From left to right:
6502A CPU Board | my replica with DOS80A and NFS3.40 in 2764 EPROM |
80x25 VDU Interface Board | my replica with FONT A fitted |
RGB to VGA Converter | my design based on GBS8200 |
Versatile Interface Board | my replica |
32K Dynamic RAM Board | my replica with 32K DRAM |
Econet Node Board | my replica (ID15) |
3 spare slots | |
Floppy Disk Controller Board | my replica |
Dual 5.25" Floppy Disk Module (Vertical) | my design with a GOTEK (0/2) and TEAC FD-55GFR 80T DS drive (1/3) |
The CPU Board is fitted with DOS40B in a 2532 EPROM, the memory board is fitted with BASIC and FP Extension in 2532 EPROMs. The memory board provides 24k of memory from 2000 to 7FFF and 8K from C000 to DFFF.
All fitted in a Vero Card Frame with my 10-slot Backplane. Power is provided by two switch mode PSU modules in the 1U space beneath the plug-in boards.
Card Frame Details
Part |
Dimensions |
Quantity |
Original Vero KM6 Part No. |
VeroTec (KM6 II)Part No. |
End Plate (Flat) |
4U x 240mm |
2 |
173-24151C |
950-202618 |
End Plate Front Angle |
4U |
2 |
173-24149E |
950-202616 |
Upper Front Tie Bar |
84HP |
1 |
173-12552K |
950-202644 |
Upper Front Tie Bar |
50HP |
1+ |
|
|
Lower Front Tie Bar |
50HP |
1+ |
|
|
Lower Front Tie Bar |
84HP |
1 |
173-12551B |
950-202643 |
Upper Rear Connector Mounting Rail |
84HP |
1 |
173-13018E |
950-229781 |
Lower Rear Connector Mounting Rail |
50HP |
1* |
173-12701A |
950-229781 |
Lower Rear Tie Bar |
84HP |
1 |
173-12701A |
950-229781 |
Divider Plate |
4U |
1+ |
|
|
Front Location Moulding (left) |
|
2 |
173-12557F |
not req’d |
Front Location Moulding (right) |
|
2 |
173-12557F |
not req’d |
Rear Location Moulding (left) |
|
1 |
173-12558C |
not req’d |
Rear Location Moulding (right) |
|
1 |
173-12558C |
not req’d |
Divider Plate Moulding |
|
1+ |
|
|
Tapped Strip |
84HP |
2 |
173-12704C |
950-202001 |
Tapped Strip |
50HP |
2* |
173-12704C |
950-202001 |
End Fixing Screws |
M4 x 15mm |
12 |
173-12529A (100) |
950-202734 (100) |
Card Guide |
160mm |
20 |
173-12553G (10) |
950-232662 (10) |
Module Guide |
160mm |
4 |
173-12554D (10) |
950-232664 (10) |
Front Panel |
5HP x 3U |
6 |
174-12903K |
957-235349 |
Front Panel |
50HP x 1U |
1 |
||
Card Mounting Bracket |
plastic |
12 |
173-12525B (2) |
173-232669 (10) |
Module |
34HP x 4U (no handle) |
1# |
||
Floppy Drive |
5.25” Half Height |
2 |
|
|
Power Cable |
4-pin IDE 50cm |
1 |
|
|
Power Cable |
4-pin IDE splitter |
1 |
|
|
PSU |
|
1 |
|
|
(many of the parts have to be custom made)
+ fabricated from 6U/60HP divider kit Part No. 950-202607
* cut down from 84HP part
# fabricated from 42HP 6U module, Part No. 957-236398
Power Supply Details
Power is provided by two RS switch mode modules:
SRS 25-5: 5v@7A (RS 161-8272)
SRS 50-12: 12V@4.2A (RS 161-8279)