My System 5

My System 5 Photo

From left to right:

6502A CPU Board my replica
80x25 VDU Interface Board my replica
RGB to VGA Converter my design
Versatile Interface Board my replica
8K RAM + 8K ROM Board my replica
32K Dynamic RAM Board my replica
3 spare slots  
Floppy Disk Controller Board my replica
Dual 5.25" Floppy Disk Module (Vertical) my design fitted with a TEC FB-501 (40T SS) and TEAC FD-55GFR drive (80T DS):

 

The CPU Board is fitted with DOS 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 10-slot Backplane.  Power is provided by two switch mode PSU modules in the 1U space beneath the plug-in boards.

My System 5 Photo Rear

Card Frame Details

The Card Frame is 4U high, 84HP wide and 240mm deep (1U = 1¾" or 44.45mm, 1HP = 5.08mm).

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:

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