Woo Audio 6GL7/6EM7/6DN7 with dual 6GL7->6DE7 Teflon tube adapters – Addicted To Audio
VinylSavor: Tube of the Month : The 6DN7
6DN7 Double Triode Tube. Used as a vertical deflection oscillator and amplifier in TV receivers. MFR: RCA, Philco. SKU: 6DN7. New old stock. No longer available for export.