Few information is known about this obscure system...
It is software compatible with the Interton VC-4000 and "clones". This doesn't mean that it can use the Interton cartridges, as they certainly won't fit, but the internal specs and software are the same. The CPU is the 2650A from Signetics and the Video Controller is the 2636 from Signetics as well. About 40 cartridges has been released for the Interton VC-4000, but we can't tell how many were available for the TRQ H-21, nor if exclusive games were developped for it...
Like with all the systems of this "Interton family", there are two controllers with 12 buttons keypad + 2 fire buttons + a joystick. Apparently the controllers were designed to use informative plastic layers delivered with each games, showing the functions of each key. The control panel is composed of an ON/OFF switch and three buttons: Carga (Load/Reset), Seleccion (Select) and Inicio (Start). In fact when you switch on the console, you must press "Carga" to "load" the game.
Thanks to Juan Maestre for some info.
We need more info about this computer ! If you designed, used, or have more info about this system,
please send us pictures or anything you might find useful.
H-21 Video Computer
T.R.Q. (Talleres Radioeléctricos Querol)
BUILT IN LANGUAGE
Two controllers with 14 buttons keypad and joystick
Signetics 2650A or equivalent
Signetics 2636 (Video processor)
1 channel beeper
BUILT IN MEDIA
24 (from the original list included in the console package).
Power supply built-in, 220v AC
120 (Spain, 1983), game cartridges = 18 (Spain, 1983)