Wanted: Eccentricity Gauge for Sony Betamax. - UK Vintage Radio Repair and Restoration Discussion Forum

Snarf81 · 13th Jan 2021, 6:04 pm

Hi all.

Does anyone have an eccentricity gauge and bracket for sale/loan/hire please?

I've been given a Sony SL-C7 Beta vcr and the head is worn. I'm not even going to attempt to change it unless I can find a gauge.

I've tried to capture the streaking on the pictures but my tablet camera doesn't seem to catch them.

Many thanks

Rich.

greg_simons · 14th Jan 2021, 1:00 am

Hi there
I can certainly lend you my own if you wish, hope you are able to obtain a head disc, the upper drum is also a bit of a problem.
Greg.

Nuvistor · 14th Jan 2021, 7:00 am

Post #6 from Glynn, he made his own gauge, Greg’s gauge would be better but if you are stuck it’s a good idea from Glynn.
https://www.vintage-radio.net/forum/...d.php?t=100135

G6ONEDave · 14th Jan 2021, 10:42 am

Search for 'dial gauge' on engineering supplier web sites, such as 'Cromwell Tools' or 'RDG Tools', there are plenty of options out there. Some have a lever whilst others are a ball that pushes into an outer sleeve. They are often used on lathes for the same purpose as in head alignment. You should be able to get one for less than £30 brand new.
Dave

Snarf81 · 14th Jan 2021, 11:40 am

Thank you for the replies! Very much appreciated.

Greg's proper gauge would be the best option for me at this moment, but I'll look into those other two options mentioned.

Many thanks

Rich.

davyrocket2 · 14th Jan 2021, 12:45 pm

If you know anyone that does engineering they may have a dial gauge which when mounted has a moving plunger which operates the dial to see when the head moves off centre position

Snarf81 · 15th Jan 2021, 11:02 am

Thanks for the replies.

Greg has very kindly agreed to let me borrow his gauge which I'm very grateful for.
I can then replace the heads in the C7, plus another C7 in storage, and two Toshiba vcrs (V8600 and V5470 Bush clone).

I'll certainly look into obtaining a dial gauge of my own for any future head changes.

Many thanks again

Rich.

Cobaltblue · 15th Jan 2021, 11:54 am

As Rich is now sorted I will close this thread we look forward to Rich posting when he takes on those wayward Sony and Toshiba's

Cheers

Mike T

13th Jan 2021, 6:04 pm	#1
Snarf81 Hexode Join Date: Aug 2018 Location: Rogiet, Monmouthshire, Wales, UK. Posts: 479	Wanted: Eccentricity Gauge for Sony Betamax. Hi all. Does anyone have an eccentricity gauge and bracket for sale/loan/hire please? I've been given a Sony SL-C7 Beta vcr and the head is worn. I'm not even going to attempt to change it unless I can find a gauge. I've tried to capture the streaking on the pictures but my tablet camera doesn't seem to catch them. Many thanks Rich. Attached Thumbnails

14th Jan 2021, 1:00 am	#2
greg_simons Heptode Join Date: Jul 2004 Location: Evesham, Worcestershire, UK. Posts: 909	Re: Wanted: Eccentricity Gauge for Sony Betamax. Hi there I can certainly lend you my own if you wish, hope you are able to obtain a head disc, the upper drum is also a bit of a problem. Greg. __________________ Picture, sound?, DOOR.

14th Jan 2021, 7:00 am	#3
Nuvistor Dekatron Join Date: Aug 2013 Location: Wigan, Greater Manchester, UK. Posts: 8,277	Re: Wanted: Eccentricity Gauge for Sony Betamax. Post #6 from Glynn, he made his own gauge, Greg’s gauge would be better but if you are stuck it’s a good idea from Glynn. https://www.vintage-radio.net/forum/...d.php?t=100135 __________________ Frank

14th Jan 2021, 10:42 am	#4
G6ONEDave Heptode Join Date: Dec 2019 Location: Owston Ferry, North Lincolnshire, UK. Posts: 515	Re: Wanted: Eccentricity Gauge for Sony Betamax. Search for 'dial gauge' on engineering supplier web sites, such as 'Cromwell Tools' or 'RDG Tools', there are plenty of options out there. Some have a lever whilst others are a ball that pushes into an outer sleeve. They are often used on lathes for the same purpose as in head alignment. You should be able to get one for less than £30 brand new. Dave

14th Jan 2021, 11:40 am	#5
Snarf81 Hexode Join Date: Aug 2018 Location: Rogiet, Monmouthshire, Wales, UK. Posts: 479	Re: Wanted: Eccentricity Gauge for Sony Betamax. Thank you for the replies! Very much appreciated. Greg's proper gauge would be the best option for me at this moment, but I'll look into those other two options mentioned. Many thanks Rich.

14th Jan 2021, 12:45 pm	#6
davyrocket2 Pentode Join Date: Apr 2011 Location: Westgate On Sea, Kent, UK. Posts: 219	Re: Wanted: Eccentricity Gauge for Sony Betamax. If you know anyone that does engineering they may have a dial gauge which when mounted has a moving plunger which operates the dial to see when the head moves off centre position

15th Jan 2021, 11:02 am	#7
Snarf81 Hexode Join Date: Aug 2018 Location: Rogiet, Monmouthshire, Wales, UK. Posts: 479	Re: Wanted: Eccentricity Gauge for Sony Betamax. Thanks for the replies. Greg has very kindly agreed to let me borrow his gauge which I'm very grateful for. I can then replace the heads in the C7, plus another C7 in storage, and two Toshiba vcrs (V8600 and V5470 Bush clone). I'll certainly look into obtaining a dial gauge of my own for any future head changes. Many thanks again Rich.

15th Jan 2021, 11:54 am	#8
Cobaltblue Moderator Join Date: Dec 2010 Location: Exeter and Poole, UK. Posts: 4,332	Re: Wanted: Eccentricity Gauge for Sony Betamax. As Rich is now sorted I will close this thread we look forward to Rich posting when he takes on those wayward Sony and Toshiba's Cheers Mike T __________________ Don't care if it was a bargain why's it in my kitchen Mike T BVWS member. www.cossor.co.uk