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  1. First amp build... help please!
  2. multiple independent grid biasing from 1 mosfet
  3. Eico HF-81 modification opinion
  4. 4K or 5K Output Transformer
  5. Noisy input on Michaelson & Austin TVA-1
  6. Precision Electronics S-35 help,
  7. Rogers Cadet 3 Problem
  8. Triode Electronics VS Hammond
  9. TRIODE OPERATION USING THE SCREEN GRIDS AS THE CONTROL GRID - this work ?
  10. Start up delay needed???
  11. Connecting a stereo amp as a mono-block
  12. HQ-DHT (All tube DHT amli) 26-45-2A3
  13. 24A tube in triode mode, help !!!
  14. Amperite Ballast
  15. Need super quiet 6.3V filament supply schematic
  16. (Sound Space)Houston 2A3 Power Amplifier
  17. James Burgess 2A3 Monoblocks
  18. Funny tube tale from southamerica
  19. RCA 7189 Black Plates
  20. Preamp nasty noise and hum
  21. EDCOR VS One Electron
  22. Parallel output tubes/valves in push pull. Advantages/disadvantages?
  23. Robinhood output transformers?
  24. looking for help diagnosing volume loss on tube amplified reel to reel player
  25. Question about power consumption Hagerman Cornet Octal
  26. valve rectifier in PSUD
  27. Can you explain what this is ?
  28. volume rise with frequency problem
  29. 1 + 1 = 3 :)
  30. What would the perfect multi-way speaker for a tube amp look like?
  31. GU50 compared with EL84
  32. Counterpoint SA-4 manual and schematics
  33. Ever heard of a Valvo 16ECC ?
  34. the Reversal SRPP
  35. Want to build a C3G linestage
  36. 30A5 tubes
  37. Good speakers to match a K-12
  38. Driving Long Cables, how much current?
  39. twin triode question
  40. Am I going to blow up my 7189s
  41. How is wattage calculated when only using a single section?
  42. Counterpoint SA5 problems and a question.
  43. Headphone Amplifier 6922EH
  44. Fuse Clip for Small Plate Cap Use
  45. Advice sought on medium power triode for tube headphone amplifier
  46. Not the 111M; A Precise 116 Tube Tester
  47. Input stage
  48. Does anyone have any FFT plots from real Class-AB tube amps?
  49. Testing for a Damaged Output Trafo
  50. What has happened to WE Huntsville lately?
  51. Output Transformers Sun HCT 1003 KT
  52. Plexiglass case for small tubes?
  53. 100 Best Sound Tubes
  54. Input tube bias
  55. eschematic amplifier sinle end 12at7 6av6 6bq5
  56. Wiring - Audio Note Transformer Parallel Single-Ended 300B
  57. HV using zener diode
  58. Akai M8 rebuild up and running!
  59. Best current production 2a3
  60. what happens when plugging a stereo source into mono jack on a tube amp?
  61. Transformer coupled Gainclone idea.
  62. Audio Research VT100
  63. output transformer turns per volt
  64. valves and metal cones= bad mating?
  65. Why do you need a grid to ground resistor on a line stage?
  66. Need some help with RIAA Preamp
  67. Swapping transformer cores
  68. got hold of a bunch of tubes...
  69. output transformer secondary configuration
  70. WE/Ultrapath B+ Where?
  71. Blending 12ax7 parallel gain stages
  72. Sudden spark.
  73. Priboj Reborn
  74. Misunderstand of sijosae schematic
  75. 12AX7 Identification
  76. GM70 Datasheet Error!!
  77. Using old Hammond iron
  78. Need confirmation on LED bias for circuit
  79. Tone control problems
  80. Tube Parameter "Attenuation, Harmonic" What is it?
  81. Bias adjust on '65 Twin Reverb Reissue AB763 - 2004?
  82. Need HELP on Randall RGT100ES 6L6 to EL34
  83. Tube amp with Dual Triode
  84. Fisher X-101-C bias question
  85. DC Current-Regulated 300B filaments?
  86. Anyone ever use DC to heat rectifier tubes?
  87. Tantalum Resistor Watt?
  88. Help Choosing Power Supply Voltage Regulator Aikido Phono Amp
  89. Best sounding remote control volume
  90. plate and screen voltage
  91. 12AT7 plate voltage
  92. Latest LTspice giving crazy FFT results
  93. Dynakit PC-3A as a balance pre?
  94. e283cc better sounding than?
  95. Porchlight Scratchbuild
  96. No output and Loud squeals! Help!
  97. Low mu triode for phase splitter
  98. Help figuring which is the center tap???
  99. Help with Paco SA-40
  100. Best tube/sonics
  101. One Half 12AU7
  102. 1939 Novachord - 163 Tube Monster!!
  103. Gyrators to replace PSU chokes?
  104. Output trannies for 6as7
  105. 2 Toroids = 1 Isolation Transformer?
  106. Finding Transformer Building Supplies
  107. Sagging Heaters
  108. Kofi Annan in: "Kofi's Baby Huey"
  109. Point to point wiring help
  110. help !! PTT2s Line stage
  111. Rickard Berglund, Sweden
  112. "The Sussex Homebrew Valve Tester"
  113. clipping
  114. Wanted: a couple of UNF bolts
  115. H-Bridge Amp Design
  116. need help with yaqin mc10l
  117. Watt the?
  118. DIY tube preamp with 5687
  119. Help with tube stereo build
  120. Tube recommendation for speakers
  121. Bogen mx60a Schematic
  122. Eliminating volume pot?
  123. CXPP100-MS-3.3K or CXPP100-MS-4.2K
  124. tube power supply voltage
  125. Driver Bypass Cap - Value?
  126. Tube bases and plate caps rant
  127. tube dual regulated psu needs amp
  128. Help me choose output transformers
  129. 12GT5-guitar amp.
