Hammond Solovox Repair, 1949
How To Repair a Hammond Solovox
This article from the June, 1949 issue of Radio-Electronics magazine
gives invaluable contemporary information about repairing the
Hammond Solovox electronic musical instrument.
Unlike most musical instruments, a Solovox has more in common with a
tube radio than a tuba, so the article is written for
radio repairmen of the time. It lists a catalog of common troubles
and the methods for curing them.
As noted in our main Solovox article, the major task in restoring any
Solovox is capacitor replacement. In many cases,
replacing the old capacitors and cleaning the keyswitches and other
controls with DeOxit will bring the instrument back to life.
If recapping and cleaning doesn't do the trick, perhaps this article
has the answer. Notice that there are different versions of the Solovox,
and this article does not cover all of them in detail. Still, any
information is better than none!
The parts most likely to need replacement in a Solovox are capacitors
and resistors. These are readily available from sources listed in
our Parts page. If your Solovox has a defective
proprietary part such as a broken key, the only source would be another
junked Solovox. Hammond stopped making replacement parts for the Solovox
many years ago.
The repair article mentions cleaning electrical contacts with carbon tetrachloride.
This dangerous chemical is no longer readily available. A safe modern
substitute is DeOxit, made by the CAIG company and available from many