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<DIV dir=ltr align=left><SPAN class=796131102-04032011>Thanks for the info, Joe
and Phil.</SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=796131102-04032011></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=796131102-04032011>Yes, I need 9V high
switched to the relays at 100 ma per band. The relays are grounded on the
board. I see the connections coming off the Penny 25 pin
connector on the schematic. Also see the software toggles required.
Good.</SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=796131102-04032011></SPAN><SPAN
class=796131102-04032011></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=796131102-04032011>That circuit looks good,
Joe. Though after a quick look, the M54581 chip is $20 and only available from
the UK. </SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=796131102-04032011></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=796131102-04032011>I was
thinking an easier way might be to use a small 2N2907 PNP
transistor which gets its base grounded from Penny, the collector to 9V and the
emitter in series with the LP relay. I would need one transistor per band,
or about seven transistors total. Not too bad. </SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=796131102-04032011></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=796131102-04032011>Does this sound like it
would work OK?</SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=796131102-04032011></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=796131102-04032011></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=796131102-04032011>Tom, K1JJ</SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=796131102-04032011></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=796131102-04032011></SPAN> </DIV>
<DIV dir=ltr align=left>
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</DIV>
<DIV dir=ltr align=left><FONT face=Tahoma><B>From:</B> K1rqg@aol.com
[mailto:K1rqg@aol.com] <BR><B>Sent:</B> Thursday, March 03, 2011 8:35
PM<BR><B>To:</B> k1jj@comcast.net; hpsdr@lists.openhpsdr.org<BR><B>Subject:</B>
Re: [hpsdr] Control an FT-1000D Low Pass Filter assembly with PSDR
mouse?<BR></FONT><BR></DIV>
<DIV></DIV><FONT id=role_document color=#000000 face=Arial>
<DIV>Tom </DIV>
<DIV> </DIV>
<DIV>This circuit should fill the bill. Thanks to WW2R for this design.</DIV>
<DIV> </DIV>
<DIV><A
href="http://g4fre.com/hpsdr_high_side.pdf">http://g4fre.com/hpsdr_high_side.pdf</A></DIV>
<DIV> </DIV>
<DIV>Just apply 9 v instead of 12 v! It drives my Yaesu FT-747 brick and
filters.</DIV>
<DIV> </DIV>
<DIV>73 de Joe K1RQG</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>
<DIV>In a message dated 3/3/2011 8:15:11 P.M. Eastern Standard Time,
k1jj@comcast.net writes:</DIV>
<BLOCKQUOTE style="PADDING-LEFT: 10px; MARGIN-LEFT: 10px"><FONT
style="BACKGROUND-COLOR: transparent" color=#000000 face=Arial>***** High
Performance Software Defined Radio Discussion List *****<BR><BR><BR><BR>
<META name=GENERATOR content="MSHTML 8.00.6001.19019">
<DIV dir=ltr align=left><SPAN class=828590101-04032011><FONT face=Arial>My
plans call for using an old Yaesu FT-1000D 200W PA unit with relay
switched LP Filters as my linear amplifier for Penny.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=828590101-04032011><FONT
face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=828590101-04032011><FONT face=Arial>I
would like to switch bands on this low pass filter
assembly using the mouse PSDR software band selections along with the
Penny/Mercury band selections.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=828590101-04032011><FONT
face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=828590101-04032011><FONT face=Arial>Could
someone advise me on the best approach to switch the 9 volt LP filter relays,
160, 75, 40, 20, 15 and 10M using the existing output
interface? Or do I need to build an interface? </FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=828590101-04032011><FONT
face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=828590101-04032011><FONT face=Arial>The
simple alternative is to just use a rotary band switch and switch
the L.P filter manually. I want to explore using the mouse
auto-method first.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=828590101-04032011><FONT
face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=828590101-04032011><FONT
face=Arial>Thanks.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=828590101-04032011><FONT
face=Arial></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=828590101-04032011><FONT face=Arial>Tom,
K1JJ</FONT></SPAN></DIV><BR><BR>_______________________________________________<BR>HPSDR
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