My 2A3 (with James 6123HS irons) on the 'scope

[SDS-PAGE]

My 2A3 sounded good to my ears, but I wanted to see how it does on a 'scope, so here are some pictures some square waves:

50 Hz (the waves were flickering, so I had a hard time picturing this):

http://bp1.blogger.com/_i08-ibvZ150/R4QCL6-gb_I/AAAAAAAAARA/T9mRE7pgSwo/s1600-h/S5033003.JPG

1 KHz:

http://bp2.blogger.com/_i08-ibvZ150/R4QCZK-gcAI/AAAAAAAAARI/rfyes7kCri0/s1600-h/S5033004.JPG

20 kHz:

http://bp2.blogger.com/_i08-ibvZ150/R4QCmK-gcBI/AAAAAAAAARQ/WvpXnZ14Fwc/s1600-h/S5033005.JPG

I couldn't get anything square after 20 kHz. All in all, James irons seem to have pretty good freq. response. I also found that looking at the 'scope while adjusting hum balance is a good way to do it.

[Shannon Parks]

Usually, a 10kHz tells you all you need - having a 20kHz SQ through those 6123HS outputs is pretty impressive. Good job! BTW, what is your signal generator?

[SDS-PAGE]

Thanks, Shannon. I have a Global Specialties function generator that I bought on eBay for 26 bucks. Worth every penny, I think.