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  1. Mullard HQ Stereo Amp - Transformers Question
  2. C3g triode-strapped linearity question
  3. Making tube Rp disappear now
  4. 6E5P Connection Question
  5. Push Pull stereo amp bridged to monoblock operation
  6. Mr Blohbaum's Multiplied Transconductance Amp
  7. Vintage output transformer ID
  8. Getting Rid of Some Stickys
  9. Grid is Referenced To Ground through resistor? WHAT?
  10. Problem with CCSIC in Tubelab SE
  11. AP testing of the 6L6 SE
  12. output impedance
  13. 11BM8 heater wiring question
  14. Lower AC ripple on one side of coupling cap than the other side?
  15. HELP!! K12G Valve kit transformer
  16. 4 x EL34 or 2 x 6550 in a pp amp
  17. 5965 Telefunken tube U mh CO label ?
  18. 845 IT couple amp
  19. What makes an output tube "run away"
  20. P. Millett Engineers Amplifier
  21. Biasing problem
  22. Direct coupled driver stage - bias design
  23. Monoblock project
  24. Series DC Heater chain
  25. Tranformer advice for small powered amp.
  26. Circuit for testing tube/valve - Help!
  27. new Tubes for MHZS 33
  28. Teeny Tiny Spud
  29. Paging Andy Bartha
  30. 6ak5 / 5654 tubes in Kuala Lumpur, Malaysia
  31. aikido octal all-in-one manual
  32. Conrad Johnson MV75 help needed
  33. Leak tl12+ ECC81
  34. Kuba Serenade Stereo Console - Part II - New development - amp debug question
  35. Amperex AX569
  36. Marconi tube ID help
  37. ST-70 Input Stage, Explained For Extreme Beginners
  38. heaters connected to cathode?!
  39. HK Citation I rebuild question.
  40. tube 4-125A design
  41. Mod FISHER 100AZ-balanced input!?
  42. Akidio PS-17 CLC Resistance Value Choices
  43. More questions on parallel push-pull
  44. Inputs needed for Power Transformer Design!
  45. seeking advice about Welborne Labs kit
  46. 2A3 Design: Real World Gain Question
  47. 6M11 push-pull spud amp
  48. My first Console mod - Class is in session
  49. Wright Sound WPA 3.5 Power Transformer Replacement Options
  50. DF 96 tube
  51. S.A.C.T valve transformers
  52. Very strange....
  53. Advice Needed on PSU Over voltage
  54. Griffin G170 schematic needed
  55. Funny comment about the religion of SE
  56. calculate needed wattage for output transformer
  57. AP1 tube preamp assistance needed,please?
  58. 6AN8 or ECF80 ?
  59. Simple Cheap Amp Using 6l6 and/or 12ax7?
  60. Which Tube Amp Kit Sounds Best
  61. Push Pull 6HJ5 Monoblocks
  62. 100 V transformers
  63. unstable right channel
  64. Aikido 9 pin tubes for 2a3
  65. preamp kit
  66. 71a DHT Pre - MV Rectifier, Batteries, and TVC's
  67. Build ideas? New tube amp find and I'd like some input please.
  68. OB2 SPICE model
  69. Push pull - driver tube plate voltage
  70. Voltage Doubler Caps
  71. Morgan Jones Regulator - Questions
  72. Gu-50 SE Amp , quick question...
  73. Tube Amp Open Circuit Protection
  74. 6CU6 Sweep Tube Monoblock Power Amp Build Log
  75. je labs type 76 preamp build!
  76. Any Tube Designers Out There: Money For You
  77. Output Transformer Questions
  78. cathode bias redplate question
  79. eyelets and radial capacitors
  80. Help with MiniBlok II
  81. Reading Sovtek Date Codes
  82. ECF or PCF80 as a headphone amp
  83. 60 Watt Mono Build
  84. Amp for Klipsch Heresy
  85. The ULTIMATE 300B
  86. Stage gain and cascading
  87. NOS Tube Socket Question
  88. 75 Watt/Channel Monoblock Custom Amp
  89. Wiring variac
  90. 1SH29B russian miniature tube - useful for audio?
  91. Humming in PP EL84 Tubes aMP.
  92. Repurposing a Tube Reel to Reel
  93. YaQin MC-10L Vs ST70: Sound Quality
  94. Voltage VS. Amperage?
  95. 3 questions about 6B4g
  96. DIY OPT - are these good?
  97. Audio Research regulators
  98. 0C3 for lowering down the screens?
  99. radio like interference condition in SA-100
  100. PCL86 heater flash
  101. Tube powered subwoofer
  102. Anyone have experience with Shuguang 805A
  103. The emperor's new amplifier
  104. Power supply question:twin choke input?
  105. El-84 vs El-86
  106. Modifying Tektronix Type-E Plugin
  107. radio coming thru speakers.
  108. FM tube tuner
  109. diy el 34 se
  110. Transformers Specs for a 2x KT88 Amp
  111. 805 Positive or Negative Grid
  112. Point To Point, 100 percent, No Kit
  113. More line loads etc
  114. B300 C120 rectifier replacement.
  115. Triode simulation/emulation with solid state
  116. What is the driver circuit here?
  117. Dynaco Mark III
  118. ReCap- Heathkit AA-151 Help
  119. Hammond Chassis?
  120. How about an IXCP10M90 as a FETRON
  121. PUSH PULL SE ???
  122. More load lines...
  123. 7193/2C22: wich brand's the best?
