Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12, 2025) x

Thread Closed

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: 415
.pdf schematic pt2.pdf Size: 107.1 KB  Downloads: 447
#2

Have you aligned it?
Alignment, especially IF will immediately reveal IF coil problems. As well as the others.

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
HiFi (Chifi) tube amp build - but my own design.
It's the other forum. I'm also in DIY, but mostly read there. Honestly, I kinda jumped into this without much thought to...TV MAN — 10:43 AM
Philco 71 Code 125
Hello,  I am in need of a schematic for this radio. Mine has the three separate circular tube shields and a shadow me...dconant — 08:06 AM
Stromberg Carlson 1500 Squeal
And life just keeps getting more complicated.dconant — 07:57 AM
54C Complete Teardown/Rebuild
Hello Roy, here is this one sincerely Richardradiorich — 12:45 AM
54C Complete Teardown/Rebuild
Richard, Had grabbed it already but thank you just the same.  I find myself wanting to find some way to block out the...glyphmon — 12:03 AM
54C Complete Teardown/Rebuild
Hello roy, here is a link to the schematic . Sincerely Richardradiorich — 11:54 PM
54C Complete Teardown/Rebuild
Richard, The Silvertone 2014 also is a transformerless set, so I am incorporating a 1:1 600 ohm audio isolation transfo...glyphmon — 11:37 PM
Preliminary work on wife's Silvertone 2014
Did an alignment today which was interesting.  IF alignment went great, almost all was already spot-on.  Adjusting on th...glyphmon — 11:35 PM
54C Complete Teardown/Rebuild
The main problem with adding a Bluetooth input is that this set lacks a traditional power transformer to isolate it from...radiorich — 11:19 PM
54C Cabinet Refinish
I started stripping this cabinet before it got super chilly out because I knew I wasn't going to be able to work on ...glyphmon — 11:18 PM

[-]
Who's Online
There are currently 1893 online users. [Complete List]
» 3 Member(s) | 1890 Guest(s)
AvatarAvatarAvatar

>