https://classiccurrents.com/products/1-tested-ken-rad-12sf5-tube-with-original-box-date-code-743-triode-vacuum-tube 2026-07-28T07:12:00-04:00 daily https://cdn.shopify.com/s/files/1/0788/5999/3343/files/IMG_4864.jpg?v=1784671400 (1) Tested Ken Rad 12SF5 Tube with Original Box Date Code 743 Triode Vacuum Tube https://classiccurrents.com/products/1-tested-zenith-6dt6a-tube-with-box-date-code-918-6dt6-a-pentode-vacuum-tube 2026-07-28T07:12:00-04:00 daily https://cdn.shopify.com/s/files/1/0788/5999/3343/files/IMG_4878.jpg?v=1784671766 (1) Tested Zenith 6DT6A Tube with Box Date Code 918 6DT6 A Pentode Vacuum Tube https://classiccurrents.com/products/1-tested-philco-starlight-12d4-tube-with-box-date-code-dbw-rectifier-tube-b 2026-07-28T07:12:00-04:00 daily https://cdn.shopify.com/s/files/1/0788/5999/3343/files/IMG_4904.jpg?v=1784671883 (1) Tested Philco Starlight 12D4 Tube with Box Date Code DBW Rectifier Tube (b) https://classiccurrents.com/products/1-tested-rca-6cy5-tube-with-box-date-code-gp-sharp-cutoff-tetrode-vacuum-tube 2026-07-28T07:12:00-04:00 daily https://cdn.shopify.com/s/files/1/0788/5999/3343/files/IMG_4916.jpg?v=1784672063 (1) Tested RCA 6CY5 Tube with Box Date Code GP Sharp Cutoff Tetrode Vacuum Tube https://classiccurrents.com/products/1-tested-philco-25ax4gt-tube-and-box-date-code-56-26-25ax4-gt-vacuum-tube-b 2026-07-28T07:12:00-04:00 daily https://cdn.shopify.com/s/files/1/0788/5999/3343/files/IMG_4929.jpg?v=1784672170 (1) Tested Philco 25AX4GT Tube and Box Date Code 56-26 25AX4 GT Vacuum Tube (b) https://classiccurrents.com/products/1-tested-rca-6cs7-tube-and-box-date-code-cf-rca-double-triode-vacuum-tube 2026-07-28T07:12:00-04:00 daily https://cdn.shopify.com/s/files/1/0788/5999/3343/files/IMG_4941.jpg?v=1784672322 (1) Tested 1968 RCA 6CS7 Tube and Box Date Code CF RCA Double Triode Vacuum Tube https://classiccurrents.com/products/tested-matched-pair-national-union-7a8-tubes-and-boxes-codes-lu-octode-converter 2026-07-28T07:12:00-04:00 daily https://cdn.shopify.com/s/files/1/0788/5999/3343/files/IMG_4962.jpg?v=1784749424 Tested Matched Pair National Union 7A8 Tubes and Boxes Codes LU Loctal Tubes (a) https://classiccurrents.com/products/1-tested-raytheon-6as5-tube-with-box-made-in-taiwan-date-code-e14-pentode-tube 2026-07-28T07:12:00-04:00 daily https://cdn.shopify.com/s/files/1/0788/5999/3343/files/IMG_4979.jpg?v=1784751721 (1) Tested Raytheon 6AS5 Tube with Box Made in Taiwan Date Code E14 Pentode Tube https://classiccurrents.com/products/1-tested-ge-12v6gt-tube-with-box-code-fi-general-electric-beam-power-tube 2026-07-28T07:12:00-04:00 daily https://cdn.shopify.com/s/files/1/0788/5999/3343/files/IMG_5026.jpg?v=1784753763 (1) Tested GE 12V6GT Tube with Box Code FI General Electric Beam Power Tube https://classiccurrents.com/products/1-tested-rca-6bf5-tube-with-box-date-code-mt-pentode-vacuum-tube 2026-07-28T07:12:00-04:00 daily https://cdn.shopify.com/s/files/1/0788/5999/3343/files/IMG_5021.jpg?v=1784753958 (1) Tested 1962 RCA 6BF5 Tube with Box Date Code MT Pentode Vacuum Tube https://classiccurrents.com/products/1-tested-sylvania-5y3gt-tube-red-letters-with-box-fe-ddf-full-wave-rectifier 2026-07-28T07:12:00-04:00 daily https://cdn.shopify.com/s/files/1/0788/5999/3343/files/IMG_5015.jpg?v=1784754233 (1) Tested Sylvania 1971 5Y3GT Tube Red Letters & Box fe DDF Full Wave Rectifier https://classiccurrents.com/products/1-tested-strong-ge-6cm6-tube-with-box-date-code-jf-power-amplifier-tetrode-b 2026-07-28T07:12:00-04:00 daily