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  1. 50W 6L6 (6P7S) how to replace tube ccs for solid state?
  2. Star Grounding for a Line Stage Tube Preamp
  3. ID Kit Amp Help. K-12 Tube Amp or Similar?
  4. Are they still making Golden Dragon?
  5. About LL1660/18mA
  6. ST-120 tube set
  7. Newb seeks to drive DVC 4+4 ohm 500w RMS subwoofer with tubes.
  8. The 33 Amplifier
  9. Build Your Own Vacuum Tubes
  10. Can Anyone Tell Me What This Pot Does in AN Soro?
  11. Which high-voltage MOSFET for source follower?
  12. A Practical Circlotron You Can Build
  13. Noob questions
  14. JohnBlue TL66 Monoblocks hum problem. Help please
  15. ECL82 SE 1,8W
  16. RH slayer
  17. Cary SLP-90 preamp power supply
  18. phase splitter with low distortion
  19. First PSU Capacitor
  20. Chinese tubes
  21. SE class A2
  22. Dynaco MKIV 7199 driver circuit
  23. Someone out there....type of tube ?
  24. admiral 5t4a
  25. Pentode Screen Resistance (rs) Estimation Example
  26. Grounding linstage help
  27. What is this tube?
  28. Do 300b tube have a "guide pin"
  29. Effect of Weak Mains Power
  30. Using dht self bias resistor to lift idht front end heater
  31. Philips EL6411/01 amplifier
  32. Quad II output transformer
  33. Mosfet or other semiconductor substitute for cathodyne?
  34. 6SN7 preamp tube alternative with less gain?
