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  1. I need help with my amp project
  2. Looking for unbalanced to balanced transformer
  3. Power Transformer Question
  4. My First Tube Amp Project S5 K-12G
  5. 6E2 vacuum tube compatibility
  6. Tube condenser microphone help!
  7. Audio transformer feedback loop
  8. yaqin vk amp without the loudness button uk version
  9. PP driver stage with local feedback
  10. Leader LAG-120B Audio Generator Manual Wanted
  11. Transformer brand question
  12. Single ended at 24Vcc 1+1W @ 8 ohm - three tubes
  13. EL41 PP power supply questions
  14. Reduce output on a ECC88CC class A pre-amp !
  15. SE OT impedance question
  16. DIY Tube amp book?
  17. 6P6P tubes?? will 6V6's work?
  18. RH84 amplifier build, but very weak distorted output
  19. Paralleling filament transformers
  20. 6ak5 triode mode disipation
  21. Equalize or Not Equilize when driving a tube amp ?
  22. How to retire from DIY and sell off all your workshop contents?
  23. New to tubes and diyaudio here, question about torrids and tube amps...
  24. PC Based Oscilliscope for Tube Curcuits
  25. Lamp in HV Centre Tap - why?
  26. EL156 PP
  27. 300B resistor
  28. Has anyone here bought from ussr-tubes.com ?
  29. Which cathode bypass capacitor?
  30. RIAA Schematic for-6SL7,7308 or?
  31. Chassis' for Tube Gear
  32. Convergent Audio Tech SL1 preamp
  33. Buy Them While You Can Not When You...
  34. Does anyone know of Thomas Martens?
  35. OTL for 40-80ohm speakers
  36. Morrison Dinosaur
  37. pcl86=14gw8 ??
  38. My little SE with GU50
  39. Source follower in a DC-coupled pp amp?
  40. Tube chassis for retail sale.
  41. Poor man's power supply
  42. High voltage driver for AB2 operation GU81m tubes
  43. 5AR4 rectified power supply question
  44. Direct Coupled Amp
  45. Is this EL84 kit from Germany worth fooling with?
  46. 6v6 PP Pentode mode
  47. 5 pin octal tube socket
  48. RCA Manual Typo?
  49. pete millet low mu preamp
  50. Capability to drive the 211 PP
  51. 6BG6G SE advice needed.
  52. Signal Generator: Which one to buy ? What to look for in a signal generator ?
  53. Power booster
  54. I've just build this steroe amplifier
  55. What amp to build? Push Pull, SE? thoughts?
  56. amp sounds bad- fatman itube 252
  57. 6C33 single ended class A2 (cathode network question)
  58. Sweet Peach EL34b Amp - Distortion?
  59. 6C33C socket types, where to buy?
  60. haedphone amp. using 6418< NEED HELP
  61. finished my 6au6/807 amplifier
  62. Thinking about building an S5 16LS 16W amp I've got some questions for the forum./
  63. Broskie "Unbalancer" - transformer specifications
  64. Tube chess.
  65. How Its Made - Vacuum Tubes
  66. Please help me understand power supply load
  67. 12AU7 - How absolute are maximum ratings?
  68. Tube rejuvination
  69. Article: Samsung brings back tubes in audio dock
  70. 1st build suggestions
  71. Parallel SE output
  72. Fixed Bias question
  73. vintage ua 610 schematic
  74. Which KT88 PP and which Transformers?
  75. Some more special small-signal tv tubes
  76. MR 67 Coupling Caps
  77. Help - YAQIN MS-20L schematic
  78. Power and Speaker cables
  79. v1 tube keeps going microphonic help! 5e3 build
  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. Oil-filled caps: ASC versus Panasonic
  156. SOHA headphone amp
  157. Using a single triode as a .......
  158. Sonic Frontiers SFP-1 Phono Stage
  159. Help!! with attenuation.
  160. power up inrush current limiter - anyone using?
  161. Audioromy FU-29, Latest Model 828A Mini Review
  162. Vertical-deflection
  163. Drilling a hole
  164. Edcor CXPP25-MS-8K V Triode Z-565
  165. bad opt measured values
  166. Mu Follower Driver for Push-Pull
  167. Hickok 539 question...
  168. need datasheets for a phillips transformer if anyone has any
  169. Chicago power XFMR question.
  170. Coupling Capacitor - Pls Help
  171. Help please on Christmas gift
  172. Audio Note P-zero
  173. SE EL34 Schematic - What do you think?
  174. Playing with hybrid amp: SRPP + MOSFET
  175. 300B filament supply question
  176. KT88 Parallel Push Pull
  177. cheating life out of old tubes?
  178. dBu transformer ratings
  179. Dared MP-2a3c mods
  180. Output transformers (Wolpert)
  181. Using Mains Transformers as Outputs
  182. Tube just for show...
  183. first project - first post - poddwatt
  184. High power CCS
  185. Analog Summing
  186. My new el34 + 12ax7 VCT amp. (Need Ideas For my first headphone vacuum tube amp Too~)
  187. cascode tubes
  188. High Fidelity by Pilot (circa 1953)
  189. Hardware help please
  190. integrated amps 100 per channel
  191. KT88 mounting question
  192. Output Transformer question
  193. Angstrom Thermionic
  194. ECC88 tube buffer NEEDED !
  195. Marshall 8080, missing components
  196. Paralell SE 807 Amp design
  197. Putting together a tweaker friendly amplifier!
  198. Tube chassis
  199. DHT headphone Hybrid-CF+
  200. Looking for specs on this Beyer Xfmr
  201. Resistors for Berning EA-2101?
  202. Uneven Plate Glow
  203. Parafeed transformer sounds thin
  204. Lightbulbs as ccs
  205. My AWESOME First DIY amp
  206. Cary audio design SLI 80
  207. A1538 OPT?
  208. Genalex A2900 Keep or Sell?
  209. 6CB6 Spice Model wanted
  210. XFMR Help?
  211. 12 volt to 300 volt inverter question for tubes
  212. These amps should be verboten!
  213. how to use PCL86 instead of ecl86
  214. PSU for Aikido (4x 12SN7)
  215. SCA35 and AU-70
  216. Analisys of power amp limitations of tube bias range
  217. DIY Phono Preamp ??
  218. NOS 211 RCA or National Union?
  219. Iron Powder + Resin Output Transformer
  220. The Radio Hat Challenge
  221. EU regulations
  222. Transconductance for kt-90 in plain english
  223. Craftsmen RC-2
  224. Valve Amplification Company V100
  225. Parallel feed transformer with SRPP
  226. It's heeeeeere!- Valve Amplifiers 4th Edition
  227. opera consonance phonostage-PM1
  228. Anybody Explain this Preamp shematic?
  229. The high-voltage collection
  230. Input transformer topology question
  231. JE Labs 300Bdx stereo - troubleshooting
  232. battery operated 12/24/48 Volt multiple tube OTL
  233. Bringing up long-stored tube gear
  234. About RH84 three channel?
  235. MCC with Fisher
  236. Directly heated cathodes
  237. Build recommendation
  238. Ortofon KS 591 - informations
  239. Oatley K295-extra space for tubes
  240. A beginner's tube amp to drive a pair of fostex Fe103e
  241. Tame the beast.
  242. KT88 and Hammond Transformer
  243. B+ Drifts down after 2 hours
  244. Power amp sputters on turnoff
  245. Yet another EQP-1A
  246. How to bias 6SL7?
  247. 6CG7/6FQ7 = 6N5P (6Н5П)
  248. #27 mu stage
  249. Compactron Regulated Power Supply
  250. Best sounding voltage amplifier for hybride.

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