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Next in out series of Gibson interesting but not particularly successful innovations is this circuit which was also duplicated in several other Gibson offerings.
To quote from the service manual, pages 83-85:
The GA4RE records music with an electronic pen. The record is made on a film of oil which also serves to lubricate the revolving disc which is the platter for the film. The film is constantly replaced and can never wear out like a magnetic tape. Following the electronic pen are two sensors that reproduce the pattern of electrons for the amplifier. The result is a multiple choice of echo and reverberant sound with a quality never before achieved.
Has anyone ever had the opportunity to use/ service one of these (or the other variant) units? Sounds quite interesting and I'd love more details if anyone has them. Somehow I have trouble imagining how a film of oil would retain it's integrity sufficiently to retain a magnetic sound pattern for even one revolution - must be pretty viscous stuff (or perhaps pretty viscious stuff and the owners got tired of having the "heel" their amplifers [or getting a tech to "heal" there amplifiers - I'm getting bad]).
Rob
To quote from the service manual, pages 83-85:
The GA4RE records music with an electronic pen. The record is made on a film of oil which also serves to lubricate the revolving disc which is the platter for the film. The film is constantly replaced and can never wear out like a magnetic tape. Following the electronic pen are two sensors that reproduce the pattern of electrons for the amplifier. The result is a multiple choice of echo and reverberant sound with a quality never before achieved.
Has anyone ever had the opportunity to use/ service one of these (or the other variant) units? Sounds quite interesting and I'd love more details if anyone has them. Somehow I have trouble imagining how a film of oil would retain it's integrity sufficiently to retain a magnetic sound pattern for even one revolution - must be pretty viscous stuff (or perhaps pretty viscious stuff and the owners got tired of having the "heel" their amplifers [or getting a tech to "heal" there amplifiers - I'm getting bad]).
Rob
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