Mystery Cards

[travis@cluracan.org (Ward C. Travis)]

I have two unidentified Apple ][ - style expansion cards that I ask you to
help me identify, if you would.

The larger one is clearly a hard disk controller of some kind. The artwork
on the board includes "S.V.A. APPLE DISK CONTROLLER" and "9�007�001", and
the components include a two-row fifty-pin IDC connector at the back edge,
a 4Mhz crystal, and a 40-pin DIP IC labelled "FD 1771-B01  7825 03", among
other chips.

The second one is really got me guessing - is this an old video card? Its
components include three trimming pots at the top of the card labelled B,
C, and W; and three-pin output above the ROM (a 2708) each pin labelled
V0, GND, or V1; and there's a 40-pin socket for a missing  chip in row G
of the card's socket listings. What's missing, and is this a video board?
The artwork says "MICRO WORKS DS-65" and there's a small low-wing plane on
the lower left corner of the component side. There's a large number of
passive components near the V0/GND/V1 outputs, and I'm guessing that 'B'
and 'C' stand for brightness and contrast...

Any pointers to information about these two boards would be appreciated.
If there's a FAQ or a home-page somewhere that stocks this kind of answer,
just aim me at it.

Thank you for reading this and thanks again if you can respond.

PS: I also have an Apple Synchronous Printer Card and need the pinouts for
the DB9 output on it, and if anyone can tell me more about the operation
of the Mountain Apple Clock Card, that'd be wonderful too :-) Web searches
all last night proved fruitless.

-- 
Ward C. Travis -- Cluracan.ORG -- Just collecting everything.