Harley, do you know when the STD-1 and TFX4 came out? These are the only anolog units I could find here in europe that had 220V. Never found the S1000 or the i series in 220V. The D4,MQ-1 and Pitchraq are also imported as 220V units.
I still really love my Digitizer, I find it to be an amazing delay unit, especially when used in stereo.
MJMP,
I can't give you an exact date of production for those two units, but I can give you an educated guess for an approximate time frame of manufacture, and I would place this time frame from 1980-1982. Here is how I come up with that:
Back in the summer of 1983, I found a tiny music shop run by a guy who carried a small inventory, but everything he carried was top shelf. He didn't waste time with cheap gear. He was also the guy who introduced me to ADA rack gear. ( I had my Flanger pedal that I bought in 1978, so I knew it was good). I never saw the STD-1, but he did show me the TFX4 and let me demo it. It was pretty interesting, but at that point in time, I wasn't into building racks. I had several combo amps and was using a couple of pedals through them, and felt like at most venues at that time, they weren't big enough, or better yet, not moving enough air. So I didn't buy it because then I needed to get a case, and clean power supply etc. etc. and it seemed that I was going to end up building a rack that was bigger than my Fender Twin combo rig. So I walked away from that. The effects coming from that TFX4 haunted me so I went back after a few months, after I acquired my Marshall Stack and Vox Super Beatle Stack to pick up that TFX4, and it was gone.
In it's place he had the 2FX and a couple of "i" series delays. That was in early 1984.
Considering the front panel graphics of the STD-1 and TFX4, It seems like ADA, who seemed to upgrade their effects line every two years, had replaced these with their current models. So, if I'm correct, The STD-1 and TFX4, may have been ADAs first line of signal processors probably beginning around 1980-1981. They only had some interesting pedals before that, but they sounded extremely good. Around 1986, I didn't see any more "i" series delays, I was seeing the S-1000s, which had some terrific effects in them, and were a bit more simplified that the "i" series, but like the "i" series, they only did one effect at a time, so you needed several to get a variety of preset effects. Which explains why I have so many S-1000s and "i" series delays. I do have a couple of D4's too, but since they're programmable, I didn't need quite as many.
So there you go, that's how I've come up with those time frames. It's based on when I've seen these in the shops as new gear and what Todd told me at ADA, during some of our conversations. I miss him, he was such a brilliant guy, and a super cool dude to boot.