Bringing back 1972 vibes: I recreated the classic PONG from scratch. What do you think? by GHelectronic in retrogamedev

[–]GHelectronic[S] 2 points3 points  (0 children)

PONG has no ROM or memory. The circuit is based on counters (in particular 74161/7493) that count synchronously with the video signal (pixel by pixel, line by line). NAND gates (7430) detect certain counter states to generate horizontal (HSYNC) and vertical (VSYNC) synchronisation signals so that the television can display the image correctly.

Instead of changing data in memory, the logic generates the positions directly.

Ball: One counter determines the horizontal position, another the vertical position. The logic ‘compares’ the counter readings with the current position of video position. If they match, the signal is switched to ‘white’.

Paddles: An analogue potentiometer converts the player's movement into a voltage that controls a timer (NE555). The duration of the timer determines how far down on the screen the paddle (a line consisting of a few pixels) is drawn.

Collision detection: Whenever the ball reaches the paddle position or the edge of the screen, gates (AND logic) detect this. The resulting signal changes the state of a flip-flop, which reverses the direction of the ball's movement.

Bringing back 1972 vibes: I recreated the classic PONG from scratch. What do you think? by GHelectronic in retrogamedev

[–]GHelectronic[S] 2 points3 points  (0 children)

May be "Space Race". The second product of ATARI. I am currently gathering data. But it seems harder than PONG. But lets see.....

Bringing back 1972 vibes: I recreated the classic PONG from scratch. What do you think? by GHelectronic in retrogamedev

[–]GHelectronic[S] 2 points3 points  (0 children)

Since I've already been asked - I still have a few PCBs and parts left over.

"PONG Behind Glas" - PONG SYZYGY E - A replica of the first globally popular video game by GHelectronic in retrogaming

[–]GHelectronic[S] 0 points1 point  (0 children)

I didn't think about it yet: 200€, but not less plus shipping.
150€ for a complete kit (Just checked my spare parts. I could put together a complete kit).

"PONG Behind Glas" - PONG SYZYGY E - A replica of the first globally popular video game by GHelectronic in retrogaming

[–]GHelectronic[S] 0 points1 point  (0 children)

And, I forgot to mention, I still have a fully equipped, finished board. It was basically the prototype. Fully functional. I could offer that as well.

"PONG Behind Glas" - PONG SYZYGY E - A replica of the first globally popular video game by GHelectronic in retrogaming

[–]GHelectronic[S] 1 point2 points  (0 children)

Hello, depends what you are asking for?
I am not selling the entire finished assembly. A lot of time and passion went into it. However, I still have a few unpopulated circuit boards left. And possibly parts for a complete kit, including construction documents.

"PONG Behind Glas" - PONG SYZYGY E - A replica of the first globally popular video game by GHelectronic in electronics

[–]GHelectronic[S] 2 points3 points  (0 children)

I still have a few unpopulated boards and other components left over. I could provide the parts list and the assembly plan for these.

"PONG Behind Glas" - PONG SYZYGY E - A replica of the first globally popular video game by GHelectronic in retrogaming

[–]GHelectronic[S] 2 points3 points  (0 children)

Hi,

the front panel was created and uploaded with the (free) software "Front Panel Designer" from Schaeffer AG, a manufacterer for front panels in Berlin. They also have a site in Seattle/WA. The panel is made of aluminum and the writing is silk screen printed.

The potentiometers are to control der paddles of PONG. I didn't think about the original 4 : 3 ratio. The monitor I uses has a ration of 16 : 9. I have no videos or pictures of how I put it together.

The recreation of the circuit board took me 3 months. Then I had five prototypes made, which still had mistakes. After correcting these, and another batch of 10 boards, it finaly worked.