Models ES 2203 and ES 2204
Like later models ES 2208 and ES 2218, models ES 2203 and ES 2204 were called Las Vegas.
Both are absolutely same except that the former outputs a black an white picture
whereas the latter is the color version. Strangely, it happened that parts were mixed
between both models during manufacture. The pictured ES 2204 has ES 2203 pads.
These two systems were released in 1977 and use the General Instruments AY-3-8500 game chip, which features six games (four by default and two shooting games when purchasing the pistol). Like ES 2201, they use a special knob to adjust the video frequency, allowing to use the system on any channel.