>I have an old BTI LK2000 (3-1000Z) amp whose filter caps (240mfd at
>450wvdc, Mallory CG241T450V4C) have bit the dust.
You need to replace them with a higher total WV, which means more
capacitors than stock. Doing this requires building a replacement cap
mtg. board to cover the existing space.
- I would go for a total minimum WV of 4000, or 2kWV per leg for the
BTI's fullwave doubler.
- Mouser 1 800 346 6873 or DigiKey 1 800 344 4539. carry such
capacitors. For longest life, use 105 deg C rated caps. The least
stressful way to mount electrolytics is with silicone rubber adhesive on
a plexiglas or g10 sheet, terminals up. Leave a an air gap between
capacitors. Matsushita/Panasonic100k ohm 3w MOF resistors make good
equalizer resistors, and they will not make enough heat to bake out the
caps as would be likely with fewer ohms. .
>Anyone know of a
>source for replacements at a reasonable cost? Suggestions for
>substitutes?
The newer design, more compact, electrolytics will allow you to use more
total C, even though you will be using more units.
>
cheers
Rich...
R. L. Measures, 805-386-3734, AG6K
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