Dynamic Technology Limited SDA 2656

[Kid Squid]

Hello Chaps,
Just got a pile of these, and trying to figure out what they were actually used for. I think they've come out of a Radio / TV station....
got a Beyer TR/BV 37/001/081 transformer on every channel, seems like they're discrete line amps ???
Any info would be greatly appreciated,
Steve

 

[Kid Squid]

Been doing a little poking around, but still no info.
Would love a schematic of these.

Steve

 

[andre tchmil]

scored some of these too, they look quite nice . At the back I see a row of in and outputs .
Summing mixer ?

 

[Kid Squid]

Hi Andre,

Mine are still in storage, I havent gone any further with them, but I have the schematics here.

Drop me a mail and I'll send them over.
Best,
Steve