[Elecraft] OT: FS Tektronix 2465B Oscilloscope w/2 P6137 Probes & Manual

[Howard Ashcraft]

This is my personal 2465B that I am selling because I have an 11302a that (as long as I don't have to lift it) provides the same utility as the 2465B.  The 2465B is a 4 channel, 400 MHz scope that many believe is the acme of analog portable scopes.  I have placed photographs of the scope at ftp://ashcraftfamily.net.

A few things about this particular scope.  This was last officially calibrated on 5/18/2005.  However, I have a Tektronix CG5011 calibration generator and I am including photographs of a fast rise signal on channels 1 & 2 and a photograph of the timing output.  The fast rise signal tells you that the vertical amps are running slightly better than spec.  As a rule of thumb, 0.35/rise time gives you the scope bandwidth.  Here, without considering the rise time of the signal itself, this calculates to about 416MHz, which means that the scope is conservatively rated.  I have also checked the bandwidth using a Tektronix SG5030 leveled sine wave generator and obtained similar results and have the checked the vertical accuracy, as well.  The fast rise signal is at the fastest sweep using 10x magnification, which also shows that the trace is good. The time mark photograph shows that the horizontal timing is very accurate, also.

Because I was planning on keeping this scope, I overhauled the power supply (about a year ago), replaced virtually all of the electrolytic capacitors and upgraded one of the bridge rectifiers. I then readjusted the supply and went through most of the performance checks and adjustments for the scope.  The upshot is that I am quite confident that everything is working properly.

I am including 2 P6137 Tektronix probes with hooks and grounding leads.  These are the probes spec'd for this scope.  One of the probes is missing a plastic "wing" that is on the side of the plastic collar around the bnc connection, but this has no effect on functionality.  The scope has a probe pouch attached and I have an original manual and a .pdf of the service manual.

I am asking $650 for the above, plus actual shipping plus $15 for shipping materials.  If you can pick up in Alameda, I also have a scope cart (seen in the photographs) that I will add for an additional $20.

Howard W. Ashcraft W1WF
hwa_AT_ashcraftfamily.net