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  1. Best Complete KT88 Amp Kit under $1K?
  2. Webcor Musicale OT puzzle
  3. Audio Research SP3a
  4. Preamp Conordīs with some malfunctioning
  5. Oscillating PSU above certain voltage
  6. B+ voltage load line question
  7. ming da tube amp smell
  8. Rebuilding my amp, would like some input.
  9. do any of these cv4024s seem genuine to you?
  10. Stupid question: EL34 tubes.
  11. PP with Unbalanced concertina = 2nd H?
  12. harmonic distortion
  13. Enhanced Tube's performance
  14. New GU50 SE: SRRP or Cascode for driver?
  15. Hivac XN11 tubes
  16. Conrad Johnson PV-10a hum. Any advice?
  17. Bob Carver's eye candy on eBay
  18. MFA Lumi started "motor-boating" today
  19. New GM70 tube with problem
  20. Interested in building together a 300B tube amp?
  21. cayin a-55t want to use el34
  22. Mc240
  23. Dht ?
  24. too much output impedance?
  25. College-proofing an ST-70 (aka autobias+ST-70)
  26. reverse polarity of the chinese goods?
  27. 6bg6 and 8k opt power amp project
  28. Need some calculation assist for a psu
  29. Baldwin Transformer Swap
  30. THD, s/n and IM noisy measurements
  31. Little dot 2+, got spark
  32. (INDIA) urgent - high-quality amp builders/techs in Delhi?
  33. What causes saturation in tubes?
  34. Plug and Play Power Supply
  35. GE 5814 and 12AUCIFTE
  36. Amplifier oscillates - advice sought
  37. 50s Amplifier
  38. power supply design question 832A amp
  39. Klimo power supply advice
  40. Earth Not Connected
  41. DC heater supply for phono pre
  42. Audio Note P2SE problem
  43. Aikido Transformers - Good Choice?
  44. Caps before or after MOSFET V-regulator
  45. Which capacitors should I replace?
  46. Testing Amplifiers
  47. Choosing choke valuein pre amp tube
  48. Supertriode with PNP transistors
  49. too much gain
  50. Lloyd's Vintage High Fidelity Audio Devices - both Tube and Solid State
  51. Cheap eBay "zoe_tsan" tube kits - worth anything?
  52. Bell Vintage High Fidelity Audio Devices - both Tube and Solid State
  53. Small Tube Amp with Hum
  54. tube rectifier question
  55. Unison Research S6 schematics
  56. vacuum tube amplifiers should be produced like this?
  57. 6d22s to 6cj3
  58. pot in tube preamp
  59. Mable Audio vs. Suppo audio sound quality
  60. swdfasdfsdf
  61. measuring heater voltage
  62. Need a circuit around these tubes.
  63. Single-Ended 13E1 amplifier
  64. Whats' the max allowable / reasonable ripple in SE amp?
  65. What amp kits are out there?
  66. ECC84/6N14P for audio
  67. PSU ignorant
  68. How to define a quality OT?
  69. Looking for some build advice
  70. ASC oil caps vs M-tube cap for ps
  71. SS CCS and distortion
  72. the valve with no markings
  73. Pentode AB1 design school???
  74. Capability of Sony/Tamradio SE Output Transformers
  75. my CELLINI triode amp
  76. 45-based SET -> Pass Labs F4
  77. Testing Amplifiers - Speaker or dummy load
  78. Quiet amp hums with signal source or input directly tied to star earth??
  79. amp output testing
  80. S5 Amp Comparison?
  81. How to Ground a Preamp PCB Board?
  82. RH807 / 6L6GC g2 issues
  83. 2010: Replacement for Black Gate WKZ 100uF+100uF 500V
  84. sunn solarus guitar amp
  85. Converting Dynaco ST70 Power Transformer for 12.6V
  86. Simple CF with 5687/6900/E182CC
  87. World Audio Design 5881 Schematic needed
  88. PP triode transformer load
  89. 6V6 PP load line
  90. Need help to under stand this 6n3 Kit from ebay
  91. Help:ampeg svt 2 pro 100v>>240v
  92. Blown left channel
  93. Tube preamp build help-heaters
  94. Medium Power SET, EL156 based
  95. Concertina Splitter question - Need help
  96. 6V6 amp - schematic options
  97. Lectron pa50+jh50
  98. 4pr60b valve
  99. Transformer phase splitter
  100. Help! ground hum
  101. Question regarding Leak Stereo 20 and 6SN7 line stage preamp
  102. Recommended upgrades for Yaqin Tube Buffer ?
  103. 6J5 or 6S4 mic amp?
  104. ST-70 build, ideas and advice
  105. Yaqin MC-100B Help Needed!
  106. Preamp Aikido : 6ax5GT,12au7,2c51
  107. Heater of tube
  108. R-Core Winders
  109. 1946 philco amp, tuner, record player
  110. otions for drawing tube schematics on Mac..?
  111. Push/Pull Plate Load Choke - how to figure Inductance?
  112. 6aw8-a tube question
  113. Newbie needs a point in the right direction
  114. Minimalist PL519 OTL?
  115. Telefunken schematics
  116. parallel pp EL84
  117. AD1 Operating Question
  118. 6П3С-Е Russian NOS: Gas Problem
  119. Favourite EL34 circuit
  120. Medium power SET with parallel OP tubes
  121. sds labs into Pas3
  122. Low voltage 6922 preamp...wanting a schematic
  123. Voltage Gain on Long Tailed Drivers
  124. Purpose of 5842 tube?!?
  125. MA XDSE KT88 vs YAQIN MC-100B KT88
  126. JBL Amplifier story
  127. Fender tweed pro-amp clone
  128. Recommended spacing for multiple 5AR4's
  129. Cap choices coupling
  130. Output transformer for PP EL34 source
  131. mini max pre
  132. use 2 ohm speakers
  133. Ask tube rect 5u4c and JJ caps
  134. Adding caps to prevent oscilation in AF 5687
  135. Williamson on EL84. Is it worth doing?
  136. CCS and regulated B+
  137. Garter cross-coupled feedback
  138. soundcard protection Z ???