  35. Hagerman Cornet Octal planning help and build
  36. output transformer opposing windings/ please explain
  37. Preamp Transformer overheats
  38. Can't identify this tube?
  39. 6SN7 pin 4 signal input
  40. Help - Tube PSU Design
  41. Little help for a newbie?
  42. Has anyone built this phono stage you can buy on ebay as a circuit board.
  43. pl504 Vacuum tube
  44. Tubes in the Unballancer
  45. Quad II Amplifier KT66 Valves/Tubes and Carbon Composition Resistors
  46. ecc88 preamp
  47. Tube socket center post
  48. Troubleshooting bias of old diy amp with Acrosound TO-300 transformer
  49. Dynaco Mark III with noisy transformer, making hum.
  50. Power amplifier EL 34
  51. Replace 6SN7 to E88CC on HP amp 90VDC plate capable?
  52. 1p24b Russian tube
  53. Tube power supply
  54. Tube-O-Philes, Please help with this chassis search
  55. WOW, I want one !!!
  56. What is this? Valve Amp?
  57. CCS instead of a resistor in the cathode of a cathode follower?
  58. Please comment on D3a tube testing
  59. ID tube amp kit 8 watts stereo.. unsure what tubes to use
  60. Mixed bias for 6336a or 6AS7 output tubes?
  61. Vintage Tube Amp kit - Can it be refurbished?
  62. Any experience or opinion about 300B/EL34 Chinese DIY Kit ...
  63. SE (UL ?) HI FI project needs help
  64. Can anyone verify this math? MC 2205 Watt Scale
  65. Generic design question for Pentode CCS
  66. Using big power tubes as buffer?
  67. Reason for tube converter
  68. Valve Mosfet Hybrids: a solution
  69. Protecting Plitron OPT
  70. DHT line stage 26, 01a or 101d
  71. Tube manufacturers
  72. Pinnacle Datasheets
  73. Tube preamp
  74. Can I use 1.1 instead of .47
  75. Project: Add a DAC to Pete Millett's low voltage hybrid tube amp
  76. Speakers for S5 K-16LS Kit
  77. Inexpensive B+ Batteries
  78. Leak Stereo 20 Capacitor Replacement Question
  79. Dynaco Mark IV exploding bias filter capacitor
  80. Anyone familiar with the Raphaelite sinovt 2a3-845
  81. Building monoblocks, go Dynaco MKIII or.....?
  82. Priboi (Surf :d) output transformer possible problem
  83. replacing ECC83 with ECC82 in stereo amp
  84. Counterpoint SA-5000 FET Buffer
  85. C3M 300B SET build, input appreciated.
  86. K12G Quiet Channel
  87. Weird "holes" in getter
  88. Radiotron A530 6J7G-6V6G-2A3 PP Amp
  89. Tube Identification
  90. Can i sub a 50K for a 100K volume control?
  91. Are the 12B4 and 12b4A interchangable?
  92. SE or PSE amplifier with 6N6P driving the 300B tube
  93. About 300B SE heater w/t Coleman regulator
  94. Should my TVC x formers be input or output
  95. Preamp Chassis Layout Advice
  96. Russian Audio Tubes
  97. SE UL EL 300 / ECC 83
  98. Grid Chokes
  99. Pot for project test
  100. Interpreting "Horizontal Osc. Service"
  101. My Take on a DIY Valve tester
  102. 6Н6П vs 6Н6П-И (gold grid etc claims ? )
  103. GU 19 VS GU 19-1 What's the difference ?
  104. please advice 1K Vdc power supply
  105. Has anyone used an opamp to split phase for a tube amp?
  106. Advice for budget valve amplifier
  107. S-5 Electronoics K-12M amplifier: lack of plate to grid coupling caps
  108. Eico ST70 needs a preamp output....
  109. Damper diode slow start
  110. KT150 SE based on Mikael's KT88 Schematic
  111. Octal driver tube choice
  112. Anyone ever clone a Audionote P1 SE
  113. Bogen DB212 phase-inverter
  114. EAR 869
  115. # triode 31 line pre amp
  116. Choosing The Iron For A SE OPT?
  117. Swap EL34 with 6L6 or 6V6
  118. Bridgeable floating output transformer help
  119. tapedeck playback amplifier
  120. Design based on the Output Transformer
  121. UL Push-Pull Tube Amp (mono combo)
  122. Power transformer for SET: toroid vs EI core
  123. can I use 12v to run 6C33C tubes???
  124. How to understand the data sheet for this 'universal' SE output transformer?
  125. DIY Stereo Amp
  126. el84 and 6aw8a
  127. Tube amp reboot Re: Chinese 6P6P (6V6) Push-Pull Tube Amplifier Kit
  128. 2A3 driver
  129. Tube Phono Preamps
  130. Newbie. Balanced 2A3 SE amplifier information
  131. Tube rectifier supply help
  132. cathode follower - please check my circuit
  133. Output tube stage 1578 for no DAC
  134. Bias for 300B
  135. Pots value in tube equalizer
  136. 'Real world' max plate voltages for 6DJ8, 6P15P?
  137. Lower load resistance for lower distortion (6L6 PP)
  138. Transformer Hum.
  139. Hmmmm Star ground
  140. Taylor T20 triode - anyone used these?
  141. Filament DC power supply for 2 valves
  142. Tubes availability
  143. Tube power amp bad fit for ML?
  144. SLA Battery (Filament Supply) DC Reference limits?
  145. Citation I, Citation II, and another Citation I
  146. tube amp damping / weird bass response, speaker movement
  147. Convert valve output stage to pre amp
  148. 6HJ5 SET
  149. A different type of EL84 SE
  150. Transformer covers; steel or aly?
  151. Opinions on SET transformers for 307a amp
  152. Strange experience with Dynaco ST70 input tubes
  153. Need advice regarding SET 45 Amplifier
  154. "Low" B+ Voltage Amplifiers
  155. Small power all russian tubes single ended amp
  156. Noob question on triode
  157. Can I mount Plate chokes next to OPTs???
  158. R-3389A Schematic?
  159. tube baxandall tone control potentiometer resistance value
  160. Can you help me identify these burned resistors?
  161. Do i have a problem with my DC filaments?
  162. Recommendations please. Octal sockets.
  163. metal can capacitors
  164. Dynaco Mark IV selenium rectifier replacement
  165. Elekit 8200 Tube rolling
  166. Girlfriend Wants to Build One
  167. Moskido Hybrid Aikido-MOSFET Amplifier
  168. Modified ST70 with extra tube sockets?!?!
  169. Wanted: ExpressPCB component layout for 7 pin socket
  170. Eliminating balance controls on Eico st70
  171. APPJ PA0901A anyone?
  172. 90wpc from push pull KT88?
