<div>I built an Ace Silver Seven when the kit first came out (late 70s?). I still have it. Based on the NE5044 encoder chip, it had different option cards that could plug in. The standard model had servo reversing, which was fairly new. I had the expo board, which used a quad op-amp, diodes and resistors to produce an exponential curve for the three flight channels. I came up with the idea to use the left over 4th op amp to produce a non-linear throttle (expo on throttle). Worked great. Servo reversing, dual rates, expo etc. Another option card that I can remember was a mixer. And this was all analog electronics, no microprocessor.</div> <div> </div> <div>I bought a S7 encoder kit from Ace, still have that too. I was planning on installing this encoder into a Proline single stick radio that I had, but never got around to it.</div> <div> </div> <div>Speaking of pattern gizmos that are no longer used, how about a slow-roll button. :-)</div> <div> </div> <div>Bob
R.</div> <div><BR><BR><B><I>John Pavlick <jpavlick@idseng.com></I></B> wrote:</div> <BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid"> <META content="MSHTML 6.00.2800.1106" name=GENERATOR> <DIV><SPAN class=910035404-15032006><FONT face=Arial color=#0000ff size=2>Ron,</FONT></SPAN></DIV> <DIV><SPAN class=910035404-15032006><FONT face=Arial color=#0000ff size=2> Well at risk of dating myself (and I'm not very old) I remember when the "new" Futaba 7FG-K came out. It had DUAL RATES - Wow! I had to have one. Actually I still have it. I had it narrow-banded and it's still a nice solid radio even though it's AM. Funny how we don't flip switches anymore, but back then it was "high tech". Actually, I think Ed has something really cool in mind. Stay tuned...</FONT></SPAN></DIV> <DIV><SPAN class=910035404-15032006><FONT size=2></FONT></SPAN> </DIV> <DIV><SPAN class=910035404-15032006><FONT size=2>John
Pavlick<BR><A href="http://www.idseng.com/" target=_blank>http://www.idseng.com</A><BR> </FONT> </SPAN></DIV></BLOCKQUOTE>