Electro-Harmonix

New Plate Current Matched Quad of Electro-Harmonix 6550 Ceramic Vacuum Tubes The 6550EH is one of the finest new production tubes for any amp using 6550 or KT88. The 6550EH offers the maximum power...

New Gain Matched Quintet of Electro-Harmonix 12DW7 / ECC832 Vacuum Tubes Superior dual triode preamp tube. One triode is a high-mu 12AX7 equivalent, and the other a medium-mu 12AU7, combined in this...

New Gain Matched Quad of Electro-Harmonix 12DW7 / ECC832 Vacuum Tubes Superior dual triode preamp tube. One triode is a high-mu 12AX7 equivalent, and the other a medium-mu 12AU7, combined in this...

New Gain Matched Trio of Electro-Harmonix 12DW7 / ECC832 Vacuum Tubes Superior dual triode preamp tube. One triode is a high-mu 12AX7 equivalent, and the other a medium-mu 12AU7, combined in this...

New Gain Matched Pair of Electro-Harmonix 12DW7 / ECC832 Vacuum Tubes Superior dual triode preamp tube. One triode is a high-mu 12AX7 equivalent, and the other a medium-mu 12AU7, combined in this...

New Gain Tested Electro-Harmonix 12DW7 / ECC832 Vacuum Tube Superior dual triode preamp tube. One triode is a high-mu 12AX7 equivalent, and the other a medium-mu 12AU7, combined in this dual triode...

New Gain Matched Quad of Electro-Harmonix 7025 (12AX7) Vacuum Tubes Electro-Harmonix has released a low noise, low microphonic version of the 12AX7 that meets all specifications required for the tube...

New Gain Matched Trio of Electro-Harmonix 7025 (12AX7) Vacuum Tubes Electro-Harmonix has released a low noise, low microphonic version of the 12AX7 that meets all specifications required for the tube...

New Gain Matched Pair of Electro-Harmonix 7025 (12AX7) Vacuum Tubes Electro-Harmonix has released a low noise, low microphonic version of the 12AX7 that meets all specifications required for the tube...

New Electro-Harmonix 7025 (12AX7) Vacuum Tube Electro-Harmonix has released a low noise, low microphonic version of the 12AX7 that meets all specifications required for the tube to be designated 7025...

New Matched Quad of Electro-Harmonix 6CA4 / EZ81 Vacuum Tubes The most reliable and best sounding small rectifier on the market. The 6CA4, 6CA4A and EZ81 are all the same tubes / compatible. An...

New Matched Pair of Electro-Harmonix 6CA4 / EZ81 Vacuum Tubes The most reliable and best sounding small rectifier on the market. The 6CA4, 6CA4A and EZ81 are all the same tubes / compatible. An...

New Electro-Harmonix 6CA4 / EZ81 Vacuum Tube The most reliable and best sounding small rectifier on the market. The 6CA4, 6CA4A and EZ81 are all the same tubes / compatible. An excellent choice for...

New Gain Matched Quad of Electro-Harmonix 6SN7 Gold Pins Vacuum Tubes There is finally a new, high quality, and low noise option for 6SN7s. Akin to the RCA red base 5692, the Electro-Harmonix 6SN7...

New Gain Matched Trio of Electro-Harmonix 6SN7 Gold Pins Vacuum Tubes There is finally a new, high quality, and low noise option for 6SN7s. Akin to the RCA red base 5692, the Electro-Harmonix 6SN7...

New Gain Matched Pair of Electro-Harmonix 6SN7 Gold Pins Vacuum Tubes There is finally a new, high quality, and low noise option for 6SN7s. Akin to the RCA red base 5692, the Electro-Harmonix 6SN7...

New Gain Tested Electro-Harmonix 6SN7 Gold Pins Vacuum Tube There is finally a new, high quality, and low noise option for 6SN7s. Akin to the RCA red base 5692, the Electro-Harmonix 6SN7 features a...

New Matched Quad of Electro-Harmonix 300B Gold Grid & Pins Vacuum Tubes This new production EH 300B Gold Grid offers the same specs of vintage Western Electric 300Bs like wide-shoulder ST shape,...

New Matched Pair of Electro-Harmonix 300B Gold Grid & Pins Vacuum Tubes This new production EH 300B Gold Grid offers the same specs of vintage Western Electric 300Bs like wide-shoulder ST shape,...

