Oscilliscope - Good deal?

[Joe Boucher]

At 02:37 PM 11/3/97 -0600, you wrote:
>>I have a business card from a vendor who has a $25 dollar HP122AR
>>Oscillicope.  

[snip]

>>Thanks,
>>Joe Boucher
>>'70 RS/SS Camaro  '81 TBI Suburban
>>
>
>In my 1989 Tucker catalog, the 122AR is listed at $595 (working, warranteed);
>it's a 450 kHz bandwidth -- adequate for audio work -- barely adequate
>for efi work -- you'll be real unhappy real soon when measuring any
>digital signals -- the rise and fall times will look like RC time
>constant charge/discharge curves rather than sharp edges and you'll
>not be able to diagnose in-circuit ringing (i.e. you'll probably
>be able to see ringing from injector coils, etc but not from traces
>or other signals that are quite fast).
>
>For $35, it sounds like "what the heck"  ....  but if the 122 is a
>vacuum tube device, then it'll be a real hassle waiting for the tubes
>to warm up and drift around -- and one bad tube can cost you $35 to replace.
>Plus, it'll be BIIIG and H.E.A.V.Y !!  Still, if I were a kid wanting
>to play (i.e. just learning and no money) I'd jump on it.  OTOH, as
>someone else said, you can likely get a used 50 MHz or better dual trace
>scope for $200 or so.
>
>Tom Cloud
>


I consider that going the extra mile.  I'm glad I didn't buy it.

Thanks,

Joe (Who are you calling a kid?) Boucher
'70 RS/SS Camaro  '81 TBI Suburban