Changes
--one button speedking : was mostly compatible with any mundane 1 button Atari controllers, so commercialised for Home computers : Atari ST, Amiga, C64, Speccy and Amstrad CPC/Plus.
--two buttons speed king : existed for nintendo (may have had extra buttons start and select) yet a SEGA model may have existed too (Sega Master system).
--Analog : was mostly for PC. It seemed to have actually 3 buttons from what I remember on advertisements, but the 3rd button may be a thing to calibrate instead..
--others : existed for nintendo (may have had extra buttons start and select) or SEGA Megadrive (3+1 buttons)
Concerning this model pictured :
But it is in no way an ANALOG model.
Analog speed king had a different stick.
http://cgi.ebay.fr/Manette-KONIX-Speedking-ATARI-AMSTRAD-Teste-OK_W0QQitemZ290391592307QQcmdZViewItemQQptZFR_SK_JeuxVideo_Accessoires?hash=item439cb00d73
There the same but in Atari/Amstrad slightly different wiring.
http://cpcrulez.fr/hardware_joystick_konix_speedking.htm
Nintendo NES model.
