[Boatanchors] Replacing rect tubes with diodes question

[WØQFC]

I want to replace the # 80 in my S-40A with diodes so I can reduce heat by 
less draw on the tranny.

Can I just use two diodes that will handle the current, or is there 
something else I should do ~ additional parts, etc?

Also, I would like to replace the 6H6 for the same reason, but what diodes 
should I use?

I know that these items are available but in the interest of saving money, I 
would like to do it myself. . . .

Comments?

73

Gene, WØQFC

www.w0qfc.com