Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12, 2025) x

Thread Closed

Model 14 Sensitivity
#3

The stations are in the correct location on the dial (at least relatively close) My favorite station is at 1300khz and I have that exact.  I also used the signal generator to set 600khz.  In between and beyond can be off a bit, but not too bad.  When setting the 600khz, the signal generator was set up with nothing more than a wire as an antenna and the signal was picked up by the radio via a short wire on the antenna clip.  IF was set at exactly 175 khz as required.

The primary of the antenna coil (the part that is on the outside of the form) and the RF amp coil were open.  The 38 gauge wire had disintegrated in several locations so I had to rewind them.  I understand this is not an uncommon phenomenon on Philco radios.  I was as careful as I know how in counting the windings and setting the new wire in the same location as neatly as possible. Is it possible that an error in the winding of these coils could cause the situation?  Understand that stations do come in down there, they are just noticeably weaker than on the upper end of the dial.


Messages In This Thread
Model 14 Sensitivity - by rfeenstra - 11-25-2017, 01:34 PM
RE: Model 14 Sensitivity - by morzh - 11-25-2017, 02:10 PM
RE: Model 14 Sensitivity - by rfeenstra - 11-25-2017, 03:38 PM
RE: Model 14 Sensitivity - by morzh - 11-25-2017, 04:24 PM
RE: Model 14 Sensitivity - by rfeenstra - 11-25-2017, 06:47 PM
RE: Model 14 Sensitivity - by morzh - 11-25-2017, 09:14 PM
RE: Model 14 Sensitivity - by rfeenstra - 11-25-2017, 09:53 PM
RE: Model 14 Sensitivity - by Steve Davis - 11-26-2017, 12:11 AM
RE: Model 14 Sensitivity - by rfeenstra - 11-26-2017, 01:37 AM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco 71 Code 125
Hello,  I am in need of a schematic for this radio. Mine has the three separate circular tube shields and a shadow me...dconant — 08:06 AM
Stromberg Carlson 1500 Squeal
And life just keeps getting more complicated.dconant — 07:57 AM
54C Complete Teardown/Rebuild
Hello Roy, here is this one sincerely Richardradiorich — 12:45 AM
54C Complete Teardown/Rebuild
Richard, Had grabbed it already but thank you just the same.  I find myself wanting to find some way to block out the...glyphmon — 12:03 AM
54C Complete Teardown/Rebuild
Hello roy, here is a link to the schematic . Sincerely Richardradiorich — 11:54 PM
54C Complete Teardown/Rebuild
Richard, The Silvertone 2014 also is a transformerless set, so I am incorporating a 1:1 600 ohm audio isolation transfo...glyphmon — 11:37 PM
Preliminary work on wife's Silvertone 2014
Did an alignment today which was interesting.  IF alignment went great, almost all was already spot-on.  Adjusting on th...glyphmon — 11:35 PM
54C Complete Teardown/Rebuild
The main problem with adding a Bluetooth input is that this set lacks a traditional power transformer to isolate it from...radiorich — 11:19 PM
54C Cabinet Refinish
I started stripping this cabinet before it got super chilly out because I knew I wasn't going to be able to work on ...glyphmon — 11:18 PM
54C Complete Teardown/Rebuild
While I'm waiting to wrap up the final steps on my wife's Silvertone 2014, I started disassembly on the next project.  O...glyphmon — 11:07 PM

[-]
Who's Online
There are currently 1925 online users. [Complete List]
» 1 Member(s) | 1924 Guest(s)
Avatar

>