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 47-1227 Almost Playing
#1

Hello All,
I'm new to Philco Phorum and kinda new to radio restoration.  I started my small collection in 1982 but only in the last two years have I been learning/trying to repair them.  Home-schooling myself with books, videos, and websites.  So I have lots of questions.  

I've been working on my Philco 47-1227 for over four months now.  I've replaced everything in the chassis; resistors, electrolytics, capacitors, all 9 tubes. I've tested continuity on coils and transformer. The only thing that looks questionable is the antenna coil. It looks like someone did something to it at one time.

That said, at full power all I get is a low hum on the speaker at full volume. No station will tune in. Tonight I put a low power AM transmitter next to the chassis and could hear music on the speaker. I had to hold the speaker up to my ear to hear it. Moving the tuner made a small change in strength for the transmitter but no stations.

What comes to mind as a possible problem? Could it be the antenna coil? Bad IF coil?
All ideas are appreciated.

Thank You,
Steve


Attached Files
.pdf schematic pt1.pdf Size: 129.77 KB  Downloads: 183
.pdf schematic pt2.pdf Size: 107.1 KB  Downloads: 207


Messages In This Thread
Philco 47-1227 Almost Playing - by Philco47 - 05-06-2019, 09:56 PM
RE: Philco 47-1227 Almost Playing - by morzh - 05-07-2019, 08:29 AM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Restoration of the Canadian General Electric A-87
Well... The console body has been restored, while the varnish dries reliably I started to paint the chassis ...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
Part numbers to model cross
Jim, We have this index put together by Dale Cook but I don't think that is quite what you are looking for. The Parts...klondike98 — 09:37 PM
Philco Model 38-7: what caps & resistors do fail typically?
Yep the dim bulb test is OK but I'd definitely replace all those electrolytics before I did it. Since those #47 conden...klondike98 — 09:18 PM
Philco 42-345 Restoration/Repair
The resistor is a 2.2 Meg, it was the last one I hadn't replaced. The broadcast is coming in after replacing it.osanders0311 — 09:09 PM
Philco 42-345 Restoration/Repair
What does the resistor measure? I think it should be 3.3 Meg. If the oscillator coil has continuity and the resistanc...RodB — 09:03 PM
Philco Model 38-7: what caps & resistors do fail typically?
Good idea to check the coils... then I'll get hold of an incadescent light bulb and see what happens when the unit is sw...Musaeum — 08:49 PM
Philco 42-345 Restoration/Repair
I have that same set, ain't too much shortwave I like anyway.....it is a good AM DX set. PaulPaul Philco322 — 08:32 PM
Philco Model 38-7: what caps & resistors do fail typically?
Welcome to the Phorum, Martin! Open a new thread in Philco Electronic Restoration when you begin working on your 38-7. ...GarySP — 08:28 PM

[-]
Who's Online
There are currently 817 online users. [Complete List]
» 3 Member(s) | 814 Guest(s)
AvatarAvatarAvatar

>