Hello all,
Just joined the list as I have a HP8753E to repair. It seems the step attenuator in the Source is faulty in the higher regions (region 4 and lower, attenuation above -40 dBm).
While searching around (https://literature.cdn.keysight.com/litweb/pdf/08753-90499.pdf?id=1000000125-1:epsg:man) and inspecting the Source module I found it is a 70 dB 33321Q attenuator.
Does anyone know what the "Q" model means?
The references I know for the 33321 are in but it does not mention Q.
Is it a difference in the connector cable?
Any help appreciated (also on the effects of replacing such an attenuator).
Best regards,
Job
PH4AS
