Softer shellac in late 78's?
Posted: Tue Dec 31, 2013 9:34 am
Hello!
I seem to remember having heard from Gramophoneshane that a softer blend of shellack was used towards the end of the 78 rpm era, in the U.S., as people were replacing their old equipment with modern, lightweight pickup turntables. In Norway, it seems to me, the use of accoustic portables was common up until the sixties. HMV produced their 102 model until 1961, you know. In accordance whith this, the 78 rpm records here seem equally solid, no matter which period they come from. I would have guessed that this would be the same in low income South America.
The other day I received a batch of records from Argentina. Two of them look to me as thought they are printed in the fifties, although the recordings are older. RCA Victor, with golden letters on a deep algae green colour, which I have never seen before. As they were so well preserved, I decided to try them with a thornwood needle first, as I always do when a record looks brand new. This prodced an immediate greying of the grooves, and the friction even forced the turntable to stop. Then I remembered what Gramophoneshane said about softer shellack in late records.
The records play really well on my modern turntable. There is no more noise where the grooves are greyed than elsewhere. The problem is, I need these records for DJ-ing with my HMV portable, at tango dances. I wonder whether they would play well with a steel needle. The shellack does not feel any different from that of any other record I have. It could be that the problem was with the shape of the groove conflicting with the broad, wooden needle, and that a steel needle would turn out fine, but i dare not try, from fear of destroying them. If they are too soft for wood, what might steel do?
I wonder if any of you have information about the shellac blend in these records and how I should or should not play them?
Best regards,
Erlend
I seem to remember having heard from Gramophoneshane that a softer blend of shellack was used towards the end of the 78 rpm era, in the U.S., as people were replacing their old equipment with modern, lightweight pickup turntables. In Norway, it seems to me, the use of accoustic portables was common up until the sixties. HMV produced their 102 model until 1961, you know. In accordance whith this, the 78 rpm records here seem equally solid, no matter which period they come from. I would have guessed that this would be the same in low income South America.
The other day I received a batch of records from Argentina. Two of them look to me as thought they are printed in the fifties, although the recordings are older. RCA Victor, with golden letters on a deep algae green colour, which I have never seen before. As they were so well preserved, I decided to try them with a thornwood needle first, as I always do when a record looks brand new. This prodced an immediate greying of the grooves, and the friction even forced the turntable to stop. Then I remembered what Gramophoneshane said about softer shellack in late records.
The records play really well on my modern turntable. There is no more noise where the grooves are greyed than elsewhere. The problem is, I need these records for DJ-ing with my HMV portable, at tango dances. I wonder whether they would play well with a steel needle. The shellack does not feel any different from that of any other record I have. It could be that the problem was with the shape of the groove conflicting with the broad, wooden needle, and that a steel needle would turn out fine, but i dare not try, from fear of destroying them. If they are too soft for wood, what might steel do?
I wonder if any of you have information about the shellac blend in these records and how I should or should not play them?
Best regards,
Erlend