Add Data Precision 3500.

Need to photograph the other ones.

inst.htm

@@ -432,6 +432,21 @@ <H2>The HP 3456A Digital Voltmeter</H2>
 Seems a bit silly to use it to test the AA batteries in the TV remote control...
 <BR CLEAR=RIGHT>
 </P>
+<H2>The Data Precision 3500 Digital Multimeter</H2>
+<P>
+<IMG ALIGN=LEFT SRC="dp3500a.jpg" ALT="Data Precision 3500 multimeter" WIDTH=465 HEIGHT=200>
+5&frac12; digit bench multimeter with voltage and resistance ranges.
+Featuring the beautiful Panaplex display.
+Once again it has a
+<A HREF="https://en.wikipedia.org/wiki/Four-terminal_sensing" TITLE="Wikipedia: Four-terminal sensing">Kelvin connection</A>
+(four-wire Ohms mode).
+Big row of relays inside that select ranges and click nicely in auto-ranging mode.
+BCD digital output connector on the back.
+I actually have three of these meters and occasionally use them.
+For more photos, see this Flickr album:
+<A HREF="https://www.flickr.com/photos/anachrocomputer/albums/72157699230798452">Data Precision 3500 Multimeter (2)</A>.
+<BR CLEAR=LEFT>
+</P>
 <H2>The HP 3466A Digital Multimeter</H2>
 <P>
 <IMG ALIGN=RIGHT SRC="hp3466a_1.jpg" ALT="HP3466A multimeter" WIDTH=250 HEIGHT=104>