Dsg d  n q   Phil Townshend&i EduTek Ltd 09Arialdo z @ @d?"@y U" 4 mN`T_T`T_T`T}" { `220  H? H?"o o ~2o o 2}"""S o ^o `S `S "}""7 o >o @7 @7 "}" "~ o o   "}" "^ o o ` ` "}" "> o ޥo @ @ "}" " o o   "}" X# K@@8@8h[g" jpPFpPFoPFoxipxi"r mN`T_T`T_T`T}"  `220  H? H?"ޭ~22}"""^``"}"" u>@u@u"}" " ~Y Y Y"}" " ^=`=`="}" " >!ޥ@!@!"}" "   "}" X# K@@80*h[g" & jpPFpPFoPFoxipxi"~  ^ ` X#L# 0Q0*pPF0*|pb0*f"PK 0\ `9pPFpPFoPFoxipxi"S o ^bo `S `X#X#"L Z Xhf"P0`9pPFpPFoPFoxipxi"^b``X#X#"ȘXh[# 7 @~@8@8h[" " ^" ` X#"> B ^@ `@ X#[#"^ b ^` `` X#[#">  ~'   '@ 'L#[#u @~@8@8h[""^e ` eX#">!B!^@!`@!X#[#"^=b=^`=``=X#[#"~YY^BY`Y@X#"u^' ` 'u'[#L#d )0Q{\rtf1\ansi\deff0\deftab254{\fonttbl{\f0\fnil\fcharset0 Arial;}{\f1\fnil\fcharset2 WingDings;}}{\pard\ql \x\fs28\b\ul 1-90 BINGO NUMBER GENERATOR\par \ql \x\fs28\b\ul \par \ql \x\fs20 A straight forward counter with logic to reset at 91, thus counting from 1 to 90. The first time the circuit is connected it may display "00" since both counters are reset. However once the button is pressed the counters will never reset at the same time and never display "00" again.\par \ql \x\fs20 \par \ql \x\fs20 Press SW1 to generate a number.\par \ql \x\fs20 \par \ql \x\fs20 Five ICs are used:\par {\pntext\pard\f l\tab}{{\*\pn \pnlvlblt\pnf1\pnhang\pnindent360{\pntxtb{l}}}\ql \x\fs20 4518 - Dual 4bit BCD counter\par {\pntext\pard\f l\tab}\ql \x\fs20 4511 - 7-segment decoder\par {\pntext\pard\f l\tab}\ql \x\fs20 4081 - 2 input AND gates\par {\pntext\pard\f l\tab}\ql \x\fs20 4069 - NOT gates\par }\ql \x\fs20 \par \ql \x\fs20 Circuit should function fom 4.5 to 12 volts.} }T# VP0*@ee0*hm0*"x " x"~  ~  [#"udeue eT#"( ]l""d e [#"~Yu>Bu@Y@T#"xR`8H"~YY>Y@Y[#T#P d `  6 0*  XM"> b B@ ` ` @T#T#" V " BV @V  T#" ( z("! "   [#"">!: ): ): @!@!`T#[#L#`{pj0*@e0*@e0*h0*h0*z"7`N1K  H? H?"#CB_>@B@ C@@@_@@z"L#"@1M0.05 H?H?L#@@pj0*@e0*@e0*h0*h0*"$"$>@B@ $@@@@L#""89HG"%>@B@@@@@"L#"&C~ Cz""x"  100n   @ h. h."'"x""x"(>@B@@@@@L#x"")" ^B@@@ @@ `x"[#g"  pPFpPFoPFoxipxi"*~Y ^ ` Y[#"+> B ^@ @ `g"[#" 7PGenerate--0*-XM-XM-XMz"@'1K  H? H?"89HG",Y~Y"" xR`x"-~YY^YY`[#" xf"P09".    f""g"Vg"/>_B_@_@_g"z"@ ?"@