is "fast" as such, or is it a "varying speed" with changes in pitch? Edward

3rd Sep 2016, 9:41 pm	#3
Nuvistor Dekatron Join Date: Aug 2013 Location: Wigan, Greater Manchester, UK. Posts: 9,433	Re: BSR deck running too fast. Check for build up of dirt on the stepped pulley. The build up increase the diameter of the pulley and increases the speed slightly. Frank

3rd Sep 2016, 10:13 pm	#4
Davisss Retired Dormant Member Join Date: Sep 2016 Location: Leeds, West Yorkshire, UK. Posts: 3	Re: BSR deck running too fast. Thank you both. It is more noticeable at 45. It is not varying, just slightly fast. There shouldn't really be dirt as it had a service (clean up, lubrication etc before I got it) . Dave

3rd Sep 2016, 11:50 pm	#5
Nuvistor Dekatron Join Date: Aug 2013 Location: Wigan, Greater Manchester, UK. Posts: 9,433	Re: BSR deck running too fast. The rubber from the idler wheel can build up on tbe stepped pulley, easy to check if it is that. Frank

3rd Sep 2016, 11:53 pm	#6
Clydeuk Hexode Join Date: Mar 2012 Location: Liverpool, Merseyside, UK. Posts: 453	Re: BSR deck running too fast. Have a look where the idler sits on the stepped pulley, it should be sitting cleanly on each step. I think there is a means of adjusting this up and down. I seem to remember having a player with this deck that did seem slightly faster than an older BSR deck I had, but in my case I thought the older deck was slightly slow. These aren't precision instruments and there may be variations, but it shouldn't be noticeably too fast. The speeds are fixed, so if the idler is sat on the pulley correctly, and there is no foreign matter on the pulley then it has always been the way it is and there is no way of changing that, short of changing the pulley itself (I don't think you can get the pulley off so it would mean the rotor would need replacing)

4th Sep 2016, 12:18 am	#7
peter_sol Octode Join Date: Aug 2003 Location: Welwyn Garden City, Herts. UK. Posts: 1,906	Re: BSR deck running too fast. always run slightly fast.

4th Sep 2016, 9:07 am	#8
sp10mk11 Octode Join Date: Feb 2009 Location: Cornwall, UK. Posts: 1,275	Re: BSR deck running too fast. In my opinion this is not uncommon on BSR decks I have rarely had one that was spot on, unless you want to turn down the motor pulley that's about it. Gary

4th Sep 2016, 9:34 am	#9
Edward Huggins Dekatron Join Date: Sep 2015 Location: Southwold, Suffolk, UK. Posts: 8,338	Re: BSR deck running too fast. Beware of dubious "servicing" and claims of "fully restored" on newly purchased vintage record players. Only relatively few can do this properly and mostly are old enough to have had historical experience of these. Edward

4th Sep 2016, 10:19 am	#10
leslie5555 Heptode Join Date: May 2015 Location: Reading, Berkshire, UK. Posts: 692	Re: BSR deck running too fast. How do you know its running fast? Are you judging it by ear or have you used a strobe disc to check the speed?

4th Sep 2016, 5:06 pm	#11
Davisss Retired Dormant Member Join Date: Sep 2016 Location: Leeds, West Yorkshire, UK. Posts: 3	Re: BSR deck running too fast. Thank you all. I shall have a look at the stepped pulley.

4th Sep 2016, 8:46 pm	#12
vidjoman Dekatron Join Date: Jun 2013 Location: East Sussex, UK. Posts: 3,326	Re: BSR deck running too fast. I think many autochangers ran fast so as to compensate when you had a load of 78's playing and the turntable slowed down. Seem to remember many ran fast. Probably just manufacturing tolerance of a low cost product.