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

output transformer
#1

Hi,
I just acquired a Philco 20 deluxe. Can anybody tell me the layout of the speaker connector. The only one I found on line is the single ended not a push pull. I am trying to find if my output transformer is defective. Also did anybody recone the speaker of this radio?
#2

OK

Hold the plug cut side down pins toward yourself.

The rightmost top pin is one end of the field coil.
The leftmost top pin is the other end of the field coil AND CT of your transformer primary.
The bottom two pins are the ends of your primary (that go to plates).

So, measuring between the top tywo pins you will se about 3.1kOhm resistance.
measuring from the left top pin to either bottom pin you will see about 250-220 Ohm.
Measuring between the bottom pins with thus yield the sum of the above, about 460 Ohms.

If all measurements are like the above your field and the transformer are OK>




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco 16B Parts
The 16B's in the tombstone cabinet sport a 10 1/2" spkr vs the older cathedral sets which uses an 8". The p/p ...Radioroslyn — 12:58 AM
Philco 38-7 Oscillation
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 — 11:16 PM
Philco 38-7 Speaker
I know that when I first started working on this radio, I did not even have a speaker. Once I finally found one it was n...tludka — 11:00 PM
Philco 60 Squealing
I seem to remember eliminating a squeal by changing the IF frequency by a few KHz. Not that you should put too much tru...fenbach — 08:48 PM
Philco 42-390, code 121 speaker
These speakers pop up on eBay regularly, even if at bloated prices. Honestly, have not seen many parts on swapmeets.morzh — 08:38 PM
Philco 38-7 Speaker
The put-put is not like the speaker problem.morzh — 08:29 PM
Mission Bell Model 19A Car Radio
Hello everyone,  As mentioned in my last post I was going to see if the vibrator / rectifier section could be persuaded...Antipodal — 08:21 PM
Philco 60 Squealing
Wondering if I did it backwards. If a coil was wound backwards, the oscillator would not work at all. Old school...Chas — 07:23 PM
Philco 38-7 Speaker
4-ohm speaker. Black, Green leads.tludka — 07:00 PM
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

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

>