[philco22]

Hi,I just bought a Philco 41-603 to restore. The first thing I did was replace the power cord and turn on the radio. All I got was a loud hum.Do you have any suggestions? How do I bring up photos posted.

[morzh]

Philco 22

You are better off creating a separate thread.

For the future: it is always better first to ask question like this one and only then power on radios provided this would be recommended. Usually this is absolutely NOT something you want to do.
I will wait until this is moved to a new thread, then we can continue.

[Ron Ramirez]

Your wish is my command, Morzh. Split into a new topic.

Philco22 - As Morzh said, please do not plug that set in again until we help you figure out what is wrong. Usually this is an indication of failed electrolytic capacitors but other problems can also cause hum.

Do you mean 41-603? There is no such thing as a 41-630.

Now, as for photos, instructions for posting photos may be found here:

http://www.philcoradio.com/phorum/showthread.php?tid=29
http://www.philcoradio.com/phorum/showth...p?tid=4371 <--- slightly outdated since Photobucket has undergone a complete makeover, but should still be helpful.
http://www.philcoradio.com/phorum/showth...p?tid=4407

[morzh]

First things first.

Try to locate (maybe Ron can give you a/the link) numerous discussion that tell you what to do to a newly acquired old radio that either has not been restored or the restoration is being questioned.

Basically, you do not power the radio until:

1. You verified that the caps (all of them preferably but as a minimum all electrolytics) have been replaced.
2. You check everything for shorts.
3. You inspected your power cord and replaced it if necessary.
4. You checked your transformer output using a Variac.
5. You checked your tubes.
6. You checked your rectifier output.

Then you can bring it up using a Variac, measure the voltages...etc.

[Ron Ramirez]

Sure can:

http://www.philcoradio.com/tech/plugin.htm

http://www.antiqueradio.org/powerup.htm

[morzh]

Thanks Ron.

Philco 22, now go do the homework; if you have questions along the way, we here will be glad to help.

[philco22]

You are all right it is a Philco 41-603 Radio / phonograph. I will check the tubes first,then look for shorts. Thanks for the advice. Tim

[philco22]

I have started to replace the caps and the old electrolytic cap is 20 mfd. It has a red positive at one end and a black negative and a yellow positive at the other end. I have a new cap
that is 22 uf with 450 volts that has one positive wire and one negative wire. I know that the
new cap negative has to go to the negative on the radio. how do I wire the two positive
wires ?
Tim

[morzh]

You cannot wire it just like that. One is a dual cap and the other is a single with negative not directly connected to the can. You need two of those to replace one of the original.