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  1. Inputs needed for Power Transformer Design!
  2. seeking advice about Welborne Labs kit
  3. 2A3 Design: Real World Gain Question
  4. 6M11 push-pull spud amp
  5. My first Console mod - Class is in session
  6. Wright Sound WPA 3.5 Power Transformer Replacement Options
  7. DF 96 tube
  8. S.A.C.T valve transformers
  9. Very strange....
  10. Advice Needed on PSU Over voltage
  11. Griffin G170 schematic needed
  12. Funny comment about the religion of SE
  13. calculate needed wattage for output transformer
  14. AP1 tube preamp assistance needed,please?
  15. 6AN8 or ECF80 ?
  16. Simple Cheap Amp Using 6l6 and/or 12ax7?
  17. Which Tube Amp Kit Sounds Best
  18. Push Pull 6HJ5 Monoblocks
  19. 100 V transformers
  20. unstable right channel
  21. Aikido 9 pin tubes for 2a3
  22. preamp kit
  23. 71a DHT Pre - MV Rectifier, Batteries, and TVC's
  24. Build ideas? New tube amp find and I'd like some input please.
  25. OB2 SPICE model
  26. Push pull - driver tube plate voltage
  27. Voltage Doubler Caps
  28. Morgan Jones Regulator - Questions
  29. Gu-50 SE Amp , quick question...
  30. Tube Amp Open Circuit Protection
  31. 6CU6 Sweep Tube Monoblock Power Amp Build Log
  32. je labs type 76 preamp build!
  33. Any Tube Designers Out There: Money For You
  34. Output Transformer Questions
  35. cathode bias redplate question
  36. eyelets and radial capacitors
  37. Help with MiniBlok II
  38. Reading Sovtek Date Codes
  39. ECF or PCF80 as a headphone amp
  40. 60 Watt Mono Build
  41. Amp for Klipsch Heresy
  42. The ultimate 300B
  43. Stage gain and cascading
  44. NOS Tube Socket Question
  45. 75 Watt/Channel Monoblock Custom Amp
  46. Wiring variac
  47. 1SH29B russian miniature tube - useful for audio?
  48. Humming in PP EL84 Tubes aMP.
  49. Repurposing a Tube Reel to Reel
  50. YaQin MC-10L Vs ST70: Sound Quality
  51. Voltage VS. Amperage?
  52. 3 questions about 6B4g
  53. DIY OPT - are these good?
  54. Audio Research regulators
  55. 0C3 for lowering down the screens?
  56. radio like interference condition in SA-100
  57. PCL86 heater flash
  58. Tube powered subwoofer
  59. Anyone have experience with Shuguang 805A
  60. The emperor's new amplifier
  61. Power supply question:twin choke input?
  62. El-84 vs El-86
  63. Modifying Tektronix Type-E Plugin
  64. radio coming thru speakers.
  65. FM tube tuner
  66. diy el 34 se
  67. Transformers Specs for a 2x KT88 Amp
  68. 805 Positive or Negative Grid
  69. Point To Point, 100 percent, No Kit
  70. More line loads etc
  71. B300 C120 rectifier replacement.
  72. Triode simulation/emulation with solid state
  73. What is the driver circuit here?
  74. Dynaco Mark III
  75. ReCap- Heathkit AA-151 Help
  76. Hammond Chassis?
  77. How about an IXCP10M90 as a FETRON
  78. PUSH PULL SE ???
  79. More load lines...
  80. 7193/2C22: wich brand's the best?
  81. Bumed out over this Setchell Carlson
  82. Looking for Electron flow diagram
  83. Why Only Automatic/Semi-Automatic Bias?
  84. Audio Note M-Zero preamp
  85. Load lines. What?
  86. Preamp - pop on channel change
  87. Just for interest.
  88. 813 push-pull output 250W tube amp
  89. What sort of resistors are fine to use in tube amps?
  90. How Not To Pack DHTs For Postal Shipment
  91. Help me ID this trafo and tubes..
  92. Full PSE Amp /only 6E5P/
  93. ATH90
  94. Corroded valve pins
  95. Power supply advice needed
  96. Big Capacitors in PSU
  97. 6CD6G Tube amp
  98. Removal of Cathode Follower in JE Labs Circuit
  99. Q: Cascaded Transformers, S&B102+LL7903
  100. Threshold dac 1e possible modd
  101. Need Help with PSVANE 6CA7-T
  102. Why kind of Vacuun tube is the Tung-Sol TS 930 ??
  103. Magnetic Ballast (Sylvania) MB2 x 40/120 RS
  104. Recommendations & Budget for DIY Tube Amp kit?
  105. Recommend a good plate choke for 5842 tube
  106. Recomendations for SE 6AQ5 Schematics?
  107. ST35 Phase Splitter
  108. german console pull recap Project - help needed
  109. 6B4G Monkey help
  110. These transformers can be used for EL84 SE?
  111. 300B...Ebay or DIY??
  112. Higher gain twin triode!
  113. ARC V70 bias
  114. 70v transformers explored.
  115. Are these caps stuffed ?
  116. Anyone recognizes this amp ?
  117. What is Simplest and Best 6550 PP What is Simplest and Best 6L6 PP circuit? (PK)
  118. My tube differential amplifier
  119. Helping a friend build a tube headphone amp.
  120. Tango XE-20S, tube option
  121. -follower with mosfet... how stable ?
