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  1. Need Help With These TriodeDick Preamp Scematics
  2. I need help with my amp project
  3. Looking for unbalanced to balanced transformer
  4. Power Transformer Question
  5. My First Tube Amp Project S5 K-12G
  6. 6E2 vacuum tube compatibility
  7. Tube condenser microphone help!
  8. Audio transformer feedback loop
  9. yaqin vk amp without the loudness button uk version
  10. PP driver stage with local feedback
  11. Leader LAG-120B Audio Generator Manual Wanted
  12. Transformer brand question
  13. Single ended at 24Vcc 1+1W @ 8 ohm - three tubes
  14. EL41 PP power supply questions
  15. Reduce output on a ECC88CC class A pre-amp !
  16. SE OT impedance question
  17. DIY Tube amp book?
  18. 6P6P tubes?? will 6V6's work?
  19. RH84 amplifier build, but very weak distorted output
  20. Paralleling filament transformers
  21. 6ak5 triode mode disipation
  22. Equalize or Not Equilize when driving a tube amp ?
  23. How to retire from DIY and sell off all your workshop contents?
  24. New to tubes and diyaudio here, question about torrids and tube amps...
  25. PC Based Oscilliscope for Tube Curcuits
  26. Lamp in HV Centre Tap - why?
  27. EL156 PP
  28. 300B resistor
  29. Has anyone here bought from ussr-tubes.com ?
  30. Which cathode bypass capacitor?
  31. RIAA Schematic for-6SL7,7308 or?
  32. Chassis' for Tube Gear
  33. Convergent Audio Tech SL1 preamp
  34. Buy Them While You Can Not When You...
  35. Does anyone know of Thomas Martens?
  36. OTL for 40-80ohm speakers
  37. Morrison Dinosaur
  38. pcl86=14gw8 ??
  39. My little SE with GU50
  40. Source follower in a DC-coupled pp amp?
  41. Tube chassis for retail sale.
  42. Poor man's power supply
  43. High voltage driver for AB2 operation GU81m tubes
  44. 5AR4 rectified power supply question
  45. Direct Coupled Amp
  46. Is this EL84 kit from Germany worth fooling with?
  47. 6v6 PP Pentode mode
  48. 5 pin octal tube socket
  49. RCA Manual Typo?
  50. pete millet low mu preamp
  51. Capability to drive the 211 PP
  52. 6BG6G SE advice needed.
  53. Signal Generator: Which one to buy ? What to look for in a signal generator ?
  54. Power booster
  55. I've just build this steroe amplifier
  56. What amp to build? Push Pull, SE? thoughts?
  57. amp sounds bad- fatman itube 252
  58. 6C33 single ended class A2 (cathode network question)
  59. Sweet Peach EL34b Amp - Distortion?
  60. 6C33C socket types, where to buy?
  61. haedphone amp. using 6418< NEED HELP
  62. finished my 6au6/807 amplifier
  63. Thinking about building an S5 16LS 16W amp I've got some questions for the forum./
  64. Broskie "Unbalancer" - transformer specifications
  65. Tube chess.
  66. How Its Made - Vacuum Tubes
  67. Please help me understand power supply load
  68. 12AU7 - How absolute are maximum ratings?
  69. Tube rejuvination
  70. Article: Samsung brings back tubes in audio dock
  71. 1st build suggestions
  72. Parallel SE output
  73. Fixed Bias question
  74. vintage ua 610 schematic
  75. Which KT88 PP and which Transformers?
  76. Some more special small-signal tv tubes
  77. MR 67 Coupling Caps
  78. Help - YAQIN MS-20L schematic
  79. Power and Speaker cables
  80. Leak TL12+ with triode mode EF86
  81. diy tube dampers
  82. VTVM troubleshooting help
  83. PP amp crossover distortion
  84. Sanity check please? ST-70(-ish) power supply
  85. Thoughts of apparent noise on ground - due to power tx?
  86. hybride circlotron
  87. Clone
  88. 8156 Beam Pentode Compactron
  89. DOUBLE TRIODE (6N16B)
  90. looking for Tube I/V analog for dac schematic ?
  91. NewBee PPEL84
  92. Whooaa! Now we're talking.
  93. Cinema Engineering AT-18
  94. Back from school
  95. Amp ideas for my spare 3.3k output transformers.
  96. HEllo and a few suggestions please
  97. 1SH24B Pre-Amp (or buffer?)
  98. Anode cap for GU 29 / QQE06/40
  99. Back to back autotransformers for B+?
  100. Sound Valves M60 schematics
  101. Volume Pot for RH84
  102. Mengyue mini el34b
  103. Which Chinese integrated tube amp have the power for Rock Song ?
  104. Help on transformers please
  105. 300B alternatives
  106. Anybody using a tube amp in their car?
  107. What is a KT88-98?
  108. 6au6 line stage a bad idea?
  109. Making a Kron tube
  110. AY Symphonies preamp
  111. Need to Upgrade Tube Preamp Volume Pot
  112. Tubelab Simple SE low B+
  113. Filament AC or DC?
  114. rasping sound from Dared VP-16
  115. Anyone have any "small signal" pentode models?
  116. Power amp distortion for modern amps
  117. Help with EL504-based amplifier
  118. Tubes: Are they worth it?
  119. Radio Shack Boston Monobloc (fuse question)
  120. 829B 3E29 Pentode PPP?
  121. Fixed Autobias?
  122. Best wishes
  123. Radiotron A504 amplifier schematic
  124. Blown power tube - a short story
  125. Hickok 752A calibration?
  126. replace EL34 with EL37 !?
