otdyntub 5AR4 GZ34 Sovtek Russia5AR4/GZ34 Sovtek Russia tube. 5ar4sovtek 5AR4 GZ34 Tesla/JJ Tube5AR4 GZ34 by JJ-Electronic. gz34jj Solid State Plug in Rectifier 5U4 5AR4 5Y3 This is great for those who want to try solid state rectification, without any modifications or soldering. Just plug in, rebias, and enjoy. If you are replacing a 5AR4 let the tubes warm up a little before applying signal. Makes it easy to change between tube and solid state rectification. Solid State Rectifier Direct plug-in replacement for 5AR4, 5U4 and 5Y3 rectifier tubes in amplifiers with center tapped secondary power transformer. Use when less 'sag' is desired in the power supply; just switch back to the tube rectifier when 'sag' is desired. NOTE! Because there is no warm up of a rectifier tube when using this solid state device, it is critical that a standby switch is used that will allow the power tube filaments to warm up and generate an electron 'cloud' around the cathode before high voltage is applied. This will prevent 'cathode stripping' in the power tubes. It is a good idea to use a standby switch when using vacuum tube rectification, but it is critical when using solid state rectification. ssr$34.95 6AN8A Tube6AN8/6AN8A NOS tubes. Various brands. 6an8a$24.95 6AQ8 ECC85 Tube 6aq8ecc85$21.95 6AT8A NOS Tube 6at8$2.95 6BA6 EF93 GE tube6BA6 Tube Made by GE 6ba6$8.95 6BL8 ECF80 TubeVarious Brands 6bl8ecf80$29.95 12DW7 7247 ECC832 JJ-Tesla Tube12DW7 7247 JJ/Tesla tube made in Slovak Republic. Same style of construction as their 12AX7/ECC83. 12dw77247ecc832jj$29.95 12DW7 7247 Ei Yugoslavia TubeNO LONGER A STOCKED ITEM 12DW7 7247 Standard Ei tube made in Yugoslavia. Their copy of the old Telefunken flat plate model. 12dw77247ei-elite$12.95 12X4 Rectifier Tube12x4 tube, used in the Dynaco PAS Preamps. 12x4$29.95 7199 Philips ECG (USA) TubeNO LONGER A STOCKED ITEM 7199philips$37.95 6GH8A to 7199 Tube Socket Adapter Single 6GH8A to 7199 tube socket adapter. Simply plug these adapters into a socket that is pined-out for a 7199 tube and insert a 6GH8A tube into the adapter. This is intended to make an easy transition to the inexpensive 6GH8A tube as a direct plug-in adapter to replace the now expensive and hard to find 7199 tube. This will work for any tube amp that uses the 7199 tube. Same width dimensions as the tube, so they fit in shielded sockets nicely. 7199converter$32.95 6GH8A to 7199 Tube Socket Adapter Pair Pair of 6GH8A to 7199 tube socket adapters. Simply plug these adapters into a socket that is pined-out for a 7199 tube and insert a 6GH8A tube into the adapter. This is intended to make an easy transition to the inexpensive 6GH8A tube as a direct plug-in adapter to replace the now expensive and hard to find 7199 tube. This will work for any tube amp that uses the 7199 tube. Same width dimensions as the tube, so they fit in shielded sockets nicely. 7199converterpair$59.95 Triode, USA Customer Service M-F 9AM-4PM CT 1-800-774-3201 Email us Anytime: questions@triodestore.com