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

Grunow 835 question
#4

I have no sch for your model. Anyway.
To add to the above, poor reception on SW may sometimes stem from the fact that the first RF amp stage does nothing and you receive good AM stations using your second stage (detector-oscilaltor, for instrance) as an antenna. If this is the case, if you pull the first tube you will see that the reception did not change and the radio still plays.
This may show to the open RF output transformer for this first stage.

So, if you don't see any shorts etc, try to see the integrity of that coil.


Messages In This Thread
Grunow 835 question - by murf - 10-27-2012, 02:54 PM
RE: Grunow 835 question - by Steve Davis - 10-27-2012, 03:10 PM
RE: Grunow 835 question - by TA Forbes - 10-27-2012, 04:32 PM
RE: Grunow 835 question - by morzh - 10-27-2012, 04:40 PM
RE: Grunow 835 question - by Arran - 10-27-2012, 08:45 PM
RE: Grunow 835 question - by murf - 10-28-2012, 02:46 PM
RE: Grunow 835 question - by murf - 10-28-2012, 04:52 PM
RE: Grunow 835 question - by codefox1 - 10-28-2012, 06:58 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
1930s Stewart-Warner Tombstone Radio need help identifying model number
UPDATE: I was able to pick up a signal generator on the cheap (amazingly enough) on feebay and I did an IF alignment fol...captainclock1988 — 09:53 AM
Philco 91 Schematic
Hi Rod, The resistor connects to pin 4 and the ungrounded side of block 9. From pin 9 of the RF tube to one side of ...dconant — 09:34 AM
Just got a 49-1613 need to know...everything!
I just found your post. I have this exact same model, and have had it since 1985 when I was 15 years old! I performed a ...MuzzcoVW — 09:11 AM
B&K 1077B no video
Hello Tim, I would if it's a leaky Capacitor So are all 3 of those B- voltages low then ? Sincerely Richardradiorich — 01:55 AM
B&K 1077B no video
I found a schematic and think I have the problem traced down to the minus power supply. I have very low voltages that go...TV MAN — 12:41 AM
RCA 15X
I'd try replacing the bulb first and if that doesn't do it, then change the 35Z5 and see if the problem goes away.NostalgiaRadioTime — 12:28 AM
B&K 1077B no video
Hello Tim, I have that exact unit in my shop too plus a Sencore unit there are times I like one or other !!. Sincerely...radiorich — 11:07 PM
RCA 15X
Everthing goes at once, maybe it's the cold weather, I have had 2 dial strings break and no my little RCA is having dial...Paul Philco322 — 10:26 PM
Philco 91 Schematic
Hi Dan, I can't explain this specific resistor but I have seen the use of a switch to apply B+ voltage to screen gri...RodB — 09:36 PM
6TPZ and 5TPO Radio Help
I suspect it's been repaired before. And I suspect whoever repaired it, wanted to re-use old transistors' pin stubs in o...morzh — 09:24 PM

[-]
Who's Online
There are currently 10258 online users. [Complete List]
» 2 Member(s) | 10256 Guest(s)
AvatarAvatar

>