Open-box matched pair of vintage Svetlana Winged-C EL34 / 6CA7 power tubes, made in Russia.
This pair carries TheTubeStore.com “Perfect Pair 38” identification and was independently tested under identical conditions on my Hickok Model 750 mutual-conductance tube tester.
Hickok 750 Test Results
Tube #1: 8,000 µmhos — 133.3% of reference Tube #2: 8,000 µmhos — 133.3% of reference
Hickok reference Gm: 6,000 µmhos
Gm spread: 0 µmhos Match: 100.0% — exact Gm match
Both tubes test PASS with:
• No shorts/leakage indicated • No gas/grid leakage indicated
Both tubes feature genuine Winged-C markings and matching general construction with double-halo / bowl-style top getters.
The tubes present very cleanly and are being sold as Open Box / Tested. Please review all photographs for the exact tubes, markings, glass, bases and physical condition.
A detailed Hilltop Hi-Fi Electronics matched-pair test record documenting the actual Hickok 750 results is included with the sale.
This is an exceptionally well-matched pair: originally identified as TheTubeStore Perfect Pair 38 and currently measuring an exact 8,000 / 8,000 µmhos — 100.0% Gm match on the Hickok 750.