I'll preface by saying I haven't tried any of these, but I did a quick look=
on Ebay for signal generators and ran across some fairly affordable option=
s:
1Hz-500kHz $25US
http://www.ebay.com/itm/DDS-Function-Signal-Generator-Sine-Triangle-Square=
-Wave-Frequency-1HZ-500KHz-/331591954387?hash=3Ditem4d346bafd3:g:8SMAAOSwu4=
BVjdJd http://www.ebay.com/itm/DDS-Function-Signal-Generator-Sine-Triangle-=
Square-Wave-Frequency-1HZ-500KHz-/331591954387?hash=3Ditem4d346bafd3:g:8SMA=
AOSwu4BVjdJd
2MHz two-channel $60US
http://www.ebay.com/itm/2MHz-Dual-Channel-DDS-Function-Signal-Generator-Si=
ne-Square-Wave-Sweep-Counter-/291250697392?hash=3Ditem43cfe4f4b0:g:eMoAAOSw=
fcVUIj0j http://www.ebay.com/itm/2MHz-Dual-Channel-DDS-Function-Signal-Gene=
rator-Sine-Square-Wave-Sweep-Counter-/291250697392?hash=3Ditem43cfe4f4b0:g:=
eMoAAOSwfcVUIj0j
Another 2MHz with what looks like one channel $41US
http://www.ebay.com/itm/2MHz-DDS-Function-Signal-Generator-Sine-Square-Wav=
e-Sweep-Frequency-Meter-TTL/181775260880?_trksid=3Dp2047675.c100005.m1851&_=
trkparms=3Daid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D20131003132420%26=
meid%3D2b925341be50431988b18fe51bae2cd5%26pid%3D100005%26rk%3D2%26rkt%3D6%2=
6sd%3D171826933080 http://www.ebay.com/itm/2MHz-DDS-Function-Signal-Generat=
or-Sine-Square-Wave-Sweep-Frequency-Meter-TTL/181775260880?_trksid=3Dp20476=
Message: 75.
Subject:
c100005.m1851&_trkparms=3Daid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3=
D20131003132420%26meid%3D2b925341be50431988b18fe51bae2cd5%26pid%3D100005%26=
rk%3D2%26rkt%3D6%26sd%3D171826933080
(Egads those are ugly URLs! Sorry about that.) Anyway, take a look around =
and see what your options are. I'd also try that Windows 7 machine and see =
if you can do this for zero or near-zero cost. If you find a sound card tha=
t'll play nice, you can get piezo disks at Radio Shack for a couple of buck=
s. Just avoid the ones that have built in circuitry. They cost more, so the=
y're easy to spot.
Tom
|