List of vacuum tubes - Wikipedia
6U8A | RCA | TRIODE-PENTODE TUBE At 9 € HT on Electols
Using the Pentode/Triode Tube as the Amplifier/Phase Splitter.
6U8A | CEI | TRIODE-PENTODE TUBE At 7 € HT on Electols
7199 @ The Valve Museum
6U8A Philips ECG JAN NOS. Laboratorio Musicale
6U8A JAN Philips / 7199 Substitute | TubeDepot.com
6GH8A RCA NOS 1968 (14.2/13.2ma)
ONE 7199 Vacuum tube substitute 6U8/6U8A/6KD8 - NOS | eBay
HYYLWJ 2pcs Shanghai 6F2 tube J-class replacement 6U8A ECF82 ECF802 tube : Amazon.co.uk: Toys & Games
Unknown ONE 7199 Vacuum tube substitute 6U8/6U8A/6KD8 - NOS 1960's | Reverb
HYYLWJ 2pcs Shanghai 6F2 tube J-class replacement 6U8A ECF82 ECF802 tube : Amazon.co.uk: Toys & Games
ECF82 / 6U8 substitutes EF86 + PI triode? - The Amp Garage
Nostalgia Air: Tube Substitution for 6U8A
KD Vintage Electronics for sale | eBay
ONE 7199 Vacuum tube substitute 6U8/6U8A/6KD8 - NOS | eBay
6U8A/6KD8/6AX8 SYLVANIA Sharp-Cutoff Pentode Medium-Mu Triode Vintage Miniature Vacuum Tube 9-Pin NOS New Old Stock in Box
6U8, Tube 6U8; Röhre 6U8 ID3778, Triode-Pentode | Radiomuseum.org
6U8A, Tube 6U8A; Röhre 6U8A ID3986, Triode-Pentode | Radiomuseum.org
Preamp tubes
HYYLWJ 2pcs Shanghai 6F2 tube J-class replacement 6U8A ECF82 ECF802 tube : Amazon.co.uk: Toys & Games
Unknown ONE 7199 Vacuum tube substitute 6U8/6U8A/6KD8 - NOS 1960's | Reverb
Tung-Sol 6U8A | TubeDepot.com
