Update: From Mikael Lindgren via AH:
"Hi there,
It's a dual-voice synthesizer that dates from 1979 or 1980.
The same synth was also released as the Multivox MX-75 dual-voice synthesizer.
I'd say with 99% certainty that these were made by the Hillwood company in Japan.
here's a couple of pics. Aside from the different logos they look pretty much identical.
This example says Multivox on the front panel but "Pulser" on the backpanel:
(the ID plate reads "Model: MX-75")
http://hem.bredband.net/linmik/multivox-pulser_MX-75.jpg
and the front panel on this says "Pulser":
http://hem.bredband.net/linmik/Pulser_M-75.jpg
"
Update: Via slabman in the comments below. More on Hillwood featured in this Sound on Sound article titled A Tale of Two String Synths.
From the article:
"Flipping the lid on the [Multivox] MX202 provides a bit of a shock. I expected to see either the Roland or Multivox name on the circuit boards -- but I was disappointed. Instead, I found the name Hillwood, a little-known Japanese manufacturer who were active in the late 1970s and early 1980s. This was a company founded by a Japanese gentleman called Kazuo Morioka, whose name translates as First Man Wood Hill. Morioka thus gave his name to the Hillwood synths and keyboards released throughout the mid-to-late '70s, as well as the short-lived manufacturer Firstman. Furthermore, Morioka was working in partnership with other manufacturers, rebadging some Hillwood products as Pulsar, and developing yet more for another Italian company, Solton. But where did Roland fit into all of this?"
I checked my image stash for the Hillwood M-75 posted below. I didn't find any, but I did find some shots of the Hillwood SY-1800:
