Sir NoClue . . . . . . . . .
. . . . . .but now . . . . . with a few more clues .
Reading Remonco International also . . . . on this end . . . .NOT to be confused with RONCO..
Two power supplies feeding two banks of 15 of these units.
The boards . . .possibly being video/data activity monitors OR switchers.
The 8 pin I.C.'s use of the HF ferrite inductors, hints of this design , as well as 100 ohm loads.
Mere DB 9 interfacing being indicative of serial info.
The WHOLE unit, possibly being a test bed for environmental / thermal testing, to be placed into
a chamber for the process ,
Circa 1997 design activity date, with some acquired parts being as old as 1994.
Only one readable IC, being a dual 74123, configured as Schmidt triggers.
Central axial leaded filter capacitor with a lightly heat sinked 3 term regulator . . .U4 . . . to its side.
If no sharper pic of the board components is being possible, can you pass us the IC numbers ?
Mainly . . . . . . to ascertain their frequency/bandpass characteristics.
The top of board light reflection makes it hard, but initially see JP at the bottom right corner of the board
isn't the right top corner beng its companion . . . . BUT . . . . with a jumper clip being installed on it ?
That's about all I can see.
Otherwise, it looks like a good cluster of boards to harvest parts from.
With the stand alone power supplies being worthy of the whole bids value.
BTW what are their output voltage and current specs ?
Lambdas ?
Thasssssit . . . .
73's de Edd