When new you could probably buy them for 50 cents each.
A bit of history:
“115%/115%!!! MUSEUM TROPHY QUALITY! L@@K made in USA JAN MILITARY ISSUE VT-231 WWII @ 3,000/3,000+ "NOS TESTING" AND "LOOKING" LIKE OUT OF A 1940s TIME-CAPSULE! New Old Stock- 6SN7-GT = VT-231 Dual Triode LONG-Plates Perfect Matched Triodes Tubes. Recommended for:Mikhail Rotenberg’s Singlepower Audio massive SDS XLR amplifier or Cary Audio SLP 05... We are told these were originally sourced from Pearl Harbor Navy Sub base Armory from The Heslar Naval Armory. ANCHOR'S AWAY!”
https://www.ebay.com/itm/NOS-SYLVAN...=item363c1264c7:g:y9oAAOSwiJhbpN9x:rk:30:pf:0
A bit of history:
“115%/115%!!! MUSEUM TROPHY QUALITY! L@@K made in USA JAN MILITARY ISSUE VT-231 WWII @ 3,000/3,000+ "NOS TESTING" AND "LOOKING" LIKE OUT OF A 1940s TIME-CAPSULE! New Old Stock- 6SN7-GT = VT-231 Dual Triode LONG-Plates Perfect Matched Triodes Tubes. Recommended for:Mikhail Rotenberg’s Singlepower Audio massive SDS XLR amplifier or Cary Audio SLP 05... We are told these were originally sourced from Pearl Harbor Navy Sub base Armory from The Heslar Naval Armory. ANCHOR'S AWAY!”
https://www.ebay.com/itm/NOS-SYLVAN...=item363c1264c7:g:y9oAAOSwiJhbpN9x:rk:30:pf:0
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