https://cdn.shopify.com/s/files/1/0788/5999/3343/files/IMG_5006.jpg?v=1784756671 (1) Tested Strong GE 6CM6 Tube with Box Date Code JF Power Amplifier Tetrode (b) https://classiccurrents.com/products/1-tested-rca-32l7gt-tube-with-box-black-glass-date-code-643-32l7-gt-tube 2026-07-28T07:12:00-04:00 daily https://cdn.shopify.com/s/files/1/0788/5999/3343/files/IMG_4998.jpg?v=1784757097 (1) Tested 1956 RCA 32L7GT Tube with Box Black Glass Date Code 643 32L7 GT Tube https://classiccurrents.com/products/1-tested-zenith-6z10-6j10-tube-with-box-date-code-822-power-pentode-tube 2026-07-28T07:12:00-04:00 daily https://cdn.shopify.com/s/files/1/0788/5999/3343/files/IMG_4992.jpg?v=1784757416 (1) Tested Zenith 6Z10 6J10 Tube with Box Date Code 822 Power Pentode Tube https://classiccurrents.com/products/1-tested-rca-6hr6-tube-with-box-date-code-aj-semi-remote-cutoff-pentode-tube 2026-07-28T07:12:00-04:00 daily https://cdn.shopify.com/s/files/1/0788/5999/3343/files/IMG_4985.jpg?v=1784757771 (1) Tested 1964 RCA 6HR6 Tube with Box Code AJ Semi Remote Cutoff Pentode Tube https://classiccurrents.com/products/1-tested-national-union-7a8-tube-with-box-date-code-lu-loctal-octode-converter 2026-07-28T07:12:00-04:00 daily https://cdn.shopify.com/s/files/1/0788/5999/3343/files/IMG_4970.jpg?v=1784758153 (1) Tested National Union 7A8 Tube with Box Code LU Loctal Octode Converter (b) https://classiccurrents.com/products/1-tested-sylvania-6z10-6j10-tube-with-box-power-pentode-vacuum-6z10-tube-a 2026-07-28T07:12:00-04:00 daily https://cdn.shopify.com/s/files/1/0788/5999/3343/files/IMG_5054.jpg?v=1784842399 (1) Tested Sylvania 6Z10 6J10 Tube with Box Power Pentode 6Z10 Tube (a) https://classiccurrents.com/products/1-tested-sylvania-6af4a-tube-red-letters-with-box-code-lb-avv-triode-6af4-tube 2026-07-28T07:12:00-04:00 daily https://cdn.shopify.com/s/files/1/0788/5999/3343/files/IMG_5068.jpg?v=1784842692 (1) Tested 1964 Sylvania 6AF4A Tube Red Letters with Box Code lb AVV Triode 6AF4 https://classiccurrents.com/products/1-tested-national-union-7q7-tube-with-box-code-jc-pentagrid-converter-loctal 2026-07-28T07:12:00-04:00 daily https://cdn.shopify.com/s/files/1/0788/5999/3343/files/IMG_5089.jpg?v=1784843438 (1) Tested National Union 7Q7 Tube with Box Code JC Pentagrid Converter Loctal https://classiccurrents.com/products/1-tested-strong-sylvania-6bz6-tube-red-letters-with-box-code-ec-abz-pentode 2026-07-28T07:12:00-04:00 daily https://cdn.shopify.com/s/files/1/0788/5999/3343/files/IMG_5084.jpg?v=1784844099 (1) Tested 1970 Sylvania 6BZ6 Tube Red Letters with Box Code ec ABZ Pentode https://classiccurrents.com/products/1-tested-tung-sol-12sa7gt-tube-with-box-date-code-113-12sa7-gt-converter-tube 2026-07-28T07:12:00-04:00 daily https://cdn.shopify.com/s/files/1/0788/5999/3343/files/IMG_5078.jpg?v=1784845169 (1) Tested Tung Sol 12SA7GT Tube with Box Date Code 113 12SA7 GT Converter Tube https://classiccurrents.com/products/1-tested-rca-6cu5-with-box-date-code-cb-black-plate-beam-power-pentode-tube 2026-07-28T07:12:00-04:00 daily https://cdn.shopify.com/s/files/1/0788/5999/3343/files/IMG_5073.jpg?v=1784845819 (1) Tested 1968 RCA 6CU5 with Box Code CB Black Plate Beam Power Pentode Tube https://classiccurrents.com/products/1-tested-sylvania-6z10-6j10-tube-with-box-code-lf-aao-pentode-6z10-tube-b 2026-07-28T07:12:00-04:00 daily https://cdn.shopify.com/s/files/1/0788/5999/3343/files/IMG_5061.jpg?v=1784846478 (1) Tested 1976 Sylvania 6Z10 6J10 Tube & Box Code lf AAO Pentode 6Z10 Tube (b)