Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

Thread Closed
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

philco 80 jr. help please. 1st time restoring a radio this old
#25

hi all,

well i finished the component replacement yesterday as i received the correct volume pot from Gary at play things of the past. (thank goodness for him, as i dont think there was another one available anywhere!)

i connected the speaker, turned the unit on, and------ all i get is a loud hum from the speaker. Icon_sad

tuning control makes no difference, and neither does the volume control.

just to give you guys all the info, here is what has been replaced:

all components except for the variable tuning capacitor, and the tuning condenser caps on the back have been replaced. (i have checked the wiring and it is correct as per the "philco 80" schematic)

all tubes were replaced with tubes i bought on ebay. (im pretty savvy with ebay and made sure that the people i bought them from were reputable and stated that the tubes tested in good/ excellent condition)

i measured the resistance of all the coils while all the parts were removed and they all seemed to be within specs, but i have been soldering on them quite a bit while installing the components, so i guess one could have opened up from too much heat.

can i measure the coil resistances with all the components in the radio?

is there a list of correct voltages for the tube sockets?

any other ideas?

i did not test the volume pot i received, and i will do this right away just to eliminate it.

thanks for any advice, the expertise on this site is invaluable to a guy in my shoes!

LC


Messages In This Thread
RE: philco 80 jr. help please. 1st time restoring a radio this old - by loosecannon - 09-05-2014, 03:07 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco Model 38-7: what caps & resistors do fail typically?
Since you stated earlier, you have a console 38-7XX.  They also had a 38-7T (table), and 38-7CS (chairside).  A very nic...GarySP — 01:18 PM
Part numbers to model cross
That I wouldn't know, but sometimes the radio document itself shows one, same as the capacitor cans' etc pinouts.morzh — 12:46 PM
Part numbers to model cross
Thank you morzh, that is exactly what I was looking for. Now , is there some where that shows pinouts for Philco power ...Jim Dutridge — 11:37 AM
Restoration of the Canadian General Electric A-87
Thanks for your help Michael. In fact, this video is only an intermediate result. Later I had to apply another tinting l...RadioSvit — 09:01 AM
Restoration of the Canadian General Electric A-87
Great job on the cabinet. PS. In the US notation, "kenotron" refers to specific type of tubes; we call re...morzh — 08:24 AM
Part numbers to model cross
This document has at least some tables of models and parts used. Example: Choke 32-7572, used in 604 radio. Search f...morzh — 08:19 AM
Restoration of the Canadian General Electric A-87
I also checked all the radio tubes on my Hickok 530 tube tester. The 5Z3 kenotron turned out to be faulty, all the other...RadioSvit — 08:02 AM
Restoration of the Canadian General Electric A-87
Well... While the varnish is drying up, I started repairing the chassis... Of course I started by replacing the pa...RadioSvit — 07:12 AM
Philco Model 38-7: what caps & resistors do fail typically?
Hello Martin, Welcome aboard our little community what great Model 38-7 Sincerely Richardradiorich — 12:30 AM
Philco Model 38-7: what caps & resistors do fail typically?
Welcome to the Phorum Martin. I count about 9 paper caps, the 3 electrolytic caps and 2-Y2 safety caps to replace th...RodB — 09:44 PM

[-]
Who's Online
There are currently no members online.

>