Just seen on eBay while browsing for something else: KBPC3506 BRIDGE RECTIFIER 35A 35 Amp 600V £2.89 post paid. Most likely suitable for those intending to use 4 cell LiPOs with the FT-857.
In reply to G4OIG:
Yep, just remember to feed the LiPo +ve into the Bridge rectifier negative pin and take the reduced voltage from the BR +ve pin you’ll then have a 1.4volt drop with a 70A max capability.
Phil G3YPQ