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Vintage Radio Protector #152429
03/26/05 07:04 PM
03/26/05 07:04 PM
Trumpy  Offline
OP
Member
Joined: Jul 2002
Posts: 8,231
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]

Tools for Electricians:
Re: Vintage Radio Protector #152430
03/27/05 07:36 PM
03/27/05 07:36 PM
C
classicsat  Offline
Member
Joined: Nov 2002
Posts: 456
The same way as a telephone protector.
One lead is earthed, one to aerial.

Re: Vintage Radio Protector #152431
03/27/05 07:58 PM
03/27/05 07:58 PM
Trumpy  Offline
OP
Member
Joined: Jul 2002
Posts: 8,231
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]

Re: Vintage Radio Protector #152432
04/24/05 10:51 PM
04/24/05 10:51 PM
L
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
Re: Vintage Radio Protector #152433
12/13/05 06:46 AM
12/13/05 06:46 AM
R
RODALCO  Offline
Member
Joined: Dec 2005
Posts: 856
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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