  173. Help guessing amplifier model
  174. unusual SET amp design, your thoughts please
  175. Siemens e83cc Long plate triple mica?
  176. Help identafying 2 Output Transoromers?
  177. Tube Rectified Power Supplies
  178. Audio Nirvana 300B SET amp.
  179. Plotting plate curves past dissipation limit
  180. Massive Old Console... Repair or gut and replace with modern stuff?
  181. Tap Cap?
  182. OLD vs NEW tube amplifier circuits
  183. Who Made These Amps.
  184. An Amp oddity
  185. Linyun 300B Luxury edition
  186. Can plate chokes be THAT different?
  187. Pye HF25 Tube Monoblocks: Restoring Legends
  188. Millett Hybrid headphone amp.
  189. 6n2p-ev
  190. Idea for driver for CF output stage
  191. Problem with KT88 Williamson LTSpice simulation
  192. voltage regulator tubes
  193. Input impedance of grounded grid stage?
  194. tube upgrade benefits , worth the money ? 6R3S-1 , EF86
  195. Riaa MM high gain, low impedance.
  196. increase live 211 tube
  197. Need help with OPT for Loewe Opta Apollo Stereo
  198. Potentiometer & Power Switch Help
  199. Audio Note M2 Riaa.
  200. Is it the end of Blackburn Microtech tubes?
  201. Please critique my PSU design
  202. Audio Novice
  203. What vintage gear to source for tubes and transformers?
  204. 6n6p source
  205. (2) 6AV6 instead of 12ax7
  206. Preamp mod with tone control - comment please
  207. Roland branded 12AX7 tube?
  208. Questions about updates/upgrades
  209. When doubling output-tubes: What needs to be considered ?
  210. Audio Research SP-10 help needed
  211. Safety Tip For The Day
  212. PSU Output: Tubecad PS-1 Question
  213. Micro Channel Plate (MCP) audio amplifier
  214. bell mod 2445
  215. found a vintage dynacord concert el84 amp
  216. Stability problems, help please?
  217. Do I NEED to bring up an old amp on veriac?
  218. 6P15 / EL84 Sort of Para-Feed, Cathode-Drive, Hybrid
  219. Crosstalk L-R. Acceptable levels?
  220. Yaqin MS MC - 30L Amp
  221. www.pimmlabs.com not available
  222. vibration resistant preamp tube
  223. Direct Heated Valve in Series - Channel Separation Question
  224. So i was going into Tosche Station to pick up some power converters . . .
  225. a sub crossover idea
  226. Understanding power supply
  227. 12AX7 Class 2 (Positive Grid Voltage) Operation
  228. All triode 250 watt western electric
  229. Telefunken EL34 data sheet
  230. Using a 6J1 tube amp as a final stage?
  231. Anyone use 872-A Mercury Vapor Rectifier Tube
  232. Need recapping tube radio advice
  233. Thinking about getting Philco model 14
  234. Mixed Bias for an EL34 ? Any recommendations / experience ?
  235. PP oscillation with toroid output transformer
  236. 6B4G New Amp Build Issue
  237. Mable Audio 300B Amp KitI
  238. Help me understand - 7061 vs. 12ab5 (and the rest of the 6V6 family)
  239. ebay seller jellyfishaudio
  240. 866a rectifier on 6.3vct@10A
  241. Vintage tube preamp design
  242. Output Transformer Wiring
  243. Ground loop problems
  244. Reversed preamp OPT as IPT
  245. A2 p-p with Millett driver
  246. DC filament supply schematic
  247. Mystery tube
  248. 6eu7/6bq5 feedback question
  249. Ultimate Ultralinear Amp...please help to understand...
  250. Mullard 20 Watt Amp

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