The PHILCO Phorum
Philco 53C questions - Printable Version

+- The PHILCO Phorum (https://philcoradio.com/phorum)
+-- Forum: Philco Radio Discussions (https://philcoradio.com/phorum/forumdisplay.php?fid=5)
+--- Forum: Philco Electronic Restoration (https://philcoradio.com/phorum/forumdisplay.php?fid=8)
+--- Thread: Philco 53C questions (/showthread.php?tid=10354)

Pages: 1 2 3

RE: Philco 53C questions - OldRestorer - 09-01-2014

Ok,
The 2 Electrolytic cans are 30-2000 and E0112 but I cant find the value on the repair bench or in the schematic...

Anyone know what the values for these are?

Kirk

RE: Philco 53C questions - morzh - 09-01-2014

Kirk

These are same or close to what is in your Century.

Use 20 to 40 uF or the first cap, and about 20uF as the second. (we are tlking of ##30 and 31).

RE: Philco 53C questions - OldRestorer - 09-01-2014

I found a schematic and it says 8uF each.

http://www.philcoradio.com/tech/images/53.jpg

RE: Philco 53C questions - sam - 09-01-2014

kirk look on beitmans pg 1 schematic 121 and 122

RE: Philco 53C questions - tab10672 - 09-01-2014

Kirk,
.68 should be ok, it is actually closer in tolerance than 1.0

RE: Philco 53C questions - morzh - 09-01-2014

If it says enough, it is enough. The tube can take 40uF, and with 1/2 peiode rectifier the more the better, but then if current is small 8uF could just do it.
On similar radios of other companies I see 20uF plus for the first cap.


Why I am saying this, if you do not have 8uF but have 22uF, it is jst fine to use it. The WV should be at least 250V, it does not have to be 500V Philco usual.

RE: Philco 53C questions - OldRestorer - 09-01-2014

Well I finished up the radio chassis and upon bringing it up, it is dead Icon_sad
No life in the radio at all. There were indications on the chassis of burn marks on the cans and stuff so I am not surprised.

At least it looks nice...

what would be the first thing I would check on a dead radio?

Kirk

RE: Philco 53C questions - sam - 09-01-2014

switch good ? any tubes light hum ? rectifier tube good
cabinet looks great

RE: Philco 53C questions - morzh - 09-01-2014

Kirk

1. See if there is high volts across caps 30 and 31. If not, check your 12Z3 rectifier tube.

Then we will proceed.

RE: Philco 53C questions - Warren - 09-01-2014

I'd say make sure you have power coming from the power supply section first.

RE: Philco 53C questions - Ron Ramirez - 09-01-2014

And don't forget to check those two big resistors, part (29), mounted on top of the chassis, inside that cage at chassis right (when looking at the chassis from the rear).

Both of those resistors are open in my 53C. One of many radios and stereo receivers I have yet to get to.

RE: Philco 53C questions - OldRestorer - 09-01-2014

I dont know how to check for high volts but I checked all the tubes.
1 77 is very weak and the 43 tube is showing up dead (as in 0). When I plugged it in I noticed a spark from the area of the 43 tube. I could not tell if it was inside the tube or not. Checked the area and nothing amiss.
The rectifier is very strong so that rules that out.

Guess what tubes I dont have out of the 2000 I bought... Any guesses?
A 43 and another 77... Icon_rolleyes

There is nothing Sam, no hint of life, no hum, no action from the tubes, nothing....

I dont think I am going to be able to do what I know you guys are going to recommend.. Lets see if I am right Icon_lol

Whats next?

Thanks for the help so far

Kirk

RE: Philco 53C questions - morzh - 09-01-2014

Well, you could alwayz bring them to Kutztown.

Next?

Get the toobs. With sparks and 0 on the tester it won't work even if you pray to it.

RE: Philco 53C questions - OldRestorer - 09-01-2014

I was afraid you were going to say that Ron. I kinda feel like the spark came from them Icon_e_surprised

I am getting the tubes now but how does one check those huge resistors?
Same as a regular resistor?

Kirk

RE: Philco 53C questions - morzh - 09-01-2014

A Resistor is a resistor...any resistor is checked with the same Ohmmeter.