New Electro-Harmonix 300B Gold Grid & Pins Vacuum Tube This new production EH 300B Gold Grid offers the same specs of vintage Western Electric 300Bs like wide-shoulder ST shape, 40 watt plate...

New Matched Quad of Electro-Harmonix 2A3 Gold Grid Vacuum Tubes Modeled after the original 2A3 type (such as the RCA 2A3 from the 1930s), the Electro-Harmonix 2A3 Gold Grid tubes feature a...

New Matched Pair of Electro-Harmonix 2A3 Gold Grid Vacuum Tubes Modeled after the original 2A3 type (such as the RCA 2A3 from the 1930s), the Electro-Harmonix 2A3 Gold Grid tubes feature a...

New Electro-Harmonix 2A3 Gold Grid Vacuum Tube Modeled after the original 2A3 type (such as the RCA 2A3 from the 1930s), the Electro-Harmonix 2A3 Gold Grid tubes feature a gold-plated grid, gold...

New Gain Matched Quad of Electro-Harmonix 12BH7 Gold Pins Vacuum Tubes The newly produced Electro-Harmonix 12BH7 boasts twin triodes with 3.5 watts of dissipation per plate. An excellent...

New Gain Matched Trio of Electro-Harmonix 12BH7 Gold Pins Vacuum Tubes The newly produced Electro-Harmonix 12BH7 boasts twin triodes with 3.5 watts of dissipation per plate. An excellent...

New Gain Matched Pair of Electro-Harmonix 12BH7 Gold Pins Vacuum Tubes The newly produced Electro-Harmonix 12BH7 boasts twin triodes with 3.5 watts of dissipation per plate. An excellent...

New Gain Tested Electro-Harmonix 12BH7 Gold Pins Vacuum Tube The newly produced Electro-Harmonix 12BH7 boasts twin triodes with 3.5 watts of dissipation per plate. An excellent replacement for any...

New Gain Matched Quad of Electro-Harmonix 12AT7 / ECC81 Gold Pins Vacuum Tubes The large plate format 12AT7 has a slightly lower voltage gain than its 12AX7 counterpart, with a higher plate...

New Gain Matched Trio of Electro-Harmonix 12AT7 / ECC81 Gold Pins Vacuum Tubes The large plate format 12AT7 has a slightly lower voltage gain than its 12AX7 counterpart, with a higher plate...

New Gain Matched Pair of Electro-Harmonix 12AT7 / ECC81 Gold Pins Vacuum Tubes The large plate format 12AT7 has a slightly lower voltage gain than its 12AX7 counterpart, with a higher plate...

New Gain Tested Electro-Harmonix 12AT7 / ECC81 Gold Pins Vacuum Tube The large plate format 12AT7 has a slightly lower voltage gain than its 12AX7 counterpart, with a higher plate current, making...

New Matched Octet of Electro-Harmonix 6SN7 Vacuum Tubes There is finally a new, high quality, and low noise option for 6SN7s. Akin to the RCA red base 5692, the Electro-Harmonix 6SN7 features a...

New Matched Quintet of Electro-Harmonix 6SN7 Vacuum Tubes There is finally a new, high quality, and low noise option for 6SN7s. Akin to the RCA red base 5692, the Electro-Harmonix 6SN7 features a...

New Gain Matched Quad of Electro-Harmonix 6SN7 Vacuum Tubes There is finally a new, high quality, and low noise option for 6SN7s. Akin to the RCA red base 5692, the Electro-Harmonix 6SN7 features a...

New Gain Matched Trio of Electro-Harmonix 6SN7 Vacuum Tubes There is finally a new, high quality, and low noise option for 6SN7s. Akin to the RCA red base 5692, the Electro-Harmonix 6SN7 features a...

New Gain Matched Pair of Electro-Harmonix 6SN7 Vacuum Tubes There is finally a new, high quality, and low noise option for 6SN7s. Akin to the RCA red base 5692, the Electro-Harmonix 6SN7 features a...

New Gain Tested Electro-Harmonix 6SN7 Vacuum Tube There is finally a new, high quality, and low noise option for 6SN7s. Akin to the RCA red base 5692, the Electro-Harmonix 6SN7 features a...

