From left to right:
| 10HP module with PSU | my design |
| 6502A CPU Board | my replica |
| 80x25 VDU Interface Board | my replica |
| 8K RAM + 8K ROM Board | my replica |
| 3 spare slots | |
| 2HP blanking panel |
The CPU is fitted with COS in a 2532 EPROM, the memory board is fitted with BASIC and FP Extension in 2532 EPROMs.
All fitted in a Vero Card Frame with my unbuffered 10-slot Backplane. Power is provided by a 5V switch mode PSU module.
Card Frame Details
The Card Frame is 3U high, 42HP wide and 240mm deep (1U = 1¾" or 44.45mm, 1HP = 5.08mm).
|
Part |
Dimensions |
Quantity |
VeroTec KM6-II Equivalent Part No. |
|
End Plate |
3U x 240mm |
2 |
|
|
End Plate Front Angle |
3U |
2 |
950-232632 |
|
Upper Front Tie Bar |
42HP |
1 |
950-202736 |
|
Lower Front Tie Bar |
42HP |
1 |
950-202735 |
|
Rear Connector Mounting Rail |
42HP |
2 |
not available * |
|
Tapped Strip |
42HP |
|
950-202739 |
|
|
160mm |
12 |
|
|
Module Guide |
160mm |
4 |
|
|
Front Panel |
|
|
|
|
Front Panel |
3U x 2HP |
1 |
not available + |
|
Screws |
M4 x 12mm |
10 |
* a 42HP DIN41612 Connector Mounting Rear Tie Bar doesn't seem to be available from Verotec, you could cut an 84HP tie bar in half (950-229781) ? Alternatively Backplane Mounting Rear Tie Bars are available in 42HP (950-202737) which can be used with a DIN41612 Connector Mounting Frame (Verotec 950-34246), a pair are required of course (I had a complete 42HP card frame which has Backplane Tie Bars with the Mounting Frames attached).
+ you can't get a 2HP wide front panel, mine was cut down from a piece of front panel left over from something else.
Power Supply Details
The power supply is built inside a fully enclosed 4-rail, 10HP wide, 3U high, 160mm deep module (Verotec 957-236386) fitted with 10HP top and bottom screens (Verotec 174-12965) and right hand screen (Verotec 174-13035 or 13021 ?). Mine was made up from parts that I have had since the 80's so they are not necessarily quite the same as the new items.
I have fitted a 100 x 160mm aluminium panel (i.e. Eurocard size) in the left hand guide slots to attach the power supply module to. The power supply is a 5V 25VA switch mode from RS (161-8213). I have fitted a small mains on/off rocker switch to the front panel, the power supply connects to the card frame with a H15 plug and socket.
