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#152429 - 03/26/05 04:04 PM Vintage Radio Protector
Trumpy Offline


Member
Registered: 07/05/02
Posts: 8211
Loc: SI,New Zealand
Here's a thing that a mate of mine was showing me recently.
I have no idea how it got over to here in New Zealand.
It's a:
Radio Protector Model No. R-73, Manufactured by Cook Electric Co, Chicago.







How would one of these have been used?.
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#152430 - 03/27/05 04:36 PM Re: Vintage Radio Protector
classicsat Offline
Member
Registered: 11/23/02
Posts: 456
The same way as a telephone protector.
One lead is earthed, one to aerial.
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#152431 - 03/27/05 04:58 PM Re: Vintage Radio Protector
Trumpy Offline


Member
Registered: 07/05/02
Posts: 8211
Loc: SI,New Zealand
Thanks classicsat!.
I was just trying to work out what the objects
to the left of the knife switch were.
I'm merely guessing that the long cylindrical thing is some sort of a Discharge tube or a fuse?.
Anyone seen one of these before?.
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Let's face it, these days if you're not young, you're old - Red Green grin
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#152432 - 04/24/05 08:51 PM Re: Vintage Radio Protector
Larry Fine Offline
Member
Registered: 02/18/05
Posts: 693
Loc: Richmond, VA
You are correct: the thin cylinder is a fuse, and the can contains a spark-gap lightning arrestor. The aerial connects to the upper fuse end, the radio to the upper switch contact, and ground to the lower switch contact.

The switch was used to 'earth' the aerial whenever the radio wasn't in use, and especially during a storm, to bypass any high voltage to ground. Note that the switch blade's only contact is to the fuse bottom end, inside the porcelain.
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Larry Fine
Fine Electric Co.
fineelectricco.com
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#152433 - 12/13/05 03:46 AM Re: Vintage Radio Protector
RODALCO Offline
Member
Registered: 12/08/05
Posts: 854
Loc: Titirangi, Akld, New Zealand
Trumpy,

It looks like the old telecom lightning arrestor when you have an overhead phoneline, those had two fuse elements, the same size as that fuse or tube shown on your photo.

I will post a photo.

Cheers

Ray
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