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Old 10-12-2012, 09:44 PM
Mal Fuller Mal Fuller is offline
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Join Date: Jun 2011
Posts: 110
I always felt that Sylvania & GE manufactured 6GH8s were superior to RCA and Japanese manufactured versions.
EIA code 188-5 (GE - Owensboro KY) and EIA code 312 (Sylvania). Even RCA chose Sylvania made tubes for the critical color oscillator circuit. RCA branded tubes that were made by Sylvania use green ink for their envelope branding, instead of orange.
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