[Heathkit] Source for multi Pi wound RF chokes?

[Randy Perkins]

Does anyone know of a good source for the multi pi wound RF chokes 
commonly used in the older Heathkit gear. Looking in my AT-1 and VF-1 
manuals they have a Heathkit part number of 45-4. These are 1.1 MH RFC. 
I believe these will handle several hundred milliamps of current. A 
while back I had purchased several RF chokes from Mouser to use in my 
AT-1 rebuild. They did not work properly. Now I am using several misc RF 
chokes tied in series. Any info on this would be most appreciated, I am 
needing some of these in my AT-1 and a small homebrew project. Thanks, 
Randy, W5KCM