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  1. Leak tl12+ ECC81
  2. Kuba Serenade Stereo Console - Part II - New development - amp debug question
  3. Amperex AX569
  4. Marconi tube ID help
  5. ST-70 Input Stage, Explained For Extreme Beginners
  6. heaters connected to cathode?!
  7. HK Citation I rebuild question.
  8. tube 4-125A design
  9. Mod FISHER 100AZ-balanced input!?
  10. Akidio PS-17 CLC Resistance Value Choices
  11. More questions on parallel push-pull
  12. Inputs needed for Power Transformer Design!
  13. seeking advice about Welborne Labs kit
  14. 2A3 Design: Real World Gain Question
  15. 6M11 push-pull spud amp
  16. My first Console mod - Class is in session
  17. Wright Sound WPA 3.5 Power Transformer Replacement Options
  18. DF 96 tube
  19. S.A.C.T valve transformers
  20. Very strange....
  21. Advice Needed on PSU Over voltage
  22. Griffin G170 schematic needed
  23. Funny comment about the religion of SE
  24. calculate needed wattage for output transformer
  25. AP1 tube preamp assistance needed,please?
  26. 6AN8 or ECF80 ?
  27. Simple Cheap Amp Using 6l6 and/or 12ax7?
  28. Which Tube Amp Kit Sounds Best
  29. Push Pull 6HJ5 Monoblocks
  30. 100 V transformers
  31. unstable right channel
  32. Aikido 9 pin tubes for 2a3
  33. preamp kit
  34. 71a DHT Pre - MV Rectifier, Batteries, and TVC's
  35. Build ideas? New tube amp find and I'd like some input please.
  36. OB2 SPICE model
  37. Push pull - driver tube plate voltage
  38. Voltage Doubler Caps
  39. Morgan Jones Regulator - Questions
  40. Gu-50 SE Amp , quick question...
  41. Tube Amp Open Circuit Protection
  42. 6CU6 Sweep Tube Monoblock Power Amp Build Log
  43. je labs type 76 preamp build!
  44. Any Tube Designers Out There: Money For You
  45. Output Transformer Questions
  46. cathode bias redplate question
  47. eyelets and radial capacitors
  48. Help with MiniBlok II
  49. Reading Sovtek Date Codes
  50. ECF or PCF80 as a headphone amp
  51. 60 Watt Mono Build
  52. Amp for Klipsch Heresy
  53. The ULTIMATE 300B
  54. Stage gain and cascading
  55. NOS Tube Socket Question
  56. 75 Watt/Channel Monoblock Custom Amp
  57. Wiring variac
  58. 1SH29B russian miniature tube - useful for audio?
  59. Humming in PP EL84 Tubes aMP.
  60. Repurposing a Tube Reel to Reel
  61. YaQin MC-10L Vs ST70: Sound Quality
  62. Voltage VS. Amperage?
  63. 3 questions about 6B4g
  64. DIY OPT - are these good?
  65. Audio Research regulators
  66. 0C3 for lowering down the screens?
  67. radio like interference condition in SA-100
  68. PCL86 heater flash
  69. Tube powered subwoofer
  70. Anyone have experience with Shuguang 805A
  71. The emperor's new amplifier
  72. Power supply question:twin choke input?
  73. El-84 vs El-86
  74. Modifying Tektronix Type-E Plugin
  75. radio coming thru speakers.
  76. FM tube tuner
  77. diy el 34 se
  78. Transformers Specs for a 2x KT88 Amp
  79. 805 Positive or Negative Grid
  80. Point To Point, 100 percent, No Kit
  81. More line loads etc
  82. B300 C120 rectifier replacement.
  83. Triode simulation/emulation with solid state
  84. What is the driver circuit here?
  85. Dynaco Mark III
  86. ReCap- Heathkit AA-151 Help
  87. Hammond Chassis?
  88. How about an IXCP10M90 as a FETRON
  89. PUSH PULL SE ???
  90. More load lines...
  91. 7193/2C22: wich brand's the best?
  92. Bumed out over this Setchell Carlson
  93. Looking for Electron flow diagram
  94. Why Only Automatic/Semi-Automatic Bias?
  95. Audio Note M-Zero preamp
  96. Load lines. What?
  97. Preamp - pop on channel change
  98. Just for interest.
  99. 813 push-pull output 250W tube amp
  100. What sort of resistors are fine to use in tube amps?
  101. How Not To Pack DHTs For Postal Shipment
  102. Help me ID this trafo and tubes..
  103. Full PSE Amp /only 6E5P/
  104. ATH90
  105. Corroded valve pins
  106. Power supply advice needed
  107. Big Capacitors in PSU
  108. 6CD6G Tube amp
  109. Removal of Cathode Follower in JE Labs Circuit
  110. Q: Cascaded Transformers, S&B102+LL7903
  111. Threshold dac 1e possible modd
  112. Need Help with PSVANE 6CA7-T
  113. Why kind of Vacuun tube is the Tung-Sol TS 930 ??
  114. Magnetic Ballast (Sylvania) MB2 x 40/120 RS
  115. Recommendations & Budget for DIY Tube Amp kit?
  116. Recommend a good plate choke for 5842 tube
  117. Recomendations for SE 6AQ5 Schematics?
  118. ST35 Phase Splitter
  119. german console pull recap Project - help needed
  120. 6B4G Monkey help
  121. These transformers can be used for EL84 SE?
  122. 300B...Ebay or DIY??
  123. Higher gain twin triode!
  124. ARC V70 bias
  125. 70v transformers explored.
