No Problem Phil.

For a 2900 ohm plate load:

Tank capacitance : 250pf variable in parallel with 150pf fixed.

Tank inductor: 23 uH

Loading capacitance: 2000pf variable in parallel with 2000pf fixed.

FYI, RCA Ham Tips volume 14, number 2, dated July-August 1954 is devoted to Pi-networks, and has a chart for impedances of common tubes at various voltages, and a chart for component values to match various operating impedances. A very handy tool to have. It’s available here:

http://n4trb.com/AmateurRadio/RCA_Ham_Tips/issues/rcahamtips1402.pdf73, Mark ~ AE2EA

Thanks Mark for the cookbook article.

In my case I use the Wingfield (W5FD) equations programmed in MatLab with the Terman correction.

"New and Improved Formula's for the Design of Pi and Pi-L Networks," QST, aug. 1983.

Phil - AC0OB