Got the urge to build another pulser. This time I laid it out so that I would be able to connect a charge line easily. This effort incorporates all the tricks I have learned in my journey of building Jim Williams' circuit.
(1) dual sided copper clad FR4, pure Chinesium. It was cheap, what can I say?
(2) Snip collector lead off 2N2369 and use the case to connect to the collector (it is internally tied to the collector like many metal case transistors)
(3) Use island cutter to make spots for soldering
(4) Transmission lines on the board (both for output and for the future charge line) are hand cut grounded coplanar waveguide. I measured carefully with calipers and I approximately match the dimensions several online calculators give me
(5) High quality Vishay thin film resistor is used for the termination on the output
(6) And last, but most certainly not least, this design conspicuously eliminates the 1 pF cap the original circuit uses. Instead, I put my microwave engineer hat on and am relying on the parasitic capacitance of the board. It works rather well!
Measurement set up today is my Type 547 'scope with the Type 1S1 sampling plug-in set to 200 mV/cm and 0.5 ns/cm. The output is going through a GR-874 20 dB (10X) pad.