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

Philco Model 37-61 Short Wave Reception
#1

I just successfully completed the electronic refurb of a model 37-61. This is an AM/SW receiver with a 20' wire connected to terminal 1 and another 20' wire connected to terminal 2. The ground link on terminal 3 is not connected to terminal 2 or 4. During the alignment using a signal generator, the signal strength/output was almost the same for both bands. But, the actual signal reception is quite different. The AM stations in the Los Angeles area are received with plenty of gain/volume. The AM section performs very well. The short wave section appears to be performing properly too based upon the signal generator readings but does a very poor job of picking up signals on the SW band which is 5.7 to 18.2 Mhz. At full volume I can tune the entire SW dial and pick up dozens of very weak carriers but too weak to be useable. Night time reception was the same. Question: Is this the best performance for this model or is there a problem that I have yet to uncover? Looking forward to your suggestions. Thanks.
#2

This model is not a DX type sw receiver, so it will need a good ground and at least 20-30 foot long wire antenna (preferably outdoors and high up as possible) for reasonable reception on SW. Also, back then SW stations were booming out with higher power and targeting the US more frequently. Also SW reception generaly right now ise not the greatest anyway. A ground and an antenna with as much wire as you can string up will help the best.

Chuck
#3

Thank you for your advice. The one thing I have not done is ground the radio. I will try that to see if I get any improvement.




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
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
Delco car radio Peko vibrator converstion issues
How about putting a choke in the power supply? The big cap was likely an attempt to stabilize the DC. Kids who cre...MrFixr55 — 09:19 PM

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

>