  130. Verdier dual regulated tube psu
  131. Aikido Phono Amp Output Tubes 12AU7 and 12AX7?
  132. Mullard EL84 ID
  133. schematic request for transformer with 4k primary and UL taps
  134. Plate-Grid feedback: How to get better than DHT performance from cheaper tubes
  135. Anyone going to the Dayton Hamfest?
  136. More class D madness
  137. the SuperHybrid
  138. Tecon Model "55" final mods(?)
  139. Hammond P-T125E OPT
  140. Highbred Amp "TUMOS" Sounds good?
  141. 300B SET which chassis design
  142. Help with creating a simple tube HV regulated supply
  143. Tube Sockets for oddball miniatures
  144. McGohan M506 PA Guitar conversion mods.
  145. Bogen chb35a
  146. My last el84 PP tube amplifier
  147. Ultrapath - Advantages?
  148. Phono preamp with c/em2
  149. 12AY7 plate current
  150. OPT identification
  151. Resistor values at supply to anodes
  152. Typical output impedance for tube amps
  153. Problems with EM87 stereo level indicator for computer line out
  154. VR tube recommendation
  155. Mills MRA-5 resistors in tube circuits
  156. B&K Dyna-Quik 500 shows good tubes as Shorted
  157. Output transformers
  158. dbx 386 upgrade
  159. Sub 6n6p for 6n1p?
  160. SET Amp History in Japan
  161. Grid Bias or Cathode Bias
  162. Oscillating CJ PV-5
  163. FireFly Single Ended Tetrode
  164. Aikido front end for a SE 6C33S
  165. Ground Plane vs Star earth
  166. Circuit board with long post??
  167. ecc804 as Phase Splitter
  168. What can you do with a 3a5?
  169. Auto Wave soldering sockets
  170. Using diode for biasing
  171. No bass in 300b amp
  172. Tube socket and pin cleaning
  173. Help With Left Channel Hum
  174. Volume pot has rustling sound
  175. How best to distribute heater windings
  176. 30MB6 data
  177. Kofi Annan in: "Pushed and Pulled Back!"
  178. How dangerous is it to build an SET?
  179. 6as7 SE OTL
  180. Melody Roll
  181. 8417 Output Transformer
  182. Do you still need matched tubes if running a CCS ?
  183. Is a LM335 a direct replacement for a LM317T?
  184. Bias worry
  185. About the tube 6463
  186. awesome RCA MI 12158 tube amp project
  187. Crazy idea: Output tranny with constant magnetic gap?
  188. Most linear triode-strapped pentode
  189. Aikidio Phono Amp Questions
  190. Sample and Hold
  191. Big push-pull power for dummies
  192. Foxtrot Guitar Amp - Output transformer
  193. Taking my KT88 SE E-linear amp to the next level (long)
  194. Aikido Janus Shunt PSU
  195. 12b4a phase splitter! The best?
  196. Sansui 500EA vs. 500A
  197. Cascoded Ring of Two for Plate Load
  198. 6SL7 distortion
  199. My new PL36 Push-Pull amp
  200. adding line out to guitar tube preamp
  201. Thyratrons
  202. Tube ampl. for repair
  203. Date codes
  204. China Sountrack KT88 need shematic
  205. Anyone know anything about the Luxman A-2003 tube xover?
  206. Dynamic negative feedback?
  207. Need help with Ampeg J-20 crackling buzzing hissing noise issue/blocking distortion?
  208. New bie: some questions, want to start DIY pre amp
  209. Power Transformer issue
  210. Guess That Tube
  211. Poor soundstage with SET 300B
  212. Dedicated ESL amp -- please comment
  213. Buzzing AC relay coil
  214. Stereo amp parallel wired to mono - possible?
  215. Need biasing advice, cathode biased amp.
  216. Before I go ahead and build this...
  217. Beginner Tube Stereo
  218. 6AU6 and 6J5 for Guitar amp or pedal?
  219. Morgan Jones and the ECC88/6922/6DJ8
  220. Help with matching speaker impedance to old tube amp
  221. srpp 2a3 power supply
  222. 12AX7 Tube Question
  223. New problem with Music Angel KT88
  224. Need help changing 12V heater to 6V
  225. Phono cathode follower challenge!!
  226. 6au6 for stereo?
  227. determining input/output impedance
  228. "Singing" output transformers
  229. Sustitute 5842 for EC86
  230. Vege-toobz ;)
  231. precision electronics inc. tube guitar amplifier
  232. Bad channel in RCA Victor Console
  233. Did tone bypass on PAS what about caps
  234. Pe06/40n
  235. Anyone own an HH Scott LK-72 Integrated amp?
  236. HELP!! Howling K12G!!
  237. McIntosh MC60 Bias question
  238. Connecting a MF tube buffer directly to AKM DAC
  239. How to evaluate RF tubes for power and fidelity?
  240. Amity Amp Nutshell Audio
  241. 8086 Tubes?
  242. Lil' Devil P-P Amp
  243. 6SN7 vs. 6SL7 in Darling amp
  244. BBC AM8/6 mono tube amp schematic
  245. ST70 works with PAS but not another preamp
  246. Freds in 6X5 psu?
  247. Hi-End 50W Push-Amplifier inspired to AudioResearch
  248. Audioromy fu-29 - push pull!
  249. Help - MS-6V6 Yaqin schematic
  250. High Voltage Direct Drive amplifier for Plasma loudspeaker

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