Minox designed a small electronic flash to accompany the small Minox EC camera. Small enough to go into the palm of your hand with room to spare, it is powered by a single AA 1.5v battery, and it is alleged it provides some 200 flashes on a single battery. Truth be told, I have never reached this number, never fired it so many times.
It is not an automatic flash unit, which means you will have to calculate and figure yourself the situation when you fire, distance and so forth. It does have a charge-ready lamp, but no test button. Three prongs/contacts are connecting with the three slots onto the end of a Minox EC camera, and you have to flick a switch to “flash setting”, in order to sync the speed of the camera with the apex of the flash discharge.
With the help of an adapter, you may use this flash unit on other Minox 8×11 cameras, such as A/IIIs, B, C, BL, LX, but you will have to set the shutter speed to the proper one: A/IIIs and B to 1/60-1/100 and for B, C, LX to 1/125, but you have to do your own testing. Of course, on LX you also have the dedicated shutter speed setting on the dial.
The adapter here was designed and produced by Minox, in order to make possible the use of this flash unit on other Minox cameras, from the 8×11 line (those with a flash sync nipple).
Basically, the flash unit hooks onto the adapter in the same way it hooks onto the Minox EC. The adapter then is pushed by friction onto the flash end of the camera, where it engages the flash socket.
Here, a Minox A/IIIs with the flash connected.