1. The PHILCO Phorum
  2. Various and Sundry Categories
  3. Other Radios (Non-Philco)
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Linear Mode
Grunow 1291B antenna question
murf
Senior Member
****
Posts: 669
Threads: 145
Joined: Jun 2011
City: Elko,MN.
#1

04-13-2023, 01:17 PM
Hi guy's and gal's.
Have a Grunow Teledial model 1291B That I am having issues with the proper antenna hookup.
This chassis has 2 antenna terminals.
One is for antenna and the other is labeled Doublet.
I assume the doublet is for shortwave?
I know I have to have about 40 ft of single wire attached to the antenna terminal to get rid of motor boating on certain stations.
With no antenna, motor boating.
With 20 ft of single wire, still have some motor boating.
With 50 ft of single wire, no motor boating.
Tried tweeking the alignment with no change.
Anyone out there have one of these models?
If so, what are you using for an antenna?
P.S. this radio is re-capped and working well other than the antenna issue.
murf
Find
« Next Oldest | Next Newest »


Messages In This Thread
Grunow 1291B antenna question - by murf - 04-13-2023, 01:17 PM
RE: Grunow 1291B antenna question - by MrFixr55 - 04-13-2023, 08:25 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
PT-6 antenna connections
Thanks. I never realized that was a notch noted in the schematic as described. I’ll recheck my wiring.bridkarl — 08:13 PM
Cannot Adjust an IF Transformer’s cores
Thank you! I was quite new to the Phorum when I started this post, so I feel like it might be advantageous to publish a ...jrblasde — 08:07 PM
PT-6 antenna connections
Notice in the schematic the notch at the bottom of the antenna coil is between pins 3 & 4. Yes, pin 6 of the 7C6 is...RodB — 07:34 PM
bridkarl
I have two PT-6 chassis. On both there is a blue wire that runs from the above chassis transformer to pin 6 of 7C6. So t...bridkarl — 07:23 PM
Cannot Adjust an IF Transformer’s cores
Joseph, now you are an engineer!!RodB — 06:37 PM
PT-6 antenna connections
Hi, reading your explanation I can see the confusion. If you take it one connection at a time it should result in a desi...RodB — 06:34 PM
Cannot Adjust an IF Transformer’s cores
It works! I received the PCBs this morning in the mail, and put everything together. I reused the base from the original...jrblasde — 04:32 PM
PT-6 antenna connections
I seem to have lost my way on this PT-6. I see the antenna aerial transformer schematic - I’m reading pins 1 through ...bridkarl — 12:30 PM
40-150 General questions
Good thing you're a good electrician ... the pictures show a lot of rewiring in your future! Take care and BE HEALTHY!...GarySP — 11:52 AM
40-150 General questions
I think RobB has it right. It is a part number and looks like its stamped on the chassis and that wasn't something you ...klondike98 — 11:41 AM

[-]
Who's Online
There are currently 3587 online users. [Complete List]
» 4 Member(s) | 3583 Guest(s)
AvatarAvatarAvatarAvatar

>
  1. The PHILCO Phorum
  2. Various and Sundry Categories
  3. Other Radios (Non-Philco)