Wnively321 wrote: ↑
Sat 12/29/18 4:46 pm
I have been looking at scope and i was wondering if a siglent 1202x-e would be what I’m looking for to work on my amps with?
Can it handle the dc voltage of a tube amp ?
That's a nice scope, personally I'm using the 1104x-e and it's great. Either one is fine.
The answer is yes and no regarding voltage. It depends on what amp you're working on, some go well above the input voltage (400Vpk @ 1Mohm), BUT, that's not how you're supposed to do it anyway.
What you want is to buy high voltage probes and/or a high voltage differential probe to handle high voltages. I'm using a B&K Precision PR2000B probe for high voltage concerns, and that goes up to to 2000 Volts at 100X.
My default probes are Pico TA131 I got on ebay new, at really good prices (about $12 each). The TA131 can handle 600V at 10:1 but only 200V at 1:1, so it's important to pay attention to that switch if you're using 10/1 switchable or other switchable probes. These probes are fine for 18 watters, but other amps can obviously be higher than the 600V. These probes are also much higher quality than what comes with the scopes.