  122. 5k or 2.5k for 6s45p
  123. minor hum problem
  124. Help to choose budget Tube Amp....
  125. Vao
  126. Help with tube-rolling 300b Ming-Da amp?
  127. EF184 pins 1 and 3
  128. aikido pre (5687 all in one) HUMM!!
  129. Question about tube datasheets
  130. EL84 "typical" amplifier
  131. Packing heat.
  132. Current rating for power transformer.
  133. Pentode Odd Behavior
  134. Lower Screen Voltage KT88, choke input + Cap input supply
  135. tannoy line trans
  136. Hi Gain Inverter for a PP amp
  137. Help looking for a project
  138. Dynaco MkIII bias flutter/stability...
  139. grid leak resistor?
  140. 16LS Stereo Tube Amplifier and how to connect to Baxandall Tube stereo tone control
  141. Fisher 800-C blown fuse
  142. testing 300B on Hickok 539B/C
  143. cathode bias imbalance
  144. DIY M60 OTL Power Amplifiers
  145. Invisible gain...Aikido content
  146. Vacuum Tube SPICE Models
  147. Tamura interstages
  148. Jolida 502/302b power transformer.
  149. Bogen mo-200
  150. Phono Circuit Noise Factor
  151. Input impedance of this headphone amplifier ?
  152. D3a preamp.
  153. Newbie needs advice about DIY project please!
  154. PSUD and Off load Voltage
  155. Help! AVO CT-160 Meltdown
  156. Groovewatt-Valve RIAA Phono Preamp?
  157. Mullard EL84 Reissue?
  158. Push Pull amp power supply question
  159. Aikido all in one 5687 tube pre / louder in right Channel
  160. AUDIO RESEARCH SP-6B TUBE AMPLIFIER
  161. Tube Amp
  162. Preamp Pentode Screen Voltage and Gain
  163. AUDIBLE iLLUSION m3A
  164. What "Class" amp is this?
  165. DC coupling
  166. DuKane 1A831
  167. Thump sound at turn off of a power amp
  168. DHT AC heating 120hz phase canceling
  169. REVOX Model 40 amp. Need some hand holding please.
  170. heater imbalance fixable?
  171. Headphone amp
  172. Speech Amp for Modulator
  173. 2.1 channel el84 amp help
  174. Identify PC board in little amp...
  175. dcpp vs sse vs spp? First build
  176. Spice model for GU50 (LT-Spice)
  177. Need schematic of Preamplifier AM 1065
  178. My Journey to build Tube power amplifier B300 SE
  179. Kondo M77
  180. tube datasheet gm
  181. xiang sheng best valves
  182. 6CN6/EL38 Replacement
  183. 4P55
  184. Possible or way to complicated?
  185. Jeff korneff SET 45
  186. Hickok 536 Calibration Procedure?
  187. P2p layout
  188. Heating tubes off mains voltage
  189. EL84 as preamp tube?
  190. Claus Byrith 4-30 PP with KT66
  191. biasing confusion
  192. Bogen HE-10 question
  193. Golden Tube Audio SE-100
  194. Nearing Conclusion of Line/Phono Project
  195. Bias Supply For Citation V?
  196. Tube Integrated Amp
  197. Help needed about a quad FM2 RF
  198. 21jv6 tube datasheet
  199. Interstage transformer theoretical phase change?
  200. Bootstrapping a high pass filter
  201. Help with hybrid Aikido amp! Suggestions please
  202. Need help with a Curcio Daniel 1
  203. Audio Tubes used in Industrial equipment?
  204. Hammond H1 Amp
  205. CCS assisted small signal UL pentode
  206. Dynaco ST35 B+
  207. Simple Tube Amp
  208. Portable tube amplifier
  209. Using the heater supply to get a DC source
  210. phono/aux switching problem
  211. What is the best EF86 in production at the moment
  212. 12AX7 / 12AT7 Mu Follower Phono
  213. Kreisler Stereo 6 speaker impedance
  214. A serviceable life.....
  215. TV 7 DU Tube info
  216. Twinings Tea Transformer Covers
  217. ECC88 with 12V heaters
  218. CXhange opa 627ap for an audio gd moon ?
  219. PP-EL34/6550/EL-PL504 or KT88 Bal. innput
  220. fatman itube mk1 sounds bad
  221. Chinese FD-71 tube is the russian GK-71 ?
  222. Leak stereo 20 diagnosis
  223. VTL
  224. Looking for tubed MC pre-pre
  225. Correct wiring types
  226. Couplates
  227. Op-Amp Like Line Preamp
  228. SE GU-50/6CB6 Pentode Design
  229. Pioneer SX34
  230. About metal film resistor in a tube tuner
  231. Looking for 52dBs or more MM phono
  232. Winter is coming... Time to start GM70 SE parafeed amp
  233. Doug Self: Wireless World Magazine Article Archive
  234. Relay short circuit
  235. EL34 PP oscillating
  236. Dynaco switchable diode/tube rec and driver tube mode
  237. CCS into a VR with Interstage question
  238. 6SN7-6V6x2 DC coupled 2 stage with stacked supplies
  239. Rectifier and DC filtering relationship question
  240. Class A2 6JD5 Curves
  241. Motorola HS-839 Amp problem
  242. Active valve monitors?
  243. Did I get this load calculation right?
  244. Convergent SL1 original schematic
  245. Bleed down resistor
  246. How do I calculate resistor value in this schematic?
  247. Easy question about tube data sheet
  248. Tube regulator question
  249. Tube amp build for an 1st timer.
  250. Full music 101d input tube/valve

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