Sony TC377 What does this bit do? - UK Vintage Radio Repair and Restoration Discussion Forum

PWH · 25th Nov 2019, 4:59 am

See picture.

Apart from the obvious that it engages with the rewind reel, it seems to have lots of ledges and settings. the two plastic halves turn but the triangular metal piece does not move. Should it? What would cause it to move. What does it do?

Ted Kendall · 25th Nov 2019, 8:08 am

It's an adjustable pre-load for the clutch, used to set tape tension. In normal use it doesn't move.

PWH · 25th Nov 2019, 8:08 pm

Thank you for the explanation!
Does it look to be set in the right place for normal use?

Ted Kendall · 25th Nov 2019, 8:42 pm

Well. it's set about in the middle of the range, so that was probably OK when it left the factory. To see whether it is still right. it would be best to consult the service manual. Try Hi Fi Engine.

MeerKat · 27th Nov 2019, 12:11 am

I have two of these and they are both set the same and that is one notch anticlockwise from the one shown in the picture.

PWH · 3rd Dec 2019, 1:26 am

Thanks I'll go with one notch anticlockwise. It was 1/2 way between two settings when I took it out

25th Nov 2019, 4:59 am	#1
PWH Heptode Join Date: Mar 2003 Location: Waiheke Island, New Zealand Posts: 503	Sony TC377 What does this bit do? See picture. Apart from the obvious that it engages with the rewind reel, it seems to have lots of ledges and settings. the two plastic halves turn but the triangular metal piece does not move. Should it? What would cause it to move. What does it do? Attached Thumbnails

25th Nov 2019, 8:08 am	#2
Ted Kendall Dekatron Join Date: Jul 2008 Location: Kington, Herefordshire, UK. Posts: 3,670	Re: Sony TC377 What does this bit do? It's an adjustable pre-load for the clutch, used to set tape tension. In normal use it doesn't move.

25th Nov 2019, 8:08 pm	#3
PWH Heptode Join Date: Mar 2003 Location: Waiheke Island, New Zealand Posts: 503	Re: Sony TC377 What does this bit do? Thank you for the explanation! Does it look to be set in the right place for normal use?

25th Nov 2019, 8:42 pm	#4
Ted Kendall Dekatron Join Date: Jul 2008 Location: Kington, Herefordshire, UK. Posts: 3,670	Re: Sony TC377 What does this bit do? Well. it's set about in the middle of the range, so that was probably OK when it left the factory. To see whether it is still right. it would be best to consult the service manual. Try Hi Fi Engine.

27th Nov 2019, 12:11 am	#5
MeerKat Hexode Join Date: Jan 2016 Location: Ramsgate, Kent, UK. Posts: 298	Re: Sony TC377 What does this bit do? I have two of these and they are both set the same and that is one notch anticlockwise from the one shown in the picture. __________________ Andrew Illegitimi non carborundum

3rd Dec 2019, 1:26 am	#6
PWH Heptode Join Date: Mar 2003 Location: Waiheke Island, New Zealand Posts: 503	Re: Sony TC377 What does this bit do? Thanks I'll go with one notch anticlockwise. It was 1/2 way between two settings when I took it out