6060, BRIMAR, SPECIAL QUALITY ECC81, TRUSTWORTHY, OCTOBER 1962 FOOTSCRAY PRODUCTION
The 6060 variant of the ECC81 is a premium device by STC- Brimar whose design is derived from 12AT7 but capable of operating up to 500 MHz under severe vibration and shock conditions. Very rigid electrode cage, very low microphonic, dry neutral sounding with some preferring this over the GEC A2900.
