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

Changed caps in a 40-190
#1

Soooo I finally got around to replacing the caps in my 40-190. Got orange dips from just radios.com. A lot of the stations sound great (850,1420,1100) and more. But on some I always get a low static even on some of the higher stations. Could it need a resistor replacement or just bad signal since I live on the ground floor in a condo?

AJ
#2

Easy to check for interference. Take it outside and try it. Plug it into a different circuit, etc. If that doesn't fix it, make sure the tuning cap is clean. Dust between the plates can cause static. Resistors? I always check them when I am recapping. If you didn't, you can be sure that at least some of them have drifted in 73 years. I don't know if that would cause static though...

The artist formerly known as Puhpow! 8)
#3

Disconnect the antenna loop and turn up the volume. If the static is still heard when no stations are being received, then most likely it is being internally generated.

If you only hear the interference when the antenna is connected then it probably is from an external source. As PuhPow mentioned try taking it outside as far from the house or other wiring as possible and see if it is reduced.

A bad resistor or cap can make static noises, but the noise will be present also with the antenna disconnected and no signal being received.




Users browsing this thread: 2 Guest(s)
[-]
Recent Posts
American Bosch Model 802 auto radio
Hello again;   I found a model 838 car radio on Nostalgia Air under United American Bosch, http://www.nostalgiaair.org/...Arran — 09:32 PM
New Philco Repair Bench
Morzh is correct. The repair bench on our website is an archived image of chuck’s original site. He no longer provides s...klondike98 — 05:32 PM
Made mistake & did not label connection
Excellent information. It is all starting to come together now and your explanation really helped since I noticed that ...georgetownjohn — 04:39 PM
Made mistake & did not label connection
Hi John, I don't have this radio, but I can supply some info: Based on your pic, pins 7,8 and 1 are used together, go...MrFixr55 — 02:02 PM
New Philco Repair Bench
As far as I know, the Repairbench does not work, and has not been working in a while. Chuck (we had that campaign looki...morzh — 01:33 PM
Radio city products 664 schematic request
Need a schematic or manual for the 664. The 663 may be similar.daveone23 — 12:38 PM
New Philco Repair Bench
Thanks Gary.dconant — 12:16 PM
New Philco Repair Bench
I tried accessing the site through our library and got the same response. It's reported to our tech gurus. GaryGarySP — 11:50 AM
New Philco Repair Bench
I am sure this is the archive, and not the Chuck's site.morzh — 09:50 PM
Made mistake & did not label connection
It's not like we are good friends with that wire and can tell it from other ptetty identical looking wires. Why'n't you...morzh — 09:49 PM

[-]
Who's Online
There are currently 3128 online users. [Complete List]
» 1 Member(s) | 3127 Guest(s)
Avatar

>