[Techman]

Just for reference, here's the circuit of the Dynatron version of the same amplifier from 1948, and as you'll see, no series capacitors and NO resistors across them.

However, one little 'mod' I would perhaps advise that you could do, and that's to include the 500mA fuse protecting the HT winding of the transformer. This was a modification by Dynatron on this later circuit, as the earlier one from 1945 does not include this fuse, so I guess they'd had the odd transformer disaster with the earlier amplifier design in the event of an HT short.