New Gain Matched Quad of Electro-Harmonix 12BH7 Vacuum Tubes The newly produced Electro-Harmonix 12BH7 boasts twin triodes with 3.5 watts of dissipation per plate. An excellent replacement for any...

New Gain Matched Trio of Electro-Harmonix 12BH7 Vacuum Tubes The newly produced Electro-Harmonix 12BH7 boasts twin triodes with 3.5 watts of dissipation per plate. An excellent replacement for any...

New Gain Matched Pair of Electro-Harmonix 12BH7 Vacuum Tubes The newly produced Electro-Harmonix 12BH7 boasts twin triodes with 3.5 watts of dissipation per plate. An excellent replacement for any...

New Gain Tested Electro-Harmonix 12BH7 Vacuum Tube The newly produced Electro-Harmonix 12BH7 boasts twin triodes with 3.5 watts of dissipation per plate. An excellent replacement for any NOS or...

New Gain Matched Trio of Electro-Harmonix 12AT7 / ECC81 Vacuum Tubes The large plate format 12AT7 has a slightly lower voltage gain than its 12AX7 counterpart coupled with a higher plate current -...

New Gain Matched Pair of Electro-Harmonix 12AT7 / ECC81 Vacuum Tubes The large plate format 12AT7 has a slightly lower voltage gain than its 12AX7 counterpart coupled with a higher plate current -...

New Gain Tested Electro-Harmonix 12AT7 / ECC81 Vacuum Tube The large plate format 12AT7 has a slightly lower voltage gain than its 12AX7 counterpart coupled with a higher plate current - making it...

New Plate Current Matched Octet of Electro-Harmonix 7868 Vacuum Tubes Thanks to Electro-Harmonix we have this wonderful new production 7868. This is the one and only new production 7868 currently...

New Plate Current Matched Sextet of Electro-Harmonix 7868 Vacuum Tubes Thanks to Electro-Harmonix we have this wonderful new production 7868. This is the one and only new production 7868 currently...

New Plate Current Matched Quad of Electro-Harmonix 7868 Vacuum Tubes Thanks to Electro-Harmonix we have this wonderful new production 7868. This is the one and only new production 7868 currently...

New Plate Current Matched Pair of Electro-Harmonix 7868 Vacuum Tubes  Thanks to Electro-Harmonix we have this wonderful new production 7868. This is the one and only new production 7868...

New Plate Current Tested Electro-Harmonix 7868 Vacuum Tube Thanks to Electro-Harmonix we have this wonderful new production 7868. This is the one and only new production 7868 currently being made...

New Matched Pair of Electro-Harmonix 6H30Pi GOLD PINS Vacuum Tubes The Electro-Harmonix 6H30Pi is an excellent and well-rounded preamp tube. With gold plates pins, they will never corrode. All of...

New Electro-Harmonix 6H30Pi Vacuum Tube The Electro-Harmonix 6H30Pi is an excellent and well-rounded preamp tube. With gold plates pins, they will never corrode. All of Electro-Harmonix gold pin...

New Gain Matched Pair of Electro-Harmonix 6922 / E88CC GOLD PINS Vacuum Tubes This is the same tube as the standard Electro-Harmonix 6922 with a few differences. The pins are plated with gold to...

New Gain Tested Electro-Harmonix 6922 / E88CC GOLD PINS Vacuum Tube This is the same tube as the standard Electro-Harmonix 6922 with a few differences. The pins are plated with gold to prevent...

New Gain Matched Quad of Electro-Harmonix 12AU7 / ECC82 GOLD PINS Vacuum Tubes This is the same tube as the standard Electro-Harmonix 12AU7 with a few big differences. The pins are plated with gold...

New Gain Matched Trio of Electro-Harmonix 12AU7 / ECC82 GOLD PINS Vacuum Tubes This is the same tube as the standard Electro-Harmonix 12AU7 with a few big differences. The pins are plated with gold...

New Gain Matched Pair of Electro-Harmonix 12AU7 / ECC82 GOLD PINS Vacuum Tubes This is the same tube as the standard Electro-Harmonix 12AU7 with a few big differences. The pins are plated with gold...

New Gain Tested Electro-Harmonix 12AU7 / ECC82 GOLD PINS Vacuum Tubes This is the same tube as the standard Electro-Harmonix 12AU7 with a few big differences. The pins are plated with gold to prevent...

