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: 7,323
Threads: 270
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 it!
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: 7,323
Threads: 270
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 it!
Terry
Posts: 33
Threads: 3
Joined: May 2018
City: Middletown, PA
State, Province, Country: Pa
We get nothing from pin 1
Posts: 7,323
Threads: 270
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 it!
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: 7,323
Threads: 270
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 it!
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
|
|
Plug Voltages Needed For A 1943 CRV-20130 Power Supply
|
| That looks a lot like an aircraft connector of some kind, even if it's a U.S.N power supply. I have a book somewhere abo...Arran — 02:56 AM |
|
Plug Voltages Needed For A 1943 CRV-20130 Power Supply
|
| hello david,
I have a similar generator in my collection that features a cast iron, single-cylinder Briggs & Stratt...radiorich — 01:00 AM |
|
under chassis parts locator diagram for 1938 Zenith 9s262
|
| Has anyone gone to the trouble of creating an under chassis parts locator image? Yes, I can identify components by foll...bobloney — 08:57 PM |
|
Plug Voltages Needed For A 1943 CRV-20130 Power Supply
|
| Try looking at this site the book mark is for a old generator that I was given. David https://radionerds.com/index.ph...David — 08:36 PM |
|
Plug Voltages Needed For A 1943 CRV-20130 Power Supply
|
| Hello Everyone,
I am looking for voltage identification for all the pin positions on the socket of a CRV-20130 power su...Tonym4704 — 08:16 PM |
|
Philco P45-6365 Universal Transformer Instruction Manual
|
| Can anyone guide me to where this may be found?GRG — 03:00 PM |
|
54C Complete Teardown/Rebuild
|
| I don't think that I have encountered a 12Z3 before, curious how it uses one of those but includes a #43, which is a 25 ...Arran — 02:17 PM |
|
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 |
|
Who's Online
|
There are currently 1778 online users. [Complete List]
» 1 Member(s) | 1777 Guest(s)
|
|
|
|
 
|
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
