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  1. do any of these cv4024s seem genuine to you?
  2. Stupid question: EL34 tubes.
  3. PP with Unbalanced concertina = 2nd H?
  4. harmonic distortion
  5. Enhanced Tube's performance
  6. New GU50 SE: SRRP or Cascode for driver?
  7. Hivac XN11 tubes
  8. Conrad Johnson PV-10a hum. Any advice?
  9. Bob Carver's eye candy on eBay
  10. MFA Lumi started "motor-boating" today
  11. New GM70 tube with problem
  12. Interested in building together a 300B tube amp?
  13. cayin a-55t want to use el34
  14. Mc240
  15. Dht ?
  16. too much output impedance?
  17. College-proofing an ST-70 (aka autobias+ST-70)
  18. reverse polarity of the chinese goods?
  19. 6bg6 and 8k opt power amp project
  20. Need some calculation assist for a psu
  21. Baldwin Transformer Swap
  22. THD, s/n and IM noisy measurements
  23. Little dot 2+, got spark
  24. (INDIA) urgent - high-quality amp builders/techs in Delhi?
  25. What causes saturation in tubes?
  26. Plug and Play Power Supply
  27. GE 5814 and 12AUCIFTE
  28. Amplifier oscillates - advice sought
  29. 50s Amplifier
  30. power supply design question 832A amp
  31. Klimo power supply advice
  32. Earth Not Connected
  33. DC heater supply for phono pre
  34. Audio Note P2SE problem
  35. Aikido Transformers - Good Choice?
  36. Caps before or after MOSFET V-regulator
  37. Which capacitors should I replace?
  38. Testing Amplifiers
  39. Choosing choke valuein pre amp tube
  40. Supertriode with PNP transistors
  41. too much gain
  42. Lloyd's Vintage High Fidelity Audio Devices - both Tube and Solid State
  43. Cheap eBay "zoe_tsan" tube kits - worth anything?
  44. Bell Vintage High Fidelity Audio Devices - both Tube and Solid State
  45. Small Tube Amp with Hum
  46. tube rectifier question
  47. Unison Research S6 schematics
  48. vacuum tube amplifiers should be produced like this?
  49. 6d22s to 6cj3
  50. pot in tube preamp
  51. Mable Audio vs. Suppo audio sound quality
  52. swdfasdfsdf
  53. measuring heater voltage
  54. Need a circuit around these tubes.
  55. Single-Ended 13E1 amplifier
  56. Whats' the max allowable / reasonable ripple in SE amp?
  57. What amp kits are out there?
  58. ECC84/6N14P for audio
  59. PSU ignorant
  60. How to define a quality OT?
  61. Looking for some build advice
  62. SS CCS and distortion
  63. the valve with no markings
  64. Pentode AB1 design school???
  65. Capability of Sony/Tamradio SE Output Transformers
  66. my CELLINI triode amp
  67. 45-based SET -> Pass Labs F4
  68. Testing Amplifiers - Speaker or dummy load
  69. Quiet amp hums with signal source or input directly tied to star earth??
  70. amp output testing
  71. S5 Amp Comparison?
  72. How to Ground a Preamp PCB Board?
  73. RH807 / 6L6GC g2 issues
  74. 2010: Replacement for Black Gate WKZ 100uF+100uF 500V
  75. Converting Dynaco ST70 Power Transformer for 12.6V
  76. Simple CF with 5687/6900/E182CC
  77. World Audio Design 5881 Schematic needed
  78. PP triode transformer load
  79. 6V6 PP load line
  80. Need help to under stand this 6n3 Kit from ebay
  81. Blown left channel
  82. Tube preamp build help-heaters
  83. Medium Power SET, EL156 based
  84. Concertina Splitter question - Need help
  85. 6V6 amp - schematic options
  86. Lectron pa50+jh50
  87. 4pr60b valve
  88. Transformer phase splitter
  89. Help! ground hum
  90. Question regarding Leak Stereo 20 and 6SN7 line stage preamp
  91. Recommended upgrades for Yaqin Tube Buffer ?
  92. 6J5 or 6S4 mic amp?
  93. ST-70 build, ideas and advice
  94. Yaqin MC-100B Help Needed!
  95. Preamp Aikido : 6ax5GT,12au7,2c51
  96. Heater of tube
  97. R-Core Winders
  98. 1946 philco amp, tuner, record player
  99. otions for drawing tube schematics on Mac..?
  100. Push/Pull Plate Load Choke - how to figure Inductance?
  101. 6aw8-a tube question
  102. Newbie needs a point in the right direction
  103. Minimalist PL519 OTL?
  104. Telefunken schematics
  105. parallel pp EL84
  106. AD1 Operating Question
  107. 6П3С-Е Russian NOS: Gas Problem
  108. Favourite EL34 circuit
  109. Medium power SET with parallel OP tubes
  110. sds labs into Pas3
  111. Low voltage 6922 preamp...wanting a schematic
  112. Voltage Gain on Long Tailed Drivers
  113. Purpose of 5842 tube?!?
  114. MA XDSE KT88 vs YAQIN MC-100B KT88
  115. JBL Amplifier story
  116. Recommended spacing for multiple 5AR4's
  117. Cap choices coupling
  118. Output transformer for PP EL34 source
  119. mini max pre
  120. use 2 ohm speakers
  121. Ask tube rect 5u4c and JJ caps
  122. Adding caps to prevent oscilation in AF 5687
  123. Williamson on EL84. Is it worth doing?
  124. CCS and regulated B+
  125. Garter cross-coupled feedback
  126. soundcard protection Z ???
