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- Part Number: RT881
- Packaging Size: 6x6x15 cm
- UPC: 4251594901211
TAD recommended this 6550A-STR for the AMPEG SVTs. My SVT was "eating" 6550WEs within a few months. The TAD 6550A does work now since over a year with great power and delivers the best tone I ever achieved from my SVT.
Thanks to TAD for that excellent 6550A-STR and the great support finding the right tubes.