Re: 067-0525-01 or equivalent needed.


Hi Eric,
As several people have pointed out already, the 1MHz bandwidth of the 7A22 Differential Amplifier is too low to require a T-cable matched to 0.1".

However, it occurred to me that you may have confused the 7A22 with the 7A13 Differential Amplifier. The 7A13 bandwidth is 100+MHz and it definitely does require a T-cable like the 067-0525 to test and adjust the plugin's high frequency common mode response.

Dennis Tillman W7pF

-----Original Message-----
From: [] On Behalf Of Eric
Sent: Wednesday, November 11, 2020 12:01 PM
Subject: [TekScopes] 067-0525-01 or equivalent needed.

I need this calibration fixture or something like it to calibrate a 7A22 and some 400 series scopes. This fixture is a BNC Y cable the important part is the Y side of the cable is matched length to within 0.1 inch. This is to remove cable aberrations and phase difference to the inputs. I don’t necessarily need the 067-0525 if I can order a matched length Y cable from somewhere.

Dennis Tillman W7pF
TekScopes Moderator

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