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

42-350 tuning condenser. Never worked on this.
#1

This tuning condenser has 4 gangs. But 2 are single blade (I would imagine SW and FM?). I didn't mark them when I removed them, and I'm lost as to proper hook-up.

I know the tuner is #14. One tab is connected to pin 2 of #7 (the FM oscill. trans.), one is connected to pin 7 of #7, one to C-3/C-4, and one to B-4.

But for the life of me, I can't figure out which! Can someone help?

Thanks,

Pat  

[Image: http://i1367.photobucket.com/albums/r796...ozv5t3.jpg]

[Image: http://i1367.photobucket.com/albums/r796...nzyvg3.jpg]
#2

>(I would imagine SW and FM?)
For the FM section.

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
#3

According to the schematic, the FM coils are directly across the single-section parts of the tuning capacitor and AM and SW share the other part.  The bandswitch positions appear to be pushbutton AM tuning (where the switch is in the schematic), AM, SW and FM.  Pushbutton tuning only uses the rows of tuning capacitors on the bottom.  AM and SW use the large parts of the tuning cap and FM uses the small part.
#4

Now I see it. Thanks.
#5

(10-30-2018, 05:53 PM)Radioroslyn Wrote:  >(I would imagine SW and FM?)
For the FM section.

I see it now. Would have been nice if Philco would have indicated that rather than just expecting everyone to know it.
#6

It's pretty much common sense the smaller amount of capacitance the higher the frequency.

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
#7

(11-01-2018, 06:14 AM)Radioroslyn Wrote:  It's pretty much common sense the smaller amount of capacitance the higher the frequency.

It's common sense IF you can remember everything you've learned about electronics. I've forgotton more than I ever knew.
#8

[Image: http://philcoradio.com/phorum/images/smi...on_lol.gif]

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
#9

Philco, in its time, never expected anyone other than trained technicians to tend to their radios. This is why they never put down any details like this one.

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.




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco 91 Speaker Replacement
I can't remember, but there was a particular product for loosening glue on the more modern "spiders", used pos...MrFixr55 — 09:43 PM
Philco 91 Speaker Replacement
The spider is glued on the cone and so is the voice coil. I think you can use a cotton swab dipped in acetone and carefu...RodB — 02:42 PM
Restoring Philco 37-604C
Yes I saw that. If I knew, I'd probably try to arrange for getting it myself. But I have just got one. Which does not m...morzh — 01:44 PM
Philco 38-2 Automatic Tuning
When you push the lever, you are supposed to rotate the disk to the desired station. Then the magnetic tuning will acqu...morzh — 01:42 PM
Philco 38-2 Automatic Tuning
I figure out the muting from another picture that helped. Now I need to know how the automatic tuning works. When I push...dconant — 12:11 PM
Philco 91 Speaker Replacement
How would I go about removing the spider from the cone?dconant — 12:04 PM
Philco 38-2 Automatic Tuning
Hello, I am having trouble getting my automatic tuning to stay unmuted. If I play with the tuning handle I can get it to...dconant — 10:51 AM
Does anyone make photofinish replacements?
Here’s the link to the DIY photofinish section of our site: klondike98 — 09:46 AM
Delco car radio Peko vibrator converstion issues
Hi Richard, Thx for posting the schematic.  As I remember as a kid, these were great performers for the time, likely...MrFixr55 — 08:56 AM
Delco car radio Peko vibrator converstion issues
hello mr Fixr, The Electro  Powersupply that I am powering the radio with has a huge choke plus a 10,000ufd electrolyti...radiorich — 10:58 PM

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

>