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#152429 - 03/26/05 08:04 PM Vintage Radio Protector  
Trumpy  Offline


Member
Joined: Jul 2002
Posts: 8,217
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.

[Linked Image]

[Linked Image]

[Linked Image]

How would one of these have been used?. [Linked Image]


Let's face it, these days if you're not young, you're old - Red Green grin

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#152430 - 03/27/05 08:36 PM Re: Vintage Radio Protector  
classicsat  Offline
Member
Joined: Nov 2002
Posts: 456
The same way as a telephone protector.
One lead is earthed, one to aerial.


#152431 - 03/27/05 08:58 PM Re: Vintage Radio Protector  
Trumpy  Offline


Member
Joined: Jul 2002
Posts: 8,217
SI,New Zealand
Thanks classicsat!. [Linked Image]
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?. [Linked Image]


Let's face it, these days if you're not young, you're old - Red Green grin

#152432 - 04/24/05 11:51 PM Re: Vintage Radio Protector  
Larry Fine  Offline
Member
Joined: Feb 2005
Posts: 693
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.


Larry Fine
Fine Electric Co.
fineelectricco.com

#152433 - 12/13/05 07:46 AM Re: Vintage Radio Protector  
RODALCO  Offline
Member
Joined: Dec 2005
Posts: 854
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


The product of rotation, excitation and flux produces electricty.


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