  126. Are these caps stuffed ?
  127. Anyone recognizes this amp ?
  128. What is Simplest and Best 6550 PP What is Simplest and Best 6L6 PP circuit? (PK)
  129. My tube differential amplifier
  130. Helping a friend build a tube headphone amp.
  131. Tango XE-20S, tube option
  132. -follower with mosfet... how stable ?
  133. 5k or 2.5k for 6s45p
  134. minor hum problem
  135. Help to choose budget Tube Amp....
  136. Vao
  137. Help with tube-rolling 300b Ming-Da amp?
  138. EF184 pins 1 and 3
  139. aikido pre (5687 all in one) HUMM!!
  140. Question about tube datasheets
  141. EL84 "typical" amplifier
  142. Packing heat.
  143. Current rating for power transformer.
  144. Pentode Odd Behavior
  145. Lower Screen Voltage KT88, choke input + Cap input supply
  146. tannoy line trans
  147. Hi Gain Inverter for a PP amp
  148. Help looking for a project
  149. Dynaco MkIII bias flutter/stability...
  150. grid leak resistor?
  151. 16LS Stereo Tube Amplifier and how to connect to Baxandall Tube stereo tone control
  152. Fisher 800-C blown fuse
  153. testing 300B on Hickok 539B/C
  154. cathode bias imbalance
  155. DIY M60 OTL Power Amplifiers
  156. Invisible gain...Aikido content
  157. Vacuum Tube Spice Models
  158. Tamura interstages
  159. Jolida 502/302b power transformer.
  160. Anyone used high voltage MKP1848 caps
  161. Bogen mo-200
  162. Phono Circuit Noise Factor
  163. Input impedance of this headphone amplifier ?
  164. D3a preamp.
  165. Newbie needs advice about DIY project please!
  166. PSUD and Off load Voltage
  167. Help! AVO CT-160 Meltdown
  168. Groovewatt-Valve RIAA Phono Preamp?
  169. Mullard EL84 Reissue?
  170. Push Pull amp power supply question
  171. Aikido all in one 5687 tube pre / louder in right Channel
  172. AUDIO RESEARCH SP-6B TUBE AMPLIFIER
  173. Tube Amp
  174. Preamp Pentode Screen Voltage and Gain
  175. AUDIBLE iLLUSION m3A
  176. What "Class" amp is this?
  177. DC coupling
  178. DuKane 1A831
  179. Thump sound at turn off of a power amp
  180. DHT AC heating 120hz phase canceling
  181. REVOX Model 40 amp. Need some hand holding please.
  182. heater imbalance fixable?
  183. Headphone amp
  184. Speech Amp for Modulator
  185. 2.1 channel el84 amp help
  186. Identify PC board in little amp...
  187. dcpp vs sse vs spp? First build
  188. Spice model for GU50 (LT-Spice)
  189. Need schematic of Preamplifier AM 1065
  190. My Journey to build Tube power amplifier B300 SE
  191. Kondo M77
  192. tube datasheet gm
  193. xiang sheng best valves
  194. 6CN6/EL38 Replacement
  195. 4P55
  196. Possible or way to complicated?
  197. Jeff korneff SET 45
  198. Hickok 536 Calibration Procedure?
  199. P2p layout
  200. Heating tubes off mains voltage
  201. EL84 as preamp tube?
  202. Claus Byrith 4-30 PP with KT66
  203. biasing confusion
  204. Bogen HE-10 question
  205. Golden Tube Audio SE-100
  206. Nearing Conclusion of Line/Phono Project
  207. Bias Supply For Citation V?
  208. Tube Integrated Amp
  209. Help needed about a quad FM2 RF
  210. 21jv6 tube datasheet
  211. Interstage transformer theoretical phase change?
  212. Bootstrapping a high pass filter
  213. Help with hybrid Aikido amp! Suggestions please
  214. Need help with a Curcio Daniel 1
  215. Audio Tubes used in Industrial equipment?
  216. Hammond H1 Amp
  217. CCS assisted small signal UL pentode
  218. Vox AC50 output transformer rewind
  219. Dynaco ST35 B+
  220. Simple Tube Amp
  221. Portable tube amplifier
  222. Using the heater supply to get a DC source
  223. phono/aux switching problem
  224. What is the best EF86 in production at the moment
  225. 12AX7 / 12AT7 Mu Follower Phono
  226. Kreisler Stereo 6 speaker impedance
  227. A serviceable life.....
  228. TV 7 DU Tube info
  229. Twinings Tea Transformer Covers
  230. ECC88 with 12V heaters
  231. CXhange opa 627ap for an audio gd moon ?
  232. PP-EL34/6550/EL-PL504 or KT88 Bal. innput
  233. fatman itube mk1 sounds bad
  234. Chinese FD-71 tube is the russian GK-71 ?
  235. Leak stereo 20 diagnosis
  236. VTL
  237. Looking for tubed MC pre-pre
  238. Correct wiring types
  239. Couplates
  240. Op-Amp Like Line Preamp
  241. SE GU-50/6CB6 Pentode Design
  242. Pioneer SX34
  243. About metal film resistor in a tube tuner
  244. Looking for 52dBs or more MM phono
  245. Winter is coming... Time to start GM70 SE parafeed amp
  246. Doug Self: Wireless World Magazine Article Archive
  247. Relay short circuit
  248. EL34 PP oscillating
  249. Dynaco switchable diode/tube rec and driver tube mode
  250. CCS into a VR with Interstage question

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