P6032: Difference between revisions

The '''Tektronix P6032''' is an 850 MHz cathode-follower probe, intended for use with samplers such as the [[1S1]], [[3S1]], [[3S76]], [[4S1]], and [[4S2]].

Like all active probes, the P6032 requires power, and for this reason it has two connectors at the scope end of the cable.   

''What, exactly, does the clipping line in the probe body do?''

:''It appears to be 21 mm of RG-174 cable connected to the triode's cathode at one end, and open at the other end.  ''

:''The circuit description in the manual describes it vaguely, saying only that, "The clipping line reduces signal aberration to a minimum."''

{{Spec | Maximum input voltage | ±0.225 V × attenuation, de-rated for CW operation for 500× and 1000× attenuator heads }}

{{Spec | Input capacitance | 3.6 pF (10× head) to 1.3 pF (1000× head), 7 pF without attenuator head}}

{{Spec | DC offset | ≈0.5 V (not adjustable)}}

P6032_ext.jpg | External view of P6032 without attenuator attachment

P6032-schematic.png | P6032 Schematic

P6032_int_c.jpg | Internal view of P6032  Probe tip connects directly to triode grid, which is a bare wire coming out of the top of the tube.  Clipping line runs along the body of the probe to the left of the tube socket.   

P6032x10.jpg | ×20 attenuator tip

P6032_pwr.jpg | Internal view of power supply connector. Signal coax passes through undisturbed.

P6032_risetime.jpg | Display on [[545|545A]] with 1S1 and P6032.  Pulse is generated by Tek [[284]] tunnel diode pulser driving into 50 Ω load, GR-BNC adaptor and then to the probe using a probe to BNC adaptor.  The 10x attenuator tip was used on the P6032.  Timebase is 200 ps/div.