D & A Dul-Comm for Linears? Ever see this one?

[Checkerboard]

For D & A tube amp aficionados- I own one of the D & A "Dul-Comm" boxes- it appears to let two linears connect to one antenna. I have no doc, so would appreciate anyone letting me know what this box does! Thanks, Checkerboard (I can try to post a picture if it would help...)

 

[kswitchdr]

I have owned lots of D & A but never heard of this. A picture would be helpful,at least to me.

 

[Toll_Free]

For D & A tube amp aficionados- I own one of the D & A "Dul-Comm" boxes- it appears to let two linears connect to one antenna. I have no doc, so would appreciate anyone letting me know what this box does! Thanks, Checkerboard (I can try to post a picture if it would help...)

I'd bet it's either a diplexer, or a remote switch for seperate tx and rx.


--Toll_Free

 

[Checkerboard]

Yeah, that's what I figured- a diplexer- but it'd have to be pretty well-engineered to isolate two hi-powered linears in such a small box. I'll get around to posting a picture hopefully tonight. I plan on selling it as I have no use for it. Maybe some D & A collector will care ...

 

[Farm Boy]

Yeah, that's what I figured- a diplexer- but it'd have to be pretty well-engineered to isolate two hi-powered linears in such a small box. I'll get around to posting a picture hopefully tonight. I plan on selling it as I have no use for it. Maybe some D & A collector will care ...

I know of a gentleman out here in Central California who back in the seventies used to run a D&A built device that combined the output of his two (2) Phantom 500's into one feedline. He also had a similar one splitting the inputs.
His station consisted of a Browning Golden Eagle Mark II into a D&A modified Hawk modulator/driver driving the input splitter, into the pair of Phantoms, their output into the combiner then into one feedline feeding a pair of stacked 6 element Hornets at 120'. Man oh man, could he talk!