■ FIGURE 5
gain is 2 dB and the
bandwidth is 10 MHz.
The maximum output
is one volt p/p and if
that is exceeded, there
will be distortion due
to saturation delay in
■ FIGURE 4
protect everything in most cases.
However, I found the circuit of Figure
3 (which I modified a little) on the
world wide web which will fit your
requirement. I simulated the circuit
(see Figure 4) for the response; the
26 September 2010
QI’d like to make a game clock similar to the ones
used for basketball
games for my daughter.
Can you help me with
how I could
— Les Manis
ANot having played basketball or paid attention when watching, I don’t know if the clock counts down or
up, so I will wing it and assume a
count down clock with four quarters.
High school games have eight minute
quarters, so two digits counting
tenths of minutes will suffice.