[R-390] Mods vs. Changes

[Tisha Hayes]

I have seen changes as updates to the design to substitute in different
components or to change the behavior of the radio.

Official mods may incorporate changes to the design to bring modules or
decks up to the most current revision. There are also a few mods to address
vulnerabilities (like detection of a receiver caused by a leaky oscillator
that can reveal the location of a receiving site) or for later
susceptibility to overcurrent.

A mod example would be the replacement of the rectifier tubes with diodes.
I think there was another with the PTO.

Then there are the entire special-build variants; For example the use of
Clevite ceramic filters for the IF deck (I have one of those decks).

*Ms. Tisha Hayes, AA4HA*

"Humans with AI; It'll be like Plyfoxians with a Slurb
Hail Soyka!"