"Dave" wrote in message
news:jQH_h.10486$KN6.6932@edtnps89...
I'd like to know what the minimum useful bandwidth is for an oscilloscope
to be used for general TV and audio equipment troubleshooting and repair.
I've stumbled across a 20MHz dual-trace scope at a second-hand store, it
appears to work and they only want $50 for it. The brand is "Leader"
which I'm not familiar with. Comments?

Offer them $35. Leader scopes are decent and the BW is fine for your use.