Ray Jefferson 6150 ADF (Automatic Direction Finder) - Any possibility to find a user manual?

[CrazyFin]

I recently got hold of a Ray Jefferson 6150 ADF in what I can see an almost unused condition.

I am wondering if anyone here is sitting on a copy of the user manual or if anyone knows where to find a digital copy?

I have searched all over the web and in many other forums and I can only find a Youtube-video showing an example of its use.

 

[RMason]

I recently got hold of a Ray Jefferson 6150 ADF in what I can see an almost unused condition.

I am wondering if anyone here is sitting on a copy of the user manual or if anyone knows where to find a digital copy?

I have searched all over the web and in many other forums and I can only find a Youtube-video showing an example of its use.

I found a user manual for the 680 here. Maybe it is similar to the 6150?

Bama Manual Archive

 

[CrazyFin]

@RMason: Thanks!

I totally forgot to check the BAMA archives.
The 680 model does indeed look pretty similar so I'll have a look in the 680 manual to start with.

 

[spongella]

I had a few RDFs in the past. The large rotatable antennas are great for AM broadcast band reception if the radio includes that band.

 

[Ubbe]

It doesn't seem to be much options to select from. Just tune to a station and hold in the button on the top to start the rotation of the antenna and it will find the null and the direction to the transmitter. All other buttons are what you will find on any standard shortwave receiver, You have a AM/SSB/RDF selector and bandselection and tuning. What seems to be the problem with it? It's from the 70's so maybe some capacitors have dried out and need to be replaced.

/Ubbe

 

[CrazyFin]

@Ubbe: (Hello fellow Swedish member. I am located in Sthlm too. 😁👍)

That is exactly the Youtube-video I was referring to! 👍

I also found the following text at radio direction finders

"I couldn't find a manual on this unit, so it took me awhile to figure out it's operation. This is because the "verify" button apparently has more than one function, and sensitivity of the rotating antenna is adjusted by an unmarked knob in the battery compartment. The combination of these settings meant I had to play with the radio and all variations before I got it running properly.

The antenna is not manually adjustable.... but when you have it set to "radio", you can move adjust the ant. position with the "verify" button. But when in ADF mode, the verify is used to differentiate between the false and true "null". If the sensitivity knob is incorrectly set, however, the antenna just rotates endlessly, or not at all."

I have not (yet) tested the 6150 I got in a package deal with other CB radios, antennas and a lot of other stuff.
I was just curious to see if there was anyone sitting on the manual and even schematics. Always good to have these included when and if I sell this on the Swedish auction site Tradera.

 

[Ubbe]

As a collectible device its value are zero and for usability its also zero. Those AM ADF's are all made in the 70's and early 80's as in the middle of the 80's the GPS system where available for civilian use. They made too many of these to make them rare and have a value to those who collect vintage electronics. Maybe you can use it to listen to Radio Carolina and those kind of weak signal stations. But using an external longwire antenna would probably produce a much better result. And of course most AM stations are on the web with a perfect sound quality.

I will keep an eye on Tradera, owned by Ebay, to see if you have any other interesting radio related things you want to get rid off.

/Ubbe