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Expert Stylus Company |
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STYLUS REPLACEMENT SERVICE FOR ALL TYPES OF CARTRIDGE This is a very specialised service and one which was started by our company over 25 years ago. As manufacturers of the largest range of diamond and sapphire styli we can offer clients a very technically sound service. HOW IT WORKS With the very high cost of replacement styli for the more expensive range of magnetic and moving coil cartridges considerable savings can be made by replacing worn diamonds with diamonds of a similar profile and mass. Where damage has been caused to cantilevers, providing the suspension and coils are undamaged, new ones can be fitted. It is necessary in the first instance to carry out a very careful examination of the cantilever system and all other components in order to assess whether the eventual work carried out will prove satisfactory. Once this has been done, you will receive a detailed quotation together wSth our recommendations. GUARANTEE All work carried out is guaranteed and any client not satisfied will have their payment refunded. It is true to say such occurrences are rare as we have a well equipped listening studio with the very latest technology. OUR CHARGES It will be appreciated with so many different makes of cartridge, it is impossible to give a quotation without knowing the model you are using. We are however, familiar with most makes, and if you would care to write or telephone, we shall be able to give costs. PACKAGING When forwarding cartridges or styli please ensure they are packed either in the original packing or in a suitable manner so that no damage can come about during transit. Moving coil cartridges are very easily damaged if inadequately packed. OVERSEAS CLIENTS Apart from stressing the importance of good packaging, it is also essential when forwarding goods to complete the Customs Declaration correctly otherwise delays and unnecessary import duty can be incurred which would have to be charged to the client. Be sure to state the goods are "FOR REPAIR & RETURN". LATERAL CUT 78 R.P.M. Our experience in manufacturing styli to play early acoustical and electrical recordings is extensive. During the last 20 years we have been producing diamonds and sapphires with varying radii and profiles in an effort to find the optimum to reduce surface noise. We have received considerable assistance in our research from record companies, record archives, broadcast companies, private collectors, musicians and universities. Our recommendations for records made within the following perlods are as follows:
Recommended
Sizes Conical
Truncated Elliptical
Truncated Pre
1920 .0040"
(90 microns) .0040 x
.0012" 1920 -
1939 .0035"
(80 microns) .0035 x
.0012" 1939 -
1966 0028" (65 microns) .0028 x
.0009" It will be noted
we supply other sizes of diamond of a smaller radius.
These sizes are at times most useful where records
have not been subjected to continuous playing with
steel needles. The reduced contact area results in a
quieter background. ACOUSTICAL
CUT We manufacture
replacement diamond and sapphire styli for most makes
of phonograph including Edison, Pathe, and Columbia.
The styli can be supplied mounted in bars or,
alternatively, we can re-furbish clients own which we
feel is so much better as it ensures the machine
retains an original part. Pathe sapphires are supplied
mounted in brass shanks. Columbia sapphires can either
be supplied loosely or mounted in aluminium domes
ready for cementing to diaphragms. ELECTRICAL
REPRODUCTION: LATERAL AND VERTICAL Those clients
wishing to play records, discs and cylinders
electrically can do so by using a cartridge fitted
with the correct stylus. It is important the cartridge
will allow tracking weights up to 5 or even 6 grams.
For normal lateral cut records a tracking weight of 3
grams will be adequate. For centre start Pathe discs
and records in poor condition extra weight will be
necessary. It will also be necessary to wire the
cartridge for vertical response only otherwise noise
from the lateral channel will be experienced. This we
carry out for clients. DECIDING WHETHER
TO USE CONICAL OR RI.LIPTICAL TRUNCATED
DIAMONDS The condition of
records will dictate whether to use conical or
elliptical truncated diamonds. Records in good
condition will reproduce with greater analysis and
reduced surface noise if played with elliptical
truncated diamonds. Records that are visually poor in
condition are better suited to conical truncated
diamonds. GUARANTEE The quality
control within our laboratories ensures a finished
product of the highest order. Over the years we have
seen dreadful examples of workmanship which can only
result in the destruction of precious cylinders and
records. Do bear in mind, diamond and sapphire
components cannot be manufactured cheaply and it
really is false economy to use inferior
materials. |
Expert Stylus Company |