Tube Radio Forum - The friendliest radio forum on the net!
Would you like to react to this message? Create an account in a few clicks or log in to continue.

What Gage Wire in Old radios?

Go down

What Gage Wire in Old radios? Empty What Gauge Wire in Old radios?

Post by ecarfar on Fri Aug 07, 2009 2:11 pm

I'm going to be restoring a few old radios from the 30's and have to get some cloth covered wire. Not sure if I should go with the 20 or 18 gauge 600v wire. Any ideas?

Thanks

ecarfar
New Member
New Member

Number of posts : 1
Registration date : 2009-08-07

Back to top Go down

What Gage Wire in Old radios? Empty Re: What Gage Wire in Old radios?

Post by Resistance is Futile on Mon Aug 10, 2009 2:45 pm

Since the current is small 20 gage should be acceptable. Just think of it this way. A 18 gage wire can handle about 1,600 watts if it is about 8-12 feet long as an extension cord. So a shorter length will handle even more. There is no way that most radios are designed to use the same amount of current.

Most old radios will use 35-260 watts. No more than an ordinary light bulb. If you used that size wire (20 gage) and it were a foot long you could probably handle the current like that of a portable heater of 4000 watts.

Most current in a radio will be used by the filaments and that could be on the order of 1.5 amps or 15 watts.

This is not precise but ball park figures.
Resistance is Futile
Resistance is Futile
Member
Member

Number of posts : 912
Registration date : 2008-03-12

Back to top Go down

What Gage Wire in Old radios? Empty Re: What Gage Wire in Old radios?

Post by mushroombrew on Sat Sep 05, 2009 2:18 pm

I've seen "repairs" done to 400 volt circuits with light gauge telephone patch panel wire. Not that I recommend you do that, but it should help put things in perspective. Smile

mushroombrew
Member
Member

Number of posts : 17
Age : 39
Registration date : 2009-09-03

Back to top Go down

What Gage Wire in Old radios? Empty Re: What Gage Wire in Old radios?

Post by Resistance is Futile on Sun Sep 06, 2009 1:59 pm

Just make sure the rated voltage is 125v or above.
Telephone wire is rated at about 32v- bad choice.
its the insulation and heat resistance that matters more than the Gage in none critical applications.
Resistance is Futile
Resistance is Futile
Member
Member

Number of posts : 912
Registration date : 2008-03-12

Back to top Go down

What Gage Wire in Old radios? Empty Re: What Gage Wire in Old radios?

Post by Sponsored content


Sponsored content


Back to top Go down

Back to top


 
Permissions in this forum:
You cannot reply to topics in this forum