Apple ][ boards (mostly

[Tony Duell]

Sellam mentioned that Apple ][ Comms card the other day... Thinking I 
should have one, I went digging in the depths of my workshop and found a 
box of mostly Apple ][ cards. I am not really an Apple person, so perhaps 
somebody sould tell me what I've found... All are Apple ][ plug-in cards 
unless I state otherwise.

Wildport Ltd 6522 VIA card. Contains a 6522 (Duh..) and a '04 only. Has a 
lenght of 26 way ribbon cable connected by a permanent transition 
connector, other end unterminated. Probably a user I/O card.

MTL APC.1.1 (that's in the PCB etc, no other identification). Cotnains 
6821, 6850, 1488, 1489, '04, 2-off '151, and a 4060. Also a 2.4576 MHz 
crystal. Ther's a 20 pin header with nothing plugged into it, and a 10 
pin SIL header with a cable ending in a DB25-P connector. Obviously a 
serial card, the  4060 divides down the Xtal to give the baud clocks, 
these are selected by the '151s to give the Tx nad Rx clocks to the 6850. 
>From a glance at the board, it would appear one port of the 6821 goes to 
the 20 pin header, the other controls the 151s (baud selection). Note 
there's no firmware ROM on this board.

Another MTL APC.1.1 

Apple Super Serial Card II.6551 + 2316 + TTL + RS232 drivers. I think I 
recognise this :-)

CCS Asynchornous Serial Interface Assy No 07710-0001A. Another RS232 
card. Containss 6850, 75150, 75154 (RS232 driver and receiver), 8304, 2 
PROMs, '09, '136, '03, 4702 (baud rate generator). 4 position DIP switch 
marked 'Baud Rate'. 26 pin header, presumably for an RS232 cable.

Epson APL Board Unit G479501000-0. Nothing to do with the language, I 
think, just an Epson printer interface. Contains a 2708 EPROM + TTL. 16 
pin header, presumably parallel printer interface.

Wesper Microsystems Wizard IPI. Assy 80003601. Looks to be another 
printer interface. has an EPORM la=belled EPSON/G10X + TTL

Sync Printer Inerface Card. Apple. TTL + 2 off 2112 RAM + ROM. Has a DE9 
connector at the front edge. I think this is a Silentype interface.

Mountain Computer ROMWRITERTTL + a couple of 555 timers + a 24 pin ZIF 
socket + discretes. Clearly an EPROM programmer.

Apple/PC link interface. 2716 EPROM + TTL + buffers + M58725 (?). One 20 
pin header near back of card. No idea!

Advanced Text Systems P.001 6520 + a couple of '16s + space for more 
buffers. Had a bit of ribbon cable soldered to it, with a DB25-P on the 
end. No idea!

Another Mountain Computer ROMWRITER

MEMOSOFT Made In France. Contains 6850 + TTL. Also 3486 and 3487 
(buffers?) never soldered in + space for passives and a 2716 EPROM. 6 
solder pins at the front of the board, seem to go to the buffers. Maybe 
some kind of network card?

ICE LTD Apple Cold Boot Adapter. EPROM + 6116 RAM + TTL. One 26 pin 
header that might go to ...

P-DJ2-301-B Not an Apple card, this looks to be a hard disk controller. 
26 pin header at one end, 34 pin + 2 off 20 pin at ther other, and a disk 
drive like power connector. Z80A + EPROM + 2 off 2114 + TTL + 
SCX6225NCM/V5 KONAN (what the heck is that?) + 8465 (data separator IIRC)

PROG RWP 8255 + EPROM + 78S40 (SMPSU chip) + '158 + 28 pin ZIF socket. 
Another EPROM programmer board.

ICE Multiplexor Host Adaptor 2716 + 6116 + TTL. One 20 pin header

RML PIP card (nothing to do iwth the Apple ][). A 380Z board with 3 off 
Z80 PIO and a Z80 CTC + TTL on it. 50 pin RML 380Z bus header connector. 
Prototyping area.

2 off Videx 80 column (?) cards. Cotnain 46505 (CRT controller, 4 off 
2114 RAM, 2 off EPROM + socket for another EPROM (char gen and 
firmware?), TTL

Buffered Grappler+ (C) Orange Micro. 64K RAM (8 off 4864) + EPROM + TTL + 
a 40 pin chip (microcontroller?). 26 pin header (printer interface). Is 
this a printer buffer card?

Microsoft Z80 card. Z80 + ROM + TTL. I know what this is....

Apple Clock Board. Maybe home-made (PCB is not plated-through). EPROM + 
8253 + TTL. No external connections.

Apple Parallel Interrupt Type 2. Looks to be the same origin as the last 
board.. EPROM + TTL. 10 pin header linked to a DA15 plug

2 off Communication Board. These aapear to the board Sellam was 
mentioning. 6850 + TTL + P2 PROM + 8304.

2 off Apple Parallel Printer Interface. TTL + P1 PROM. 20 pin external 
connector. I found the manual for this, so I know what it is (it's a 
centronincs-;like interface, the odd thing being that the busy line is an 
address input to the firmware PROM. The stnadard firmware goes into a 
loop waiting for the printer to go ready, when it does, the intructions 
read by the Apple are not the jump-round-the-loop, so it goes on and 
sends a characer).

Watford Electronics 1770 module for the BBC micro (nothing to do with the 
Apple)

Homebrew lightpen on stripboard with a 16 pin header connector. 
Presumably for the Apple ][ game port

Wattford Electronics Sideways ZIF socket. PCB with a 28 pin ZIF socket 
and some resistor packs linked by ribbon cable to a 28 pin header. 
Presumably to fit in the 'ashtray' on a BBC micro to allow easy ROM 
swaping 

2 of 'WORKSTATION' EPROMs, (C) University of Sussex. Probably for the BBC 
micro. Any ideas?

A few more Beeb-related chips (Torch Z80 pack EPROMs, 8271, etc)

Pracitcal Peripherals PROCLOCK. 6821 + MSM5382 (Real time clock chip) + 
EPROM + TTL. Oh, and a Lithium battery. Obvious what this is...

Disk ][ Interface card. And yes, I know what it is...

Heuristics 20A-1. TTL + 2 quad op-amps  + 2 quad comparators + 2708. 3.5mm 
jcak socket. I think this might be a speech input card...

Mountain Hardware Supertalker. TTL + PROM + 3418 _ 2 quad op-amps + LM380 
audio amplifier. 3.5mm jack socket 'microphone input', 2.5mm jack socket 
'speaker output). Speech I/O?

2 grotty dynamic microphones, probably for the last 2 card.

Any thoughts?

-tony