[sdiy] Four-trace scope -- useful ?

[Dave Manley]

Andre Majorel wrote:
> My Tektronix 535A is acting up again and I may have to replace it.
> How often do you need more than 2 traces for synth-diy and general
> audio repair and tinkering ? Note that there may be some digital
> circuits in my future...
> 

If you are thinking of digital I wouldn't get less than
a four-channel scope*.  To save money, some scopes
have two fully featured channels, and two with just
1V/div or 5V/div.  For example the Tek 22xx or 24xx series
scopes.  They can be had for a few hundred dollars
in the US, not sure about overseas.

-Dave

*Although two channel with an external trigger is
not a horrible compromise.