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

48-230 Antenna Loop
#21

This is what I would have a look at. The avc voltage as you tune across a station not WLW . Does it drop more - as the station gets stronger? Since you have a strong station near by it might be driving the avc voltage - all the time. Use a battery powered audio signal source to test the audio stages to determine if the gain is low and if the distortion is coming from the detector.
With #20 bad you had pretty much no screen grid voltage on the mixer and the IF amp. This would make the gain VERY low. Surprised it would do much of anything.

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


Messages In This Thread
48-230 Antenna Loop - by Daniel Bingamon - 11-13-2020, 09:24 PM
RE: 48-230 Antenna Loop - by Radioroslyn - 11-14-2020, 01:34 PM
RE: 48-230 Antenna Loop - by Daniel Bingamon - 11-14-2020, 07:11 PM
RE: 48-230 Antenna Loop - by Daniel Bingamon - 11-14-2020, 07:50 PM
RE: 48-230 Antenna Loop - by Radioroslyn - 11-15-2020, 12:27 AM
RE: 48-230 Antenna Loop - by Daniel Bingamon - 11-15-2020, 09:38 AM
RE: 48-230 Antenna Loop - by Daniel Bingamon - 11-15-2020, 10:06 AM
RE: 48-230 Antenna Loop - by RodB - 11-15-2020, 12:09 PM
RE: 48-230 Antenna Loop - by morzh - 11-15-2020, 12:30 PM
RE: 48-230 Antenna Loop - by Radioroslyn - 11-15-2020, 01:18 PM
RE: 48-230 Antenna Loop - by Daniel Bingamon - 11-15-2020, 02:25 PM
RE: 48-230 Antenna Loop - by RodB - 11-15-2020, 02:44 PM
RE: 48-230 Antenna Loop - by Daniel Bingamon - 11-24-2020, 09:54 PM
RE: 48-230 Antenna Loop - by Daniel Bingamon - 11-25-2020, 12:19 AM
RE: 48-230 Antenna Loop - by Daniel Bingamon - 11-27-2020, 08:04 PM
RE: 48-230 Antenna Loop - by klondike98 - 11-29-2020, 09:40 PM
RE: 48-230 Antenna Loop - by Daniel Bingamon - 11-29-2020, 10:30 PM
RE: 48-230 Antenna Loop - by Radioroslyn - 11-30-2020, 11:34 AM
RE: 48-230 Antenna Loop - by Daniel Bingamon - 11-30-2020, 09:08 PM
RE: 48-230 Antenna Loop - by Radioroslyn - 12-01-2020, 12:32 AM
RE: 48-230 Antenna Loop - by Daniel Bingamon - 12-02-2020, 09:34 PM
RE: 48-230 Antenna Loop - by Daniel Bingamon - 12-02-2020, 11:42 PM
RE: 48-230 Antenna Loop - by Radioroslyn - 12-02-2020, 11:50 PM
RE: 48-230 Antenna Loop - by Daniel Bingamon - 12-03-2020, 08:14 AM
RE: 48-230 Antenna Loop - by Daniel Bingamon - 12-03-2020, 08:31 PM
RE: 48-230 Antenna Loop - by Radioroslyn - 12-03-2020, 11:53 PM
RE: 48-230 Antenna Loop - by Daniel Bingamon - 12-04-2020, 08:03 AM
RE: 48-230 Antenna Loop - by Daniel Bingamon - 12-04-2020, 08:18 PM
RE: 48-230 Antenna Loop - by Daniel Bingamon - 12-06-2020, 06:23 PM
RE: 48-230 Antenna Loop - by Radioroslyn - 12-06-2020, 08:17 PM
48-230 Weak Signal - by Daniel Bingamon - 11-29-2020, 08:43 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
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
Electrolytic restuffing/internals
hello bridkarl, Well done ! Here is a Photo of the base of Philco capacitor that I cut open you can see how I glued th...radiorich — 08:14 PM
philco predicta
Hi CGL18, Here is a link for the schematic from the Early television Foundation: WARNING!! One side of the Chassis i...MrFixr55 — 08:09 PM
The list of my radio & TV collection!
Peter; I like Canadian General Electric sets, whilst the model numbers are often the same as their U.S General Electr...Arran — 05:44 PM
Electrolytic restuffing/internals
Did as suggested. Cut can with hacksaw, removed internals, attached new 8mf cap - with ample use of cardboard and elec...bridkarl — 03:36 PM

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

>