Good question, but based on my experiences with the DSB sync detectors
in the Drake R8 and the Lowe HF-225, I would have to say that the
modified R-75 worked as well as the 225 and definitely maintained
better lock on signal fades than the R8. So, I would have to say that
it worked properly, at least on the one I modified. The best sync
detectors I've seen are in the Drake SW2 and the Lowe HF-150. They are
SSB selectable.

Frank

wrote:

Good question, but based on my experiences with the DSB sync detectors
in the Drake R8 and the Lowe HF-225, I would have to say that the
modified R-75 worked as well as the 225 and definitely maintained
better lock on signal fades than the R8. So, I would have to say that
it worked properly, at least on the one I modified. The best sync
detectors I've seen are in the Drake SW2 and the Lowe HF-150. They are
SSB selectable.

Frank

I returned the R8 that I bought from Grove in 1991 for $950 because the
sync' was so finicky. I wait about seven years for the R8B, which has a
superb sync' detector. I also have an SW8 with selectable sync'. It
works great.

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