Dear James,
What more can you tell us about the sealed Filtech filters
used in the Mk. VIB tuner?
What does "barely acceptable" mean? Does that mean these
filters were:
1) generally poor filters, even when "acceptable" OR
2) a small percentage were quite good but a lot
were rejected at the SAE factory OR
3) The best ones just barely met the spec (but
the spec was a good spec to meet to begin with)
Since they are sealed, can these be "unsealed"? Are
the filters potted with epoxy (say it isn't so!) or
soldered shut or both? Does Filtech exist any longer?
Do you think the problem with the filters is design or just
poor quality control at the Filtech factory or both?
Best regards,
Paul Bigelow
