The Videomaster Olympic Home T.V. Game (model VM3-D) came just
after the Videomaster Rally and was an improved version
of the Videomaster Home T.V. Game MKIII.
Compared to the Videomaster Rally, it had
only two additional features: the possibility to invert the first player to add
a few more games, and an optional "wobble" effect on the second player to
increase the difficulty. When enabled, the second player oscillates slightly
verticaly. Scores were manual using two metal balls: each player used a group of fifteen moulded holes on the
system case to register his score. This game was also released in Sweden (at least, an advertisement exists),
and a german manual exists as well (although no german specimen has been found).
Technically, this game is interesting because it has been improved at least
The earliest version known used eleven TTL chips of the 74Cxx series (three
74C00N chips and eight 74C02N chips).
A second version had the eight 74C02N
chips replaced by CD4001E chips (their CMOS equivalents), which used less power than
the TTL chips, and operate on a wider
range of voltages, hence a longer use of the 9V battery. This change
required an additional jumper and two more resistors.
The last improvement was made to the plastic case and the box in 1976. The
first version came in a white carton box (originally closed with adhesive
tape, as pictured) with black and red text, and the case had a granular
plastic without numbers in the ball holes. The second version from 1976 came in a
color illustrated box and a mat plastic case with numbers moulded
into the ball
holes. The three front potentiometers (H, V and Speed) were replaced by
horizontal ones with knobs, which allowed finer adjustments.
First box with original adhesive tape mark over the 'D' letter.
Close-up: handle and mark of original adhesive tape closing the box before first use.
Earlier version with granular case and the two metal balls for scoring.
Inside: discrete components (11 chips), all hand assembled. Although the circuit
shows the place of the large 9V battery used in the Home T.V.
Game MKIII, the normal
9V battery is inserted at the right of the bottom case
and keeps in place by pressure.
Second version: nicer case, different ball holes, and three horizontal front
User Manual. Right: an early Kellog's promotion (click picture for larger view).
Kellog's picture courtesy of Adrian
The system could play six games (more by moving the hole like in Wall Game).
Click picture for larger view.
Sometimes around 1976, Videomaster Olympic had some success in Australia, where
it has been copied and renamed Videolympic. As can be seen on the pictures, the plastic case kept the
granularity of the original but was intelligently modified. It was made more
shiny, and illustrations replaced the scoring holes (it is believed that few people
really used the metal balls for scoring). The three switches were also
mounted on the circuit board, which was consequently slightly enlarged,
thus reducing the number of wires. The battery compartment can also be seen on
one picture and is same as the original (the battery is quite hard to insert,
but will hardly come off the case).
Videolympic pictures courtesy of
Click the pictures to view them in original size.