"Alan Douglas" adouglasatgis.net
....
Hi,

For strictly audio work, you could do a lot worse than an H-P
1200A. 500kHz, 100 microvolts, differential inputs on binding posts,
extremely sharp trace.


** What's this "strictly audio work .......... 500kHz .. " business ?
The minimum scope bandwidth for an "audio" technician is 20 MHz - 50 MHz
is more like it.

So called "audio" work includes:

Mosfet power amplifiers with parasitic oscillations at up to 50 MHz.
The IF signals of an FM tuner at 10.7 Mhz.
The clock frequency of a uP based audio processor.
Local oscillator signals from 10MHz up to 50 MHz inside radio microphone
Rx and Tx units.


For purely tube based circuitry a 0.5 MHz scope may be OK - but only just.




............ Phil