Hydroponic/Aeroponic Sequencer

<body topmargin=0 leftmargin=0 marginheight=0 marginwidth=0> <table cellpadding=0 cellspacing=0 border=0><tr> <td valign="top" colspan=2 height=90 BGCOLOR="#006699" TEXT="#080000" background="1fcfd5a3.jpg"> <div> <FONT SIZE="5" COLOR="#336666" FACE="Arial" ><B>BIT Company</B></FONT><B>     </B><B>|</B><B>     </B><A HREF="index.htm" TARGET="_top" TITLE="BIT Company"><U><B>home</B></U></A></div> <bR> <div> </div> </td> </tr><tr> <td valign="top" width=210 BGCOLOR="#FFCC66" TEXT="#080000" background="1fdd2b03.jpg"> <div> <A HREF="id50.htm" TARGET="_top" TITLE="Greenhouses"><U><IMG SRC="0f1b4f00.jpg" border=0 width="180" height="240" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></div> <div> Click image for link to BIT Company Greenhouses</div> </td> <td valign="top" height=390 BGCOLOR="#FFFFCC" TEXT="#080000"> <div> <I>Hydroponic/Aeroponic Sequencer</I></div> <div> <IMG SRC="202e0080.gif" border=0 width="480" height="8" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <bR> <div> <IMG SRC="07e8fc20.jpg" border=0 width="399" height="194" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></div> <bR> <div> A few years ago I was given a whole box full of small pumps, electric solenoid valves, & small plumbing fittings and, being an inveterate greenhouse gadgeteer, decided to try my hand at hydro and aeroponics. Since I build greenhouses and greenhouse kits commercially, I've several of my own to play in.</div> <bR> <div> As I was not sure exactly what timing patterns would be best for the experiments, this device was made with broad enough adustments to cover most of the forseeable contingencies. The FILL and DRAIN output drivers can be internally wired to provide either 24 VAC or 120 VAC. For aeroponic applications, only the FILL output is required.</div> <bR> <div> <A HREF="id40.htm" TARGET="_top" TITLE="Hydroponic Sequencer schematic"><U><IMG SRC="0f2c89e0.png" border=0 width="200" height="158" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></div> <div> Sequencer schematic</div> <div> Click for larger image</div> <bR> <div> <A HREF="id41.htm" TARGET="_top" TITLE="Hydroponic Sequencer layout"><U><IMG SRC="0f3c8850.png" border=0 width="200" height="133" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></U></A></div> <bR> <div> Sequencer layout</div> <div> Click for larger image</div> <bR> <div> <A HREF="id42.htm" TARGET="_top" TITLE="Hydroponic Sequencer parts list"><U><U>Hydroponic Sequencer parts list</U></U></A></div> <bR> <bR> <bR> <bR> <bR> <bR> </td> </tr></table></body>