Glad you offered something constructive Phil.
Oh sorry must have been someone else.
why dont you try offering an answer instead of just cutting down everyone
else?

Doug

"Phil Allison" wrote in message
u...

"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