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

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

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
The list of my radio & TV collection!
Sorry, these are my old videos, so there are no English subtitles yet. RadioSvit — 06:00 AM
The list of my radio & TV collection!
Yes, MrFixr55. I agree with you, this Galicrafters is structurally very similar to the Zenith Transoceanic H500, as well...RadioSvit — 05:58 AM
The list of my radio & TV collection!
Hi Richard. I really like the Hickok, it is very convenient to use. I have another tube tester - the Soviet L1-3. It is ...RadioSvit — 05:27 AM
The list of my radio & TV collection!
Arran. I completely agree with you. I also noticed that the Canadian consoles General Electric, RCA and De Forest Crosle...RadioSvit — 05:11 AM
Electrolytic restuffing/internals
I don’t have a vise so I had to hold it in my hand. Not optimal but covered up by the hvac tape in the end. I have a few...bridkarl — 11:52 PM
Electrolytic restuffing/internals
Bridkarl A question. For a hacksaw the cut looks a little...jagged. Why?morzh — 11:45 PM
The list of my radio & TV collection!
As usual, an interesting post from you, Peter. This seems to be similar to the RCA 3-BX-671 and the Zenith Transoceanic...MrFixr55 — 11:41 PM
The list of my radio & TV collection!
Hello Peter, Thank you for sharing your new video and looks like your weather is nice their too. it was like 25 Cel...radiorich — 11:05 PM
Electrolytic restuffing/internals
hello bridkarl, I will post some better photos ! Sincerely Richardradiorich — 10:14 PM
Electrolytic restuffing/internals
I just taped the two pieces of the cap together, but I can see your method is better. I just held the lead in with solde...bridkarl — 08:18 PM

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

>