  139. Using a CCS on SE Output Stage
  140. First amp build... help please!
  141. multiple independent grid biasing from 1 mosfet
  142. Eico HF-81 modification opinion
  143. 4K or 5K Output Transformer
  144. Noisy input on Michaelson & Austin TVA-1
  145. Precision Electronics S-35 help,
  146. Rogers Cadet 3 Problem
  147. Triode Electronics VS Hammond
  148. TRIODE OPERATION USING THE SCREEN GRIDS AS THE CONTROL GRID - this work ?
  149. Start up delay needed???
  150. Connecting a stereo amp as a mono-block
  151. HQ-DHT (All tube DHT amli) 26-45-2A3
  152. 24A tube in triode mode, help !!!
  153. Amperite Ballast
  154. Need super quiet 6.3V filament supply schematic
  155. (Sound Space)Houston 2A3 Power Amplifier
  156. James Burgess 2A3 Monoblocks
  157. Funny tube tale from southamerica
  158. RCA 7189 Black Plates
  159. Preamp nasty noise and hum
  160. EDCOR VS One Electron
  161. Parallel output tubes/valves in push pull. Advantages/disadvantages?
  162. Robinhood output transformers?
  163. looking for help diagnosing volume loss on tube amplified reel to reel player
  164. Question about power consumption Hagerman Cornet Octal
  165. valve rectifier in PSUD
  166. Can you explain what this is ?
  167. volume rise with frequency problem
  168. 1 + 1 = 3 :)
  169. What would the perfect multi-way speaker for a tube amp look like?
  170. GU50 compared with EL84
  171. Counterpoint SA-4 manual and schematics
  172. Ever heard of a Valvo 16ECC ?
  173. the Reversal SRPP
  174. Want to build a C3G linestage
  175. 30A5 tubes
  176. Good speakers to match a K-12
  177. Driving Long Cables, how much current?
  178. twin triode question
  179. Am I going to blow up my 7189s
  180. How is wattage calculated when only using a single section?
  181. Counterpoint SA5 problems and a question.
  182. Headphone Amplifier 6922EH
  183. Fuse Clip for Small Plate Cap Use
  184. Advice sought on medium power triode for tube headphone amplifier
  185. Not the 111M; A Precise 116 Tube Tester
  186. Input stage
  187. Does anyone have any FFT plots from real Class-AB tube amps?
  188. Testing for a Damaged Output Trafo
  189. What has happened to WE Huntsville lately?
  190. Output Transformers Sun HCT 1003 KT
  191. Plexiglass case for small tubes?
  192. 100 Best Sound Tubes
  193. Input tube bias
  194. eschematic amplifier sinle end 12at7 6av6 6bq5
  195. Wiring - Audio Note Transformer Parallel Single-Ended 300B
  196. HV using zener diode
  197. Akai M8 rebuild up and running!
  198. Best current production 2a3
  199. what happens when plugging a stereo source into mono jack on a tube amp?
  200. Transformer coupled Gainclone idea.
  201. Audio Research VT100
  202. output transformer turns per volt
  203. valves and metal cones= bad mating?
  204. Why do you need a grid to ground resistor on a line stage?
  205. Need some help with RIAA Preamp
  206. Swapping transformer cores
  207. got hold of a bunch of tubes...
  208. output transformer secondary configuration
  209. WE/Ultrapath B+ Where?
  210. Blending 12ax7 parallel gain stages
  211. Sudden spark.
  212. Priboj Reborn
  213. Misunderstand of sijosae schematic
  214. 12AX7 Identification
  215. GM70 Datasheet Error!!
  216. Using old Hammond iron
  217. Need confirmation on LED bias for circuit
  218. Tone control problems
  219. Tube Parameter "Attenuation, Harmonic" What is it?
  220. Bias adjust on '65 Twin Reverb Reissue AB763 - 2004?
  221. Need HELP on Randall RGT100ES 6L6 to EL34
  222. Tube amp with Dual Triode
  223. Fisher X-101-C bias question
  224. DC Current-Regulated 300B filaments?
  225. Anyone ever use DC to heat rectifier tubes?
  226. Tantalum Resistor Watt?
  227. Help Choosing Power Supply Voltage Regulator Aikido Phono Amp
  228. Best sounding remote control volume
  229. plate and screen voltage
  230. 12AT7 plate voltage
  231. Latest LTspice giving crazy FFT results
  232. Dynakit PC-3A as a balance pre?
  233. e283cc better sounding than?
  234. Porchlight Scratchbuild
  235. No output and Loud squeals! Help!
  236. Low mu triode for phase splitter
  237. Help figuring which is the center tap???
  238. Help with Paco SA-40
  239. Best tube/sonics
  240. One Half 12AU7
  241. 1939 Novachord - 163 Tube Monster!!
  242. Gyrators to replace PSU chokes?
  243. Output trannies for 6as7
  244. 2 Toroids = 1 Isolation Transformer?
  245. Finding Transformer Building Supplies
  246. Sagging Heaters
  247. Kofi Annan in: "Kofi's Baby Huey"
  248. Point to point wiring help
  249. help !! PTT2s Line stage
  250. Rickard Berglund, Sweden

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