I have a Hammarlund 'HXL-One' HF amplifier. It has given me many good years of service.
The amp is in good working and cosmetic condition.
Original except of 572B cooling fan. No non-factory modifications.
The 'grilled' enclosure is dented in the top, right, rear corner.
Damaged during shipment to me many years ago.
I have the original manual/schematic.
I believe this model is very rare, because I have not run across another anywhere, including internet or swap fests.
Thanks,
John
N6VMO