47-1227 - Radio will not tune in any stations.
Posts: 33
Threads: 3
Joined: May 2018
City: Middletown, PA
State, Province, Country: Pa
I have a Philco model 47-1227. It has been completely restored. All capacitors and resistors have been replaced. The audio works. We get sound from the record player but unable to tune in any stations. Have minis 2.5 volts at osc. tube. osc. tube does not change voltage when tuning dial is changed. No am or fm. Any ideal what's wrong? HELP!!!!!!!!?!
(This post was last modified: 06-09-2019, 06:53 PM by Lucky.)
Posts: 7,300
Threads: 268
Joined: Dec 2009
City: Roslyn Pa
Time to break out the signal generator and inject a modulated 455kc signal @ test point A. This is w/the set set up to receive an AM signal and see what you get from the spkr.
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!
Terry
Posts: 33
Threads: 3
Joined: May 2018
City: Middletown, PA
State, Province, Country: Pa
Receive nothing from test point A or when connected to antenna
Posts: 7,300
Threads: 268
Joined: Dec 2009
City: Roslyn Pa
Ok inject a 455kc signal @ pin 1 of the 6ba6 and see what you get from the spkr.
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!
Terry
Posts: 33
Threads: 3
Joined: May 2018
City: Middletown, PA
State, Province, Country: Pa
We get nothing from pin 1
Posts: 7,300
Threads: 268
Joined: Dec 2009
City: Roslyn Pa
How about pin 6 on the 7R7.
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!
Terry
Posts: 33
Threads: 3
Joined: May 2018
City: Middletown, PA
State, Province, Country: Pa
Pin 6 works with. Get loud tone
Posts: 33
Threads: 3
Joined: May 2018
City: Middletown, PA
State, Province, Country: Pa
06-09-2019, 08:38 PM
Pin 6 works. Hey loud tone.
(This post was last modified: 06-09-2019, 08:39 PM by Lucky.)
Posts: 7,300
Threads: 268
Joined: Dec 2009
City: Roslyn Pa
Ok so you have a problem around the 6BA6. Check the pin voltages according t o the service info. Also be sure the heater is lit.
When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!
Terry
(This post was last modified: 06-09-2019, 08:46 PM by Radioroslyn.)
Posts: 33
Threads: 3
Joined: May 2018
City: Middletown, PA
State, Province, Country: Pa
pin 1. -.26 volts
pin 2. 0 volts
pin 3. 0 volts
pin 4. 0 volts
pin 5. 280 volts
pin 6. -1.14 volts
pin 7. .06 volts
Heater is lit
(This post was last modified: 06-09-2019, 09:09 PM by Lucky.)
Posts: 194
Threads: 43
Joined: Jan 2019
City: Brownsville 42210
State, Province, Country: Kentucky
filament should be pin 3 & 4 and pin 6 should be 100v
(This post was last modified: 06-09-2019, 09:48 PM by jake wells.
Edit Reason: error
)
Posts: 33
Threads: 3
Joined: May 2018
City: Middletown, PA
State, Province, Country: Pa
pin 3 grounded at center of tube
pin 4 shows 6.6 volts ac
The tube is lit and working
Posts: 194
Threads: 43
Joined: Jan 2019
City: Brownsville 42210
State, Province, Country: Kentucky
pin 6 should not be reading -1.14 it should be 100V check the resistors and capacitors in that circuit.
Posts: 33
Threads: 3
Joined: May 2018
City: Middletown, PA
State, Province, Country: Pa
Will check Tomorrow night.
Posts: 194
Threads: 43
Joined: Jan 2019
City: Brownsville 42210
State, Province, Country: Kentucky
Users browsing this thread: 1 Guest(s)
|
|
Recent Posts
|
|
The list of my radio & TV collection!
|
| Yes, Michael. But strangely enough, I managed to keep the original veneer. I must admit that I don't really like it, so ...RadioSvit — 02:21 PM |
|
The list of my radio & TV collection!
|
| Good radio.
I bet there was a lot of veneer fixing.morzh — 02:16 PM |
|
Philco 46-480 Electronic Restoration
|
| >> it is because I am retired and a little demented.
You have just the right amount of it. No perfectly sane p...morzh — 02:14 PM |
|
The list of my radio & TV collection!
|
| Old Zenith 5S-29 tube radio. First turn-on after repair and reception quality testing. Demonstration of the operation of...RadioSvit — 01:27 PM |
|
Philco 42-345 Restoration/Repair
|
| Welcome to the Phorum, osanders0311! Regardless how far you intend to restore this set, first priority should be replac...GarySP — 11:51 AM |
|
Philco 46-480 Electronic Restoration
|
| Joseph, it is because I am retired and a little demented. My problem is that I wanted to own a collection that spans th...MrFixr55 — 11:29 AM |
|
Philco 46-480 Electronic Restoration
|
| Wow, here I am with only two restored radios. I’ve got to boost those numbers! If you can’t run with the big dogs, you m...jrblasde — 10:04 AM |
|
Philco 46-480 Electronic Restoration
|
| Hello MrFixr55,
That will for sure keep you out of trouble!
Last Sunday was spent mostly doing yard work anyway the we...radiorich — 09:50 AM |
|
Philco 46-480 Electronic Restoration
|
| Throw in all the Audio equipment that has to be kept in a bedroom (my office)L. 8 portable self contained PA speakers, ...MrFixr55 — 07:40 AM |
|
Philco 42-345 Restoration/Repair
|
| Looking at the pic supplied by Rod B, you can duplicate the missing loop antenna. 10 gauge copper wire can be used to m...MrFixr55 — 01:20 AM |
|
Who's Online
|
There are currently 253 online users. [Complete List]
» 1 Member(s) | 252 Guest(s)
|
|
|
|
 
|
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
