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  1. Noisy input on Michaelson & Austin TVA-1
  2. Precision Electronics S-35 help,
  3. Rogers Cadet 3 Problem
  4. Triode Electronics VS Hammond
  5. TRIODE OPERATION USING THE SCREEN GRIDS AS THE CONTROL GRID - this work ?
  6. Start up delay needed???
  7. Connecting a stereo amp as a mono-block
  8. HQ-DHT (All tube DHT amli) 26-45-2A3
  9. 24A tube in triode mode, help !!!
  10. Amperite Ballast
  11. Need super quiet 6.3V filament supply schematic
  12. (Sound Space)Houston 2A3 Power Amplifier
  13. James Burgess 2A3 Monoblocks
  14. Funny tube tale from southamerica
  15. RCA 7189 Black Plates
  16. Preamp nasty noise and hum
  17. EDCOR VS One Electron
  18. Parallel output tubes/valves in push pull. Advantages/disadvantages?
  19. Robinhood output transformers?
  20. looking for help diagnosing volume loss on tube amplified reel to reel player
  21. Question about power consumption Hagerman Cornet Octal
  22. valve rectifier in PSUD
  23. Can you explain what this is ?
  24. volume rise with frequency problem
  25. 1 + 1 = 3 :)
  26. What would the perfect multi-way speaker for a tube amp look like?
  27. GU50 compared with EL84
  28. Counterpoint SA-4 manual and schematics
  29. Ever heard of a Valvo 16ECC ?
  30. the Reversal SRPP
  31. Want to build a C3G linestage
  32. 30A5 tubes
  33. Good speakers to match a K-12
  34. Driving Long Cables, how much current?
  35. twin triode question
  36. Am I going to blow up my 7189s
  37. How is wattage calculated when only using a single section?
  38. Counterpoint SA5 problems and a question.
  39. Headphone Amplifier 6922EH
  40. Fuse Clip for Small Plate Cap Use
  41. Advice sought on medium power triode for tube headphone amplifier
  42. Not the 111M; A Precise 116 Tube Tester
  43. Input stage
  44. Does anyone have any FFT plots from real Class-AB tube amps?
  45. Testing for a Damaged Output Trafo
  46. What has happened to WE Huntsville lately?
  47. Output Transformers Sun HCT 1003 KT
  48. Plexiglass case for small tubes?
  49. 100 Best Sound Tubes
  50. Input tube bias
  51. eschematic amplifier sinle end 12at7 6av6 6bq5
  52. Wiring - Audio Note Transformer Parallel Single-Ended 300B
  53. HV using zener diode
  54. Akai M8 rebuild up and running!
  55. Best current production 2a3
  56. what happens when plugging a stereo source into mono jack on a tube amp?
  57. Transformer coupled Gainclone idea.
  58. Audio Research VT100
  59. output transformer turns per volt
  60. valves and metal cones= bad mating?
  61. Why do you need a grid to ground resistor on a line stage?
  62. Need some help with RIAA Preamp
  63. Swapping transformer cores
  64. got hold of a bunch of tubes...
  65. output transformer secondary configuration
  66. WE/Ultrapath B+ Where?
  67. Blending 12ax7 parallel gain stages
  68. Sudden spark.
  69. Priboj Reborn
  70. Misunderstand of sijosae schematic
  71. 12AX7 Identification
  72. GM70 Datasheet Error!!
  73. Using old Hammond iron
  74. Need confirmation on LED bias for circuit
  75. Tone control problems
  76. Tube Parameter "Attenuation, Harmonic" What is it?
  77. Bias adjust on '65 Twin Reverb Reissue AB763 - 2004?
  78. Need HELP on Randall RGT100ES 6L6 to EL34
  79. Tube amp with Dual Triode
  80. Fisher X-101-C bias question
  81. DC Current-Regulated 300B filaments?
  82. Anyone ever use DC to heat rectifier tubes?
  83. Tantalum Resistor Watt?
  84. Help Choosing Power Supply Voltage Regulator Aikido Phono Amp
  85. Best sounding remote control volume
  86. plate and screen voltage
  87. 12AT7 plate voltage
  88. Latest LTspice giving crazy FFT results
  89. Dynakit PC-3A as a balance pre?
  90. e283cc better sounding than?
  91. Porchlight Scratchbuild
  92. No output and Loud squeals! Help!
  93. Low mu triode for phase splitter
  94. Help figuring which is the center tap???
  95. Help with Paco SA-40
  96. Best tube/sonics
  97. One Half 12AU7
  98. 1939 Novachord - 163 Tube Monster!!
  99. Gyrators to replace PSU chokes?
  100. Output trannies for 6as7
  101. 2 Toroids = 1 Isolation Transformer?
  102. Finding Transformer Building Supplies
  103. Sagging Heaters
  104. Kofi Annan in: "Kofi's Baby Huey"
  105. Point to point wiring help
  106. help !! PTT2s Line stage
  107. Rickard Berglund, Sweden
  108. "The Sussex Homebrew Valve Tester"
  109. clipping
  110. Wanted: a couple of UNF bolts
  111. H-Bridge Amp Design
  112. need help with yaqin mc10l
  113. Watt the?
  114. DIY tube preamp with 5687
  115. Help with tube stereo build
  116. Tube recommendation for speakers
  117. Bogen mx60a Schematic
  118. Eliminating volume pot?
  119. CXPP100-MS-3.3K or CXPP100-MS-4.2K
  120. tube power supply voltage
  121. Driver Bypass Cap - Value?
  122. Tube bases and plate caps rant
  123. tube dual regulated psu needs amp
  124. Help me choose output transformers
  125. 12GT5-guitar amp.
  126. Verdier dual regulated tube psu
  127. Aikido Phono Amp Output Tubes 12AU7 and 12AX7?
  128. Mullard EL84 ID
  129. schematic request for transformer with 4k primary and UL taps
  130. Plate-Grid feedback: How to get better than DHT performance from cheaper tubes
  131. Anyone going to the Dayton Hamfest?
  132. More class D madness
  133. the SuperHybrid
  134. Tecon Model "55" final mods(?)
  135. Hammond P