Asbestos in Old AVO's? - UK Vintage Radio Repair and Restoration Discussion Forum

Bazz4CQJ · 18th Dec 2021, 4:03 pm

I'm a member of a forum not related to radio matters, and one member has queried whether there were ever asbestos packing pieces inside the battery compartment (model not specified). Anyone ever seen such things?

B

18th Dec 2021, 4:19 pm

I have never seen asbestos in an AVO.

Bazz4CQJ · 18th Dec 2021, 4:42 pm

There's certainly none in mine. He has what looks like some kind of fibre board about 4mm thick in the bat box, either side of where the D cell slots in.

B

paulsherwin · 18th Dec 2021, 9:04 pm

I've also never seen asbestos in an AVO meter, and there's no reason why it would be used. I'm certainly no expert though.

The Philpott · 18th Dec 2021, 9:34 pm

Not to my knowledge. For one thing there were far more suitable materials available. Can't exclude the possibility of the insertion of a foreign object by a fettler from the past, of course.

The only place i have seen asbestos is on the discrete heavy duty DC current shunt accessories.

Dave

Bazz4CQJ · 18th Dec 2021, 10:44 pm

Perhaps it's panic induced by the joint pressures of the Season and the pandemic; the picture that was posted looks nothing like any asbestos I've ever seen.

B

Sinewave · 19th Dec 2021, 11:43 am

Some early Avos did have asbestos rope gaskets before the rubber ones were available. As for the packing in the battery compartment, if it's a hard fibre looking pad on an early model, then it's possible. The current shunts from the test range extension kits certainly had asbestos under the elements.

18th Dec 2021, 4:03 pm	#1
Bazz4CQJ Dekatron Join Date: Apr 2009 Location: Oxfordshire, UK. Posts: 4,935	Asbestos in Old AVO's? I'm a member of a forum not related to radio matters, and one member has queried whether there were ever asbestos packing pieces inside the battery compartment (model not specified). Anyone ever seen such things? B __________________ Saturn V had 6 million pounds of fuel. It would take thirty thousand strong men to lift it an inch.

18th Dec 2021, 4:19 pm	#2
Guest Guest Posts: n/a	Re: Asbestos in Old Avo's ? I have never seen asbestos in an AVO.

18th Dec 2021, 4:42 pm	#3
Bazz4CQJ Dekatron Join Date: Apr 2009 Location: Oxfordshire, UK. Posts: 4,935	Re: Asbestos in Old Avo's ? There's certainly none in mine. He has what looks like some kind of fibre board about 4mm thick in the bat box, either side of where the D cell slots in. B __________________ Saturn V had 6 million pounds of fuel. It would take thirty thousand strong men to lift it an inch.

18th Dec 2021, 9:04 pm	#4
paulsherwin Moderator Join Date: Jun 2003 Location: Oxford, UK Posts: 27,970	Re: Asbestos in Old Avo's ? I've also never seen asbestos in an AVO meter, and there's no reason why it would be used. I'm certainly no expert though.

18th Dec 2021, 9:34 pm	#5
The Philpott Dekatron Join Date: Aug 2016 Location: Colchester, Essex, UK. Posts: 4,108	Re: Asbestos in Old Avo's ? Not to my knowledge. For one thing there were far more suitable materials available. Can't exclude the possibility of the insertion of a foreign object by a fettler from the past, of course. The only place i have seen asbestos is on the discrete heavy duty DC current shunt accessories. Dave

18th Dec 2021, 10:44 pm	#6
Bazz4CQJ Dekatron Join Date: Apr 2009 Location: Oxfordshire, UK. Posts: 4,935	Re: Asbestos in Old AVO's? Perhaps it's panic induced by the joint pressures of the Season and the pandemic; the picture that was posted looks nothing like any asbestos I've ever seen. B __________________ Saturn V had 6 million pounds of fuel. It would take thirty thousand strong men to lift it an inch.

19th Dec 2021, 11:43 am	#7
Sinewave Octode Join Date: May 2016 Location: Oxfordshire/Bucks borders, UK. Posts: 1,604	Re: Asbestos in Old AVO's? Some early Avos did have asbestos rope gaskets before the rubber ones were available. As for the packing in the battery compartment, if it's a hard fibre looking pad on an early model, then it's possible. The current shunts from the test range extension kits certainly had asbestos under the elements. __________________ Avometer, vintage Fluke and Marconi collector. Also interested in vintage Yaesu and KW. Last edited by Sinewave; 19th Dec 2021 at 11:53 am.