That sounds like a slightly later (revised asic) version of the 1980/1981 one, probably released immediately before the 1982 ?holiday season? version which used the cop420 and had the red programming book.
LN
"When life gives you zombies... *CHA-CHIK!* ...you make zombie-ade!"
It has a TMS1700, with 1/2 the ROM and RAM of the TMS1000, but still in a 28-pin package.
I wonder what needed to be revised in the Battleship ASIC? I'm always bugged by the fact that if you press the same letter or number a 2nd time, it doesn't make a sound. So if I fire at A1 and then at A2, the 2nd A doesn't beep. It seems like that would have to be intentional, but I don't see how it is useful. It just makes me think the button isn't working.
Pff, there are so many. The newest one is from 1995/6(!) Pocket Repeat model 60-2152 = Tiger Ditto Pocket Repeat model 60-2468A = ? Pocket Repeat model 60-2482 = Tiger Copycat Jr?
BTW I wonder what MCU is in Tiger Lights Out. The 1st version is from 1995, it takes 4.5V batteries. https://en.wikipedia.org/wiki/Lights_Out_(game) http://www.jaapsch.net/puzzles/lights.htm
Could you make PCB photos of LJN Electronic Concentration?
Speaking of LJN, here's a failed product that we don't emulate yet in MAME: There's a bare console one for $20 right now on ebay, if anyone wants to dump it. Or we could do the future generation a favour by making them forget this ever existed?
*edit* @Rik if you're reading, do you know the MCU label of LJN Computer Impulse?