  127. Using a CCS on SE Output Stage
  128. First amp build... help please!
  129. multiple independent grid biasing from 1 mosfet
  130. Eico HF-81 modification opinion
  131. 4K or 5K Output Transformer
  132. Noisy input on Michaelson & Austin TVA-1
  133. Precision Electronics S-35 help,
  134. Rogers Cadet 3 Problem
  135. Triode Electronics VS Hammond
  136. TRIODE OPERATION USING THE SCREEN GRIDS AS THE CONTROL GRID - this work ?
  137. Start up delay needed???
  138. Connecting a stereo amp as a mono-block
  139. HQ-DHT (All tube DHT amli) 26-45-2A3
  140. 24A tube in triode mode, help !!!
  141. Amperite Ballast
  142. Need super quiet 6.3V filament supply schematic
  143. (Sound Space)Houston 2A3 Power Amplifier
  144. James Burgess 2A3 Monoblocks
  145. Funny tube tale from southamerica
  146. RCA 7189 Black Plates
  147. Preamp nasty noise and hum
  148. EDCOR VS One Electron
  149. Parallel output tubes/valves in push pull. Advantages/disadvantages?
  150. Robinhood output transformers?
  151. looking for help diagnosing volume loss on tube amplified reel to reel player
  152. Question about power consumption Hagerman Cornet Octal
  153. valve rectifier in PSUD
  154. Can you explain what this is ?
  155. volume rise with frequency problem
  156. 1 + 1 = 3 :)
  157. What would the perfect multi-way speaker for a tube amp look like?
  158. GU50 compared with EL84
  159. Counterpoint SA-4 manual and schematics
  160. Ever heard of a Valvo 16ECC ?
  161. the Reversal SRPP
  162. Want to build a C3G linestage
  163. 30A5 tubes
  164. Good speakers to match a K-12
  165. Driving Long Cables, how much current?
  166. twin triode question
  167. Am I going to blow up my 7189s
  168. How is wattage calculated when only using a single section?
  169. Counterpoint SA5 problems and a question.
  170. Headphone Amplifier 6922EH
  171. Fuse Clip for Small Plate Cap Use
  172. Advice sought on medium power triode for tube headphone amplifier
  173. Not the 111M; A Precise 116 Tube Tester
  174. Input stage
  175. Does anyone have any FFT plots from real Class-AB tube amps?
  176. Testing for a Damaged Output Trafo
  177. What has happened to WE Huntsville lately?
  178. Output Transformers Sun HCT 1003 KT
  179. Plexiglass case for small tubes?
  180. 100 Best Sound Tubes
  181. Input tube bias
  182. eschematic amplifier sinle end 12at7 6av6 6bq5
  183. Wiring - Audio Note Transformer Parallel Single-Ended 300B
  184. HV using zener diode
  185. Akai M8 rebuild up and running!
  186. Best current production 2a3
  187. what happens when plugging a stereo source into mono jack on a tube amp?
  188. Transformer coupled Gainclone idea.
  189. Audio Research VT100
  190. output transformer turns per volt
  191. valves and metal cones= bad mating?
  192. Why do you need a grid to ground resistor on a line stage?
  193. Need some help with RIAA Preamp
  194. Swapping transformer cores
  195. got hold of a bunch of tubes...
  196. output transformer secondary configuration
  197. WE/Ultrapath B+ Where?
  198. Blending 12ax7 parallel gain stages
  199. Sudden spark.
  200. Priboj Reborn
  201. Misunderstand of sijosae schematic
  202. 12AX7 Identification
  203. GM70 Datasheet Error!!
  204. Using old Hammond iron
  205. Need confirmation on LED bias for circuit
  206. Tube Parameter "Attenuation, Harmonic" What is it?
  207. Tube amp with Dual Triode
  208. Fisher X-101-C bias question
  209. DC Current-Regulated 300B filaments?
  210. Anyone ever use DC to heat rectifier tubes?
  211. Tantalum Resistor Watt?
  212. Help Choosing Power Supply Voltage Regulator Aikido Phono Amp
  213. Best sounding remote control volume
  214. plate and screen voltage
  215. 12AT7 plate voltage
  216. Latest LTspice giving crazy FFT results
  217. Dynakit PC-3A as a balance pre?
  218. e283cc better sounding than?
  219. Porchlight Scratchbuild
  220. No output and Loud squeals! Help!
  221. Low mu triode for phase splitter
  222. Help figuring which is the center tap???
  223. Help with Paco SA-40
  224. Best tube/sonics
  225. One Half 12AU7
  226. Gyrators to replace PSU chokes?
  227. Output trannies for 6as7
  228. 2 Toroids = 1 Isolation Transformer?
  229. Finding Transformer Building Supplies
  230. Sagging Heaters
  231. Kofi Annan in: "Kofi's Baby Huey"
  232. Point to point wiring help
  233. help !! PTT2s Line stage
  234. Rickard Berglund, Sweden
  235. "The Sussex Homebrew Valve Tester"
  236. clipping
  237. Wanted: a couple of UNF bolts
  238. H-Bridge Amp Design
  239. need help with yaqin mc10l
  240. Watt the?
  241. DIY tube preamp with 5687
  242. Help with tube stereo build
  243. Tube recommendation for speakers
  244. Eliminating volume pot?
  245. CXPP100-MS-3.3K or CXPP100-MS-4.2K
  246. tube power supply voltage
  247. Driver Bypass Cap - Value?
  248. Tube bases and plate caps rant
  249. tube dual regulated psu needs amp
  250. Help me choose output transformers

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