I had this D22 for years sitting around looking pretty in its original box. Its all original with the impedance set to high. So I wired it up for my Ranger and it doesn't sound as good as my D-104 321 crystal element. So I found this Sure Brothers equalizer and the price was right. I wired it up and it was determined the D22 needs a microphone preamp. I borrowed a Radio Shack one from wd7f and it works but......
So I made an adapter for the D22 to fit the base of the D-104. So in my search to build a preamp I found w2aew youtube video
http://www.youtube.com/watch?v=aLbB4XUS0lM with his preamp and equalizer. His build is here,
http://www.qsl.net/w2aew/myd104amp.htmlI thought if I could tailor this for the D22 and the D-104 base using the PTT with the Ranger on AM it would be nice.
Thoughts ...comments?