An LED lamp is not suitable for a lamp limiter.
You need an old fashioned lamp with just a filament and no electronics. These are sold as Rough Service (RS) lamps and this is an example. Other suppliers are available.
https://www.bltdirect.com/240-volt-1...-service-pearl
Before you even think about applying power check that the new capacitors in the PSU have been fitted the right way round and test the diodes using the diode test function of your DMM.
You should test the PSU without it being connected to the transceiver. You can do this by shorting pins 1 and 2 of the plug.