  124. Bumed out over this Setchell Carlson
  125. Looking for Electron flow diagram
  126. Why Only Automatic/Semi-Automatic Bias?
  127. Audio Note M-Zero preamp
  128. Load lines. What?
  129. Preamp - pop on channel change
  130. Just for interest.
  131. 813 push-pull output 250W tube amp
  132. What sort of resistors are fine to use in tube amps?
  133. How Not To Pack DHTs For Postal Shipment
  134. Help me ID this trafo and tubes..
  135. Full PSE Amp /only 6E5P/
  136. ATH90
  137. Corroded valve pins
  138. Power supply advice needed
  139. Big Capacitors in PSU
  140. 6CD6G Tube amp
  141. Removal of Cathode Follower in JE Labs Circuit
  142. Q: Cascaded Transformers, S&B102+LL7903
  143. Threshold dac 1e possible modd
  144. Need Help with PSVANE 6CA7-T
  145. Why kind of Vacuun tube is the Tung-Sol TS 930 ??
  146. Magnetic Ballast (Sylvania) MB2 x 40/120 RS
  147. Recommendations & Budget for DIY Tube Amp kit?
  148. Recommend a good plate choke for 5842 tube
  149. Recomendations for SE 6AQ5 Schematics?
  150. ST35 Phase Splitter
  151. german console pull recap Project - help needed
  152. 6B4G Monkey help
  153. These transformers can be used for EL84 SE?
  154. 300B...Ebay or DIY??
  155. Higher gain twin triode!
  156. ARC V70 bias
  157. 70v transformers explored.
  158. Are these caps stuffed ?
  159. Anyone recognizes this amp ?
  160. What is Simplest and Best 6550 PP What is Simplest and Best 6L6 PP circuit? (PK)
  161. My tube differential amplifier
  162. Helping a friend build a tube headphone amp.
  163. Tango XE-20S, tube option
  164. -follower with mosfet... how stable ?
  165. 5k or 2.5k for 6s45p
  166. minor hum problem
  167. Help to choose budget Tube Amp....
  168. Vao
  169. Help with tube-rolling 300b Ming-Da amp?
  170. EF184 pins 1 and 3
  171. aikido pre (5687 all in one) HUMM!!
  172. Question about tube datasheets
  173. EL84 "typical" amplifier
  174. Packing heat.
  175. Current rating for power transformer.
  176. Pentode Odd Behavior
  177. Lower Screen Voltage KT88, choke input + Cap input supply
  178. tannoy line trans
  179. Hi Gain Inverter for a PP amp
  180. Help looking for a project
  181. Dynaco MkIII bias flutter/stability...
  182. grid leak resistor?
  183. 16LS Stereo Tube Amplifier and how to connect to Baxandall Tube stereo tone control
  184. Fisher 800-C blown fuse
  185. testing 300B on Hickok 539B/C
  186. cathode bias imbalance
  187. DIY M60 OTL Power Amplifiers
  188. Invisible gain...Aikido content
  189. Vacuum Tube Spice Models
  190. Tamura interstages
  191. Jolida 502/302b power transformer.
  192. Anyone used high voltage MKP1848 caps
  193. Bogen mo-200
  194. Phono Circuit Noise Factor
  195. Input impedance of this headphone amplifier ?
  196. D3a preamp.
  197. Newbie needs advice about DIY project please!
  198. PSUD and Off load Voltage
  199. Help! AVO CT-160 Meltdown
  200. Groovewatt-Valve RIAA Phono Preamp?
  201. Mullard EL84 Reissue?
  202. Push Pull amp power supply question
  203. Aikido all in one 5687 tube pre / louder in right Channel
  204. AUDIO RESEARCH SP-6B TUBE AMPLIFIER
  205. Tube Amp
  206. Preamp Pentode Screen Voltage and Gain
  207. AUDIBLE iLLUSION m3A
  208. What "Class" amp is this?
  209. DC coupling
  210. DuKane 1A831
  211. Thump sound at turn off of a power amp
  212. DHT AC heating 120hz phase canceling
  213. REVOX Model 40 amp. Need some hand holding please.
  214. heater imbalance fixable?
  215. Headphone amp
  216. Speech Amp for Modulator
  217. 2.1 channel el84 amp help
  218. Identify PC board in little amp...
  219. dcpp vs sse vs spp? First build
  220. Spice model for GU50 (LT-Spice)
  221. Need schematic of Preamplifier AM 1065
  222. My Journey to build Tube power amplifier B300 SE
  223. Kondo M77
  224. tube datasheet gm
  225. xiang sheng best valves
  226. 6CN6/EL38 Replacement
  227. 4P55
  228. Possible or way to complicated?
  229. Jeff korneff SET 45
  230. Hickok 536 Calibration Procedure?
  231. P2p layout
  232. Heating tubes off mains voltage
  233. EL84 as preamp tube?
  234. Claus Byrith 4-30 PP with KT66
  235. biasing confusion
  236. Bogen HE-10 question
  237. Golden Tube Audio SE-100
  238. Nearing Conclusion of Line/Phono Project
  239. Bias Supply For Citation V?
  240. Tube Integrated Amp
  241. Help needed about a quad FM2 RF
  242. 21jv6 tube datasheet
  243. Interstage transformer theoretical phase change?
  244. Bootstrapping a high pass filter
  245. Help with hybrid Aikido amp! Suggestions please
  246. Need help with a Curcio Daniel 1
  247. Audio Tubes used in Industrial equipment?
  248. Hammond H1 Amp
  249. CCS assisted small signal UL pentode
  250. Vox AC50 output transformer rewind

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