New Gain Matched Octet of Electro-Harmonix 12AX7 / ECC83 GOLD PINS Vacuum Tubes This is the same tube as the Electro-Harmonix 12AX7 with a few big differences. The pins are plated with gold to...

New Gain Matched Quad of Electro-Harmonix 12AX7 / ECC83 GOLD PINS Vacuum Tubes This is the same tube as the Electro-Harmonix 12AX7 with a few big differences. The pins are plated with gold to prevent...

New Gain Matched Trio of Electro-Harmonix 12AX7 / ECC83 GOLD PINS Vacuum Tubes This is the same tube as the Electro-Harmonix 12AX7 with a few big differences. The pins are plated with gold to prevent...

New Gain Matched Pair of Electro-Harmonix 12AX7 / ECC83 GOLD PINS Vacuum Tube This is the same tube as the Electro-Harmonix 12AX7 with a few big differences. The pins are plated with gold to prevent...

New Gain Tested Electro-Harmonix 12AX7 / ECC83 GOLD PINS Vacuum Tubes This is the same tube as the Electro-Harmonix 12AX7 with a few big differences. The pins are plated with gold to prevent...

New Gain Matched Quad of Electro-Harmonix EF86 (6267) Vacuum Tubes There is finally a new production EF86 and a great audio pentode for many different applications. The vintage EF86s, while having...

New Gain Matched Pair of Electro-Harmonix EF86 (6267) Vacuum Tubes There is finally a new production EF86 and a great audio pentode for many different applications. The vintage EF86s, while having...

New Gain Tested Electro-Harmonix EF86 (6267) Vacuum Tube There is finally a new production EF86 and a great audio pentode for many different applications. The vintage EF86s, while having great tone,...

New Plate Current Matched Quad of Electro-Harmonix 6973 Vacuum Tubes Thanks to Electro-Harmonix the 6973 is finally affordable and easy to find! This tube has long caused trouble as the originals are...

New Plate Current Matched Pair of Electro-Harmonix 6973 Vacuum Tubes Thanks to Electro-Harmonix the 6973 is finally affordable and easy to find! This tube has long caused trouble as the originals are...

New Plate Current Tested Electro-Harmonix 6973 Vacuum Tube Thanks to Electro-Harmonix the 6973 is finally affordable and easy to find! This tube has long caused trouble as the originals are so scarce...

New Plate Current Matched Octet of Electro-Harmonix 6L6GC Vacuum Tubes Modeled after the vintage RCA 6L6GC black plate, the 6L6EH features large plate dimensions and improved grid structure for...

New Plate Current Matched Sextet of Electro-Harmonix 6L6GC Vacuum Tubes Modeled after the vintage RCA 6L6GC black plate, the 6L6EH features large plate dimensions and improved grid structure for...

New Plate Current Matched Quad of Electro-Harmonix 6L6GC Vacuum Tubes Modeled after the vintage RCA 6L6GC black plate, the 6L6EH features large plate dimensions and improved grid structure for...

New Plate Current Matched Pair of Electro-Harmonix 6L6GC Vacuum Tubes Modeled after the vintage RCA 6L6GC black plate, the 6L6EH features large plate dimensions and improved grid structure for...

New Plate Current Tested Electro-Harmonix 6L6GC Vacuum Tube Modeled after the vintage RCA 6L6GC black plate, the 6L6EH features large plate dimensions and improved grid structure for increased power...

New Plate Current Matched Octet of Electro-Harmonix KT90 Vacuum Tubes This tube has a bit more power than a KT88 but with the classic warm, bass-drenched sound of an EL34. The tube really is the best...

New Plate Current Matched Quad of Electro-Harmonix KT90 Vacuum Tubes This tube has a bit more power than a KT88 but with the classic warm, bass-drenched sound of an EL34. The tube really is the best...

New Plate Current Matched Pair of Electro-Harmonix KT90 Vacuum Tubes This tube has a bit more power than a KT88 but with the classic warm, bass-drenched sound of an EL34. The tube really is the best...

New Plate Current Tested Electro-Harmonix KT90 Vacuum Tubes This tube has a bit more power than a KT88 but with the classic warm, bass-drenched sound of an EL34. The tube really is the best of both...

