Posts: 160
Threads: 42
Joined: Apr 2011
City: New Port Richey
State, Province, Country: Florida
This is an 11 inch speaker. I was told it came from a 37-630 but I can't confirm this based on the following part numbers. There is no number stamped on the basket. The number AU-2562-WA7 is stamped on the field coil and the output transformer has the number 32-7560N on it. The field coil reads 1.2K, primary of the output transformer reads 168 ohms and the voice coil reads about .5 ohms. My searches are coming up empty. I'm hoping someone here can be of further help.
Thanks,
Pepperoni
"It's Nice To Be Nice To The Nice"
Major Frank Burns Mash 4077th
Posts: 15,819
Threads: 554
Joined: Oct 2011
City: Jackson, NJ
Photos always help.
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.
Posts: 160
Threads: 42
Joined: Apr 2011
City: New Port Richey
State, Province, Country: Florida
"It's Nice To Be Nice To The Nice"
Major Frank Burns Mash 4077th
Posts: 16
Threads: 2
Joined: Mar 2015
City: Ellington, CT
Looks pretty close. I just removed a chassis and speaker from a 37-630 a week ago. Looks identical other than the missing wire cover and that the number on the field coil is stamped AH-2557-W... lettering past the W is obscured.
Posts: 160
Threads: 42
Joined: Apr 2011
City: New Port Richey
State, Province, Country: Florida
I removed the wire cover from the output transformer for the purpose of taking a pic of the transformer. Here's the best specs I can find for the 37-630 model speaker and it's labeled as a -630X. Note the specs on the transformer and field coil highlighted in red. The output transformer on this speaker reads 168 ohms as stated earlier.
Can I use the speaker in question on my 37-630?
H-24
10-1/2"
36-1224
37-630X
1-6F6G as Pentode
2580
7,100 Ω
1.25 Ω
02625
450 Ω - Output Transformer Primary
36-3665
1140 Ω - Field Coil Resistance
Pepperoni
"It's Nice To Be Nice To The Nice"
Major Frank Burns Mash 4077th
Posts: 7,285
Threads: 268
Joined: Dec 2009
City: Roslyn Pa
Don't think it would a problem. The important factors are the impedance of the primary of the output transformer (not the dc resistance, that tells you nothing other than the transformer is usable or defective). The field coil resistance isn't particularly critical as most Philco set the coil isn't used to develop - bias by being connected to the ct of the power transformer. When it's connected to the + side of the power supply a different resistance will make a minor difference in the level of HV but it's usually of little consequence. The final factor is the current rating of the field coil. Not enough them you run the risk that the coil overheat and burn out. Too much and I think it would lower the efficiency as the electromagnet wouldn't make as much magnetizum.
GL
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: 160
Threads: 42
Joined: Apr 2011
City: New Port Richey
State, Province, Country: Florida
Okay thanks.
Pepperoni
"It's Nice To Be Nice To The Nice"
Major Frank Burns Mash 4077th
![[-]](https://philcoradio.com/phorum/images/bootbb/collapse.png "[-]")
