1) This unit is label "APF tv fun" pn the
front. It has a knob with fou
 game selection possibilities, on/off switch/ start button, angle settin
 bat size setting, and ball speed setting. It appears this is an old
 Tennis/baseball type of game unit. It also appears that the actual
 controllers on on the main unit in the form of knobs. It saw it was mad
 in Japan by APF Electronics, Inc. although I can't find a year. Could
 anyone help there? It also says underneath TV FUN Model No. 401A and 
that's the oldie of the bunch!  Early game machines from the mid '70 were
the tennis/pong type and used a few chips.  their logic was a mix of
digital and analog.   My guess would be 75-77 timeframe.
It would be some years before the tvgames would go the microprocessor
route to get the the first ataris and company.
Allison