Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Philco 18 speaker info??
#1

Hello, I’m getting my philco 18 alive again. On the schematic it shows item#46 the output transformer as having a value of 5,300 ohms. Mine is measuring about 300 ohms. Thoughts? I did the 9 volt battery trick as per Wilbur and it does click and crackle. Any help would be great! Thank you!!
#2

I'm not sure where it says 5,300 ohm, but it does, then it probably refers to the reflected load impedance (the speaker voice coil as seen through the transformer). The DC resistance is about what you see, 300 ohm or close. It's good.

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.
#3

What schematic are you looking at? The one from N/A shows #48 as the output trans. and #45 as the input trans. But I don't see any resistance readings on this schematic. #46 shows as an resistor.
http://www.nostalgiaair.org/pagesbymodel...013149.pdf
#4

If you want to keep your speaker check simple unplug the speaker from the chassis and measure the resistance between the four pins any two should have less than abt 1500 ohms. If you get a much higher reading there's trouble ahead. There's two sizes of speakers used in the 18 the 18B uses an eight inch (K-17) or the 10 1/2 inch (H-13) used in the console model. Both were used in the 1936 116B early and late versions.

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
#5

Hello guys, thanks for the info. My speaker is the 10 1/2". I got the radio working by touching the lead of my multi-meter to the cathode pin... this will be another thread altogether. But at least it seems like my speaker is good!! Thanks again, Jeff
#6

What is the difference between an Philco 18 and a 18 code 124? The code 124 schematic shows no values, the 18 schematic from Riders volume 4, page 4-15 shows the value... thanks!




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco 42-390, code 121 speaker
#87 on the schematic.  This radio had a 8" Zenith  speaker attached to it when I got it. I do don't know the hist...Stevelog — 06:39 PM
Philco 60 Squealing
I'm pretty sure I now have the litz wire soldered. This did not make any difference. Back in April I rewound the seconda...dconant — 06:25 PM
Philco 38-7 Speaker
Just to make sure, you chose either 4 ohm into 5K or into 10K? (blk-org or blk-grn)morzh — 06:23 PM
Philco 38-7 Speaker
I have let this one sit because of other duties. Now I am back, and I have a couple of questions. I hooked up a Hammond ...tludka — 05:34 PM
Philco 42-390, code 121 speaker
>>A closer examination of the very small print schematic indicates that the speaker is a PM type. This shows a ...morzh — 05:18 PM
Philco 60 Squealing
Litz is typically tinned by simply rubbing it with the soldering iron tip while immersed in solder (and a bit of rosin f...morzh — 05:14 PM
Philco 6K7
The suppressor grid (if by G3 you mean the S) is usually at the Cathode potential, which in this caes is GND. I am not ...morzh — 05:10 PM
Philco 16B Parts
Thanks for the reply. Unfortunately the radio was removed before bidding was over so I didn't get a chance to bid.dconant — 04:10 PM
Philco 16B Parts
Hi Dan, Mike is correct, there's a lot of painted stuff on the chassis but it looks pretty good. The sm is all there,sp...Radioroslyn — 03:50 PM
1930s Stromberg-Carlson Tombstone Radio need help identifying model number
Hi Cap'n Clock, Unfortunately, I do not have this radio.  This is a shame because this should be a good performer.  2A...captainclock1988 — 03:43 PM

[-]
Who's Online
There are currently no members online.

>