  127. Mono push-pull driver PCB
  128. Magnavox 139AA schematics, info?
  129. Anyone knows what driver tube on DowdyLama's GM-70......
  130. Building an amp around the QB5/1750 transmitter tube
  131. Instrument amp from '59 Lowrey donor chassis.
  132. cascoded gyrator loaded 6H9C to low idle.
  133. vacuum tube DAC and connection
  134. Dynaco ST70 II Right Channel Out
  135. ST70 Inrush Issue
  136. ECC88 OTL heaphone amp
  137. Help with deciding to build or buy Tube amp.
  138. Luxman LV-105 static on on channel
  139. equivlent of FU-50
  140. placing the volume control
  141. PP 300B ''transformer coupled''
  142. My First Tube Preamp
  143. Tube amp kit and speaker recommendations?
  144. First design GU81M SE triode
  145. Instruments & Amps forum - where is it?
  146. Power supply capacitor question for tubelab simple ss
  147. EL300 = 6FN5 / PL300 = 35FN5 tube
  148. 6U8 driving 45
  149. very low impedance white follower with 6H13C
  150. EL86 Any idea helps.
  151. 6112 and 6111 Mini-preamp
  152. Expert advice on what preamp to chose
  153. Harman Kardon DPR-7, Commander series pre/mixer
  154. input transformer - mumetal casing etc.
  155. SOHA headphone amp
  156. Using a single triode as a .......
  157. Sonic Frontiers SFP-1 Phono Stage
  158. Help!! with attenuation.
  159. power up inrush current limiter - anyone using?
  160. Audioromy FU-29, Latest Model 828A Mini Review
  161. Vertical-deflection
  162. Drilling a hole
  163. Edcor CXPP25-MS-8K V Triode Z-565
  164. bad opt measured values
  165. Mu Follower Driver for Push-Pull
  166. Hickok 539 question...
  167. need datasheets for a phillips transformer if anyone has any
  168. Chicago power XFMR question.
  169. Coupling Capacitor - Pls Help
  170. Help please on Christmas gift
  171. Audio Note P-zero
  172. SE EL34 Schematic - What do you think?
  173. Playing with hybrid amp: SRPP + MOSFET
  174. 300B filament supply question
  175. KT88 Parallel Push Pull
  176. cheating life out of old tubes?
  177. dBu transformer ratings
  178. Dared MP-2a3c mods
  179. Output transformers (Wolpert)
  180. Using Mains Transformers as Outputs
  181. Tube just for show...
  182. first project - first post - poddwatt
  183. High power CCS
  184. Analog Summing
  185. My new el34 + 12ax7 VCT amp. (Need Ideas For my first headphone vacuum tube amp Too~)
  186. cascode tubes
  187. High Fidelity by Pilot (circa 1953)
  188. Hardware help please
  189. integrated amps 100 per channel
  190. KT88 mounting question
  191. Output Transformer question
  192. Angstrom Thermionic
  193. ECC88 tube buffer NEEDED !
  194. Paralell SE 807 Amp design
  195. Putting together a tweaker friendly amplifier!
  196. Tube chassis
  197. DHT headphone Hybrid-CF+
  198. Looking for specs on this Beyer Xfmr
  199. Resistors for Berning EA-2101?
  200. Uneven Plate Glow
  201. Parafeed transformer sounds thin
  202. Lightbulbs as ccs
  203. My AWESOME First DIY amp
  204. Cary audio design SLI 80
  205. A1538 OPT?
  206. Genalex A2900 Keep or Sell?
  207. 6CB6 Spice Model wanted
  208. XFMR Help?
  209. 12 volt to 300 volt inverter question for tubes
  210. These amps should be verboten!
  211. how to use PCL86 instead of ecl86
  212. PSU for Aikido (4x 12SN7)
  213. SCA35 and AU-70
  214. Analisys of power amp limitations of tube bias range
  215. DIY Phono Preamp ??
  216. NOS 211 RCA or National Union?
  217. Iron Powder + Resin Output Transformer
  218. The Radio Hat Challenge
  219. EU regulations
  220. Transconductance for kt-90 in plain english
  221. Craftsmen RC-2
  222. Valve Amplification Company V100
  223. Parallel feed transformer with SRPP
  224. It's heeeeeere!- Valve Amplifiers 4th Edition
  225. opera consonance phonostage-PM1
  226. Anybody Explain this Preamp shematic?
  227. The high-voltage collection
  228. Input transformer topology question
  229. JE Labs 300Bdx stereo - troubleshooting
  230. battery operated 12/24/48 Volt multiple tube OTL
  231. Bringing up long-stored tube gear
  232. About RH84 three channel?
  233. MCC with Fisher
  234. Directly heated cathodes
  235. Build recommendation
  236. Ortofon KS 591 - informations
  237. Oatley K295-extra space for tubes
  238. A beginner's tube amp to drive a pair of fostex Fe103e
  239. Tame the beast.
  240. KT88 and Hammond Transformer
  241. B+ Drifts down after 2 hours
  242. Power amp sputters on turnoff
  243. Yet another EQP-1A
  244. How to bias 6SL7?
  245. 6CG7/6FQ7 = 6N5P (6Н5П)
  246. #27 mu stage
  247. Compactron Regulated Power Supply
  248. Best sounding voltage amplifier for hybride.
  249. PX25 to 300B pins
  250. de-gassing power tubes???

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