New Plate Current Matched Octet of Electro-Harmonix KT88 Vacuum Tubes The Electro-Harmonix KT88 is different than the Electro-Harmonix 6550. While they are both great tubes, the KT88 version is...

New Plate Current Matched Quad of Electro-Harmonix KT88 Vacuum Tubes The Electro-Harmonix KT88 is different than the Electro-Harmonix 6550. While they are both great tubes, the KT88 version is...

New Plate Current Matched Pair of Electro-Harmonix KT88 Vacuum Tubes The Electro-Harmonix KT88 is different than the Electro-Harmonix 6550. While they are both great tubes, the KT88 version is...

New Plate Current Tested Electro-Harmonix KT88 Vacuum Tube The Electro-Harmonix KT88 is different than the Electro-Harmonix 6550. While they are both great tubes, the KT88 version is modeled after...

New Plate Current Matched Octet of Electro-Harmonix EL84 (6BQ5) Vacuum Tubes Finally, an Electro-Harmonix version of the EL84 power tube. Expect them to take the heat in AC30 amps. Electro-Harmonix...

New Plate Current Matched Sextet of Electro-Harmonix EL84 (6BQ5) Vacuum Tubes Finally, an Electro-Harmonix version of the EL84 power tube. Expect them to take the heat in AC30 amps. Electro-Harmonix...

New Plate Current Matched Quad of Electro-Harmonix EL84 (6BQ5) Vacuum Tubes Finally, an Electro-Harmonix version of the EL84 power tube. Expect them to take the heat in AC30 amps. Electro-Harmonix...

New Plate Current Matched Pair of Electro-Harmonix EL84 (6BQ5) Vacuum Tubes Finally, an Electro-Harmonix version of the EL84 power tube. Expect them to take the heat in AC30 amps. Electro-Harmonix...

New Plate Current Tested Electro-Harmonix EL84 (6BQ5) Vacuum Tube Finally, an Electro-Harmonix version of the EL84 power tube. Expect them to take the heat in AC30 amps. Electro-Harmonix says this...

New Gain Matched Octet of Electro-Harmonix EL34 Vacuum Tubes The Electro-Harmonix EL34EH is extremely musical and predictable with a sound that is rich, smooth, and detailed without being edgy. It is...

New Gain Matched Sextet of Electro-Harmonix EL34 Vacuum Tubes The Electro-Harmonix EL34EH is extremely musical and predictable with a sound that is rich, smooth, and detailed without being edgy. It...

New Plate Current Matched Quad of Electro-Harmonix EL34 Vacuum Tubes The Electro-Harmonix EL34EH is extremely musical and predictable with a sound that is rich, smooth, and detailed without being...

New Plate Current Matched Pair of Electro-Harmonix EL34 Vacuum Tube The Electro-Harmonix EL34EH is extremely musical and predictable with a sound that is rich, smooth, and detailed without being edgy...

New Plate Current Tested Electro-Harmonix EL34 Vacuum Tube The Electro-Harmonix EL34EH is extremely musical and predictable with a sound that is rich, smooth, and detailed without being edgy. It is...

New Plate Current Matched Octet of Electro-Harmonix 6V6 (6V6GT) Vacuum Tubes The all new 6V6EH combines a specially developed cathode coating, careful alignment of the grid, and tri-alloy plate...

New Plate Current Matched Sextet of Electro-Harmonix 6V6 (6V6GT) Vacuum Tubes The all new 6V6EH combines a specially developed cathode coating, careful alignment of the grid, and tri-alloy plate...

New Plate Current Matched Quad of Electro-Harmonix 6V6 (6V6GT) Vacuum Tubes The all new 6V6EH combines a specially developed cathode coating, careful alignment of the grid, and tri-alloy plate...

New Plate Current Matched Pair of Electro-Harmonix 6V6 (6V6GT) Vacuum Tubes The all new 6V6EH combines a specially developed cathode coating, careful alignment of the grid, and tri-alloy plate...

New Plate Current Tested Electro-Harmonix 6V6 (6V6GT) Vacuum Tube The all new 6V6EH combines a specially developed cathode coating, careful alignment of the grid, and tri-alloy plate material to...

New Matched Quad of Electro-Harmonix 6BM8 (ECL82) Vacuum Tubes The world's only new production 6BM8 featuring a more robust plate structure for better sound. A fairly obscure tube but popular enough...