<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">The lower third of this image shows the key CV processing circuit, including portamento…<div class=""><br class=""></div><div class=""><br class=""></div><div class=""><img apple-inline="yes" id="27F2C7F4-C75C-44FA-8F2D-0C0D2A632592" src="cid:E15EFFAB-5B07-417F-AF41-C51A1008ADCF" class=""></div><div class=""><br class=""></div><div class=""><br class=""></div><div class="">I wonder if some clever person could explain to me the function of the twin FETs Q504 and 505 ??</div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><img apple-inline="yes" id="A21534C1-95BC-4D05-96AE-29A1A8A190A6" src="cid:7CE16D52-5A97-4709-A30E-93BCC8410997" class=""></div><div class=""><br class=""></div><div class=""><br class=""></div><div class="">cheers</div><div class=""><br class=""></div><div class="">Adam</div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""></div></body></html>