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  1. too much gain
  2. Lloyd's Vintage High Fidelity Audio Devices - both Tube and Solid State
  3. Cheap eBay "zoe_tsan" tube kits - worth anything?
  4. Bell Vintage High Fidelity Audio Devices - both Tube and Solid State
  5. Small Tube Amp with Hum
  6. tube rectifier question
  7. Unison Research S6 schematics
  8. vacuum tube amplifiers should be produced like this?
  9. 6d22s to 6cj3
  10. pot in tube preamp
  11. Mable Audio vs. Suppo audio sound quality
  12. swdfasdfsdf
  13. measuring heater voltage
  14. Need a circuit around these tubes.
  15. Single-Ended 13E1 amplifier
  16. Whats' the max allowable / reasonable ripple in SE amp?
  17. What amp kits are out there?
  18. ECC84/6N14P for audio
  19. PSU ignorant
  20. How to define a quality OT?
  21. Looking for some build advice
  22. ASC oil caps vs M-tube cap for ps
  23. SS CCS and distortion
  24. the valve with no markings
  25. Pentode AB1 design school???
  26. Capability of Sony/Tamradio SE Output Transformers
  27. my CELLINI triode amp
  28. 45-based SET -> Pass Labs F4
  29. Testing Amplifiers - Speaker or dummy load
  30. Quiet amp hums with signal source or input directly tied to star earth??
  31. amp output testing
  32. S5 Amp Comparison?
  33. How to Ground a Preamp PCB Board?
  34. RH807 / 6L6GC g2 issues
  35. 2010: Replacement for Black Gate WKZ 100uF+100uF 500V
  36. sunn solarus guitar amp
  37. Converting Dynaco ST70 Power Transformer for 12.6V
  38. Simple CF with 5687/6900/E182CC
  39. World Audio Design 5881 Schematic needed
  40. PP triode transformer load
  41. 6V6 PP load line
  42. Need help to under stand this 6n3 Kit from ebay
  43. Help:ampeg svt 2 pro 100v>>240v
  44. Blown left channel
  45. Tube preamp build help-heaters
  46. Medium Power SET, EL156 based
  47. Concertina Splitter question - Need help
  48. 6V6 amp - schematic options
  49. Lectron pa50+jh50
  50. 4pr60b valve
  51. Transformer phase splitter
  52. Help! ground hum
  53. Question regarding Leak Stereo 20 and 6SN7 line stage preamp
  54. Recommended upgrades for Yaqin Tube Buffer ?
  55. 6J5 or 6S4 mic amp?
  56. ST-70 build, ideas and advice
  57. Yaqin MC-100B Help Needed!
  58. Preamp Aikido : 6ax5GT,12au7,2c51
  59. Heater of tube
  60. R-Core Winders
  61. 1946 philco amp, tuner, record player
  62. otions for drawing tube schematics on Mac..?
  63. Push/Pull Plate Load Choke - how to figure Inductance?
  64. 6aw8-a tube question
  65. Newbie needs a point in the right direction
  66. Minimalist PL519 OTL?
  67. Telefunken schematics
  68. parallel pp EL84
  69. AD1 Operating Question
  70. 6П3С-Е Russian NOS: Gas Problem
  71. Favourite EL34 circuit
  72. Medium power SET with parallel OP tubes
  73. sds labs into Pas3
  74. Low voltage 6922 preamp...wanting a schematic
  75. Voltage Gain on Long Tailed Drivers
  76. Purpose of 5842 tube?!?
  77. MA XDSE KT88 vs YAQIN MC-100B KT88
  78. JBL Amplifier story
  79. Fender tweed pro-amp clone
  80. Recommended spacing for multiple 5AR4's
  81. Cap choices coupling
  82. Output transformer for PP EL34 source
  83. mini max pre
  84. use 2 ohm speakers
  85. Ask tube rect 5u4c and JJ caps
  86. Adding caps to prevent oscilation in AF 5687
  87. Williamson on EL84. Is it worth doing?
  88. CCS and regulated B+
  89. Garter cross-coupled feedback
  90. soundcard protection Z ???
  91. Using a CCS on SE Output Stage
  92. First amp build... help please!
  93. multiple independent grid biasing from 1 mosfet
  94. Eico HF-81 modification opinion
  95. 4K or 5K Output Transformer
  96. Noisy input on Michaelson & Austin TVA-1
  97. Precision Electronics S-35 help,
  98. Rogers Cadet 3 Problem
  99. Triode Electronics VS Hammond
  100. TRIODE OPERATION USING THE SCREEN GRIDS AS THE CONTROL GRID - this work ?
  101. Start up delay needed???
  102. Connecting a stereo amp as a mono-block
  103. HQ-DHT (All tube DHT amli) 26-45-2A3
  104. 24A tube in triode mode, help !!!
  105. Amperite Ballast
  106. Need super quiet 6.3V filament supply schematic
  107. (Sound Space)Houston 2A3 Power Amplifier
  108. James Burgess 2A3 Monoblocks
  109. Funny tube tale from southamerica
  110. RCA 7189 Black Plates
  111. Preamp nasty noise and hum
  112. EDCOR VS One Electron
  113. Parallel output tubes/valves in push pull. Advantages/disadvantages?
  114. Robinhood output transformers?
  115. looking for help diagnosing volume loss on tube amplified reel to reel player
  116. Question about power consumption Hagerman Cornet Octal
  117. valve rectifier in PSUD
  118. Can you explain what this is ?
  119. volume rise with frequency problem
  120. 1 + 1 = 3 :)
  121. What would the perfect multi-way speaker for a tube amp look like?
  122. GU50 compared with EL84
  123. Counterpoint SA-4 manual and schematics
  124. Ever heard of a Valvo 16ECC ?
  125. the Reversal SRPP
  126. Want to build a C3G linestage
  127. 30A5 tubes
  128. Good speakers to match a K-12
  129. Driving Long Cables, how much current?
  130. twin triode question
  131. Am I going to blow up my 7189s
  132. How is wattage calculated when only using a single section?
  133. Counterpoint SA5 problems and a question.
  134. Headphone Amplifier 6922EH
  135. Fuse Clip for Small Plate Cap Use
  136. Advice sought on medium power triode for tube headphone amplifier
  137. Not the 111M; A Precise 116 Tube Tester
  138. Input stage
  139. Does anyone have any FFT plots from real Class-AB tube amps?
  140. Testing for a Damaged Output Trafo
  141. What has happened to WE Huntsville lately?
  142. Output Transformers Sun HCT 1003 KT
  143. Plexiglass case for small tubes?
  144. 100 Best Sound Tubes
  145. Input tube bias
  146. eschematic amplifier sinle end 12at7 6av6 6bq5
  147. Wiring - Audio Note Transformer Parallel Single-Ended 300B
  148. HV using zener diode
  149. Akai M8 rebuild up and running!
  150. Best current production 2a3
  151. what happens when plugging a stereo source into mono jack on a tube amp?
  152. Transformer coupled Gainclone idea.
  153. Audio Research VT100
  154. output transformer turns per volt
  155. valves and metal cones= bad mating?
  156. Why do you need a grid to ground resistor on a line stage?
  157. Need some help with RIAA Preamp
  158. Swapping transformer cores
  159. got hold of a bunch of tubes...
  160. output transformer secondary configuration
  161. WE/Ultrapath B+ Where?
  162. Blending 12ax7 parallel gain stages
  163. Sudden spark.
  164. Priboj Reborn
  165. Misunderstand of sijosae schematic
  166. 12AX7 Identification
  167. GM70 Datasheet Error!!
  168. Using old Hammond iron
  169. Need confirmation on LED bias for circuit
  170. Tone control problems
  171. Tube Parameter "Attenuation, Harmonic" What is it?
  172. Bias adjust on '65 Twin Reverb Reissue AB763 - 2004?
  173. Need HELP on Randall RGT100ES 6L6 to EL34
  174. Tube amp with Dual Triode
  175. Fisher X-101-C bias question
  176. DC Current-Regulated 300B filaments?
  177. Anyone ever use DC to heat rectifier tubes?
  178. Tantalum Resistor Watt?
  179. Help Choosing Power Supply Voltage Regulator Aikido Phono Amp
  180. Best sounding remote control volume
  181. plate and screen voltage
  182. 12AT7 plate voltage
  183. Latest LTspice giving crazy FFT results
  184. Dynakit PC-3A as a balance pre?
  185. e283cc better sounding than?
  186. Porchlight Scratchbuild
  187. No output and Loud squeals! Help!
  188. Low mu triode for phase splitter
  189. Help figuring which is the center tap???
  190. Help with Paco SA-40
  191. Best tube/sonics
  192. One Half 12AU7
  193. 1939 Novachord - 163 Tube Monster!!
  194. Gyrators to replace PSU chokes?
  195. Output trannies for 6as7
  196. 2 Toroids = 1 Isolation Transformer?
  197. Finding Transformer Building Supplies
  198. Sagging Heaters
  199. Kofi Annan in: "Kofi's Baby Huey"
  200. Point to point wiring help
  201. help !! PTT2s Line stage
  202. Rickard Berglund, Sweden
  203. "The Sussex Homebrew Valve Tester"
  204. clipping
  205. Wanted: a couple of UNF bolts
  206. H-Bridge Amp Design
  207. need help with yaqin mc10l
  208. Watt the?
  209. DIY tube preamp with 5687
  210. Help with tube stereo build
  211. Tube recommendation for speakers
  212. Bogen mx60a Schematic
  213. Eliminating volume pot?
  214. CXPP100-MS-3.3K or CXPP100-MS-4.2K
  215. tube power supply voltage
  216. Driver Bypass Cap - Value?
  217. Tube bases and plate caps rant
  218. tube dual regulated psu needs amp
  219. Help me choose output transformers
  220. 12GT5-guitar amp.
  221. Verdier dual regulated tube psu
  222. Aikido Phono Amp Output Tubes 12AU7 and 12AX7?
  223. Mullard EL84 ID
  224. schematic request for transformer with 4k primary and UL taps
  225. Plate-Grid feedback: How to get better than DHT performance from cheaper tubes
  226. Anyone going to the Dayton Hamfest?
  227. More class D madness
  228. the SuperHybrid
  229. Tecon Model "55" final mods(?)
  230. Hammond P-T125E OPT
  231. Highbred Amp "TUMOS" Sounds good?
  232. 300B SET which chassis design
  233. Help with creating a simple tube HV regulated supply
  234. Tube Sockets for oddball miniatures
  235. McGohan M506 PA Guitar conversion mods.
  236. Bogen chb35a
  237. My last el84 PP tube amplifier
  238. Ultrapath - Advantages?
  239. Phono preamp with c/em2
  240. 12AY7 plate current
  241. OPT identification
  242. Resistor values at supply to anodes
  243. Typical output impedance for tube amps
  244. Problems with EM87 stereo level indicator for computer line out
  245. VR tube recommendation
  246. Mills MRA-5 resistors in tube circuits
  247. B&K Dyna-Quik 500 shows good tubes as Shorted
  248. Output transformers
  249. dbx 386 upgrade
  250. Sub 6n6p for 6n1p?

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