[murf]

Picked up another chassis and speaker last week from a forum member who just happened to have one he was not going to us, so we made a deal.
His is the Colonial 4486 chassis where as mine is the SW 4586 chassis.
I went through it this week and it now plays nice.
This one had a bum power/volume switch and needed a few tubes and a set of caps.
Got a donor switch from a friend and installed it last weekend.
This one has kind of a touchy area down on the low volume end. Tried cleaning it with some switch cleaner, but it did not help much.
Mounted in a very busy corner of the chassis which makes it quite a job to replace.
Might just live with it for now.
Have a question about the doublet antenna hookup on this chassis.
What would be the best hookup for this system.
If I put a single wire on the dbl screw, I get much stronger reception as compared to the ant screw.
There is also a ground screw below the antenna hookups.
2 single wires strung in opposite directions?
Does not have the optional wave trap antenna that was available from Sears for a buck.
Maybe I can get this one put in the cabinet this weekend and concentrate on the other chassis for a while.
Getting nice outside now which makes it harder to get the inside work done.
murf

[Radioroslyn]

Hi Murf,
>What would be the best hookup for this system.
The short answer is which ever hookup plays the loudest.
The long answer is that a proper doublet ant will work much better than a single wire. Signals will be stronger and background noise will be less. It needs to be cut to the proper length (for the bcb abt 300' total) and connected w/300 or 450 ohm feed line. The old skool flat tv ant wire works well as it's 300 ohm, can be used for the feed line.

>Does not have the optional wave trap antenna that was available from Sears for a buck.
Don't need it unless you need to minimize interference from a strong nearby station.


GL

[murf]

Don't think 300 ft total is an option.
That would be 150 ft from the center tap both directions.
Have an old double wire (DOUBLEX)Antenna which probably feeds about 4 ft in 2 directions from the center tap.
Problem with that is that it should be mounted to a flat vertical wall or similar.
Single wire has static in the backround
murf

[Radioroslyn]

Actually the length of a full wave doublet is 1148' I roughed a 1/4 wave @ 300' (287'). Your four footer is going to be good for the fmbcb.

[murf]

Wrapped it up.
Seems to be working fine now.
Onto other things.
Guy gave me a Stewart Warner R-137-A.
Will have a couple questions I am sure.
murf