[Boatanchors] In need of a 83 tube for my Hickok

[Bill Mellema]

Guys,
I'm in need of a 83 mercury rectifier for my Hickok 539...am afraid to buy off  Ebay..don't trust the guys selling. If you have a spare to sell or trade for another tube I would appreciate it. I have a NOS RK-4D32 Raytheon or a tested6146 would like to trade.  Antique Electronics is out of stock and don't know when they will get any in. 
Thanks In Advance,
73's
Bill N3WM