[R-390] The OD dicussion

[Tisha Hayes]

With infinite resources, time and room to mount them, the 715/716P caps of
the 600-1000 V persuasion would be a a great idea. But, there are places
where that level of performance is just not needed and can easily be handled
with a ceramic disk.

Silver Mica's are good capacitors with only a few that stray from the flock
with time. Also all of the pF type caps would not be candidates for
wholesale replacement unless there is a leakage/ stability/ performance or
adjustment limitation by a slightly out of spec component.

There are some areas where the Vishay / Sprague 715 and 716P caps would
really made a difference. With some capacitance changes in the audio string
(read Chuck's quick and dirty audio mods for specific caps to change and
what you can change the values to), the deadly filter killer cap (numero-Uno
necessity to change), acid leaking caps on the audio deck, and maybe some
changes to impove AGC performance (another well documented mod).

Don't forget the electrolytics that you would either re-stuff, buy
re-stuffed caps or find a new replacement for on the audio deck. These are
really important to do but are not Vishay/ Sprague Orange Drop solutions.

All told, you may end up replacing a 12-18 caps depending on how far you
want to go on mods and on "gold plating" your receiver. Beyond that point
and it will become a process of replacing good caps with more good caps and
soon, once you run out of room, if you pulled back the cover you would see
nothing but orange from all of the capacitors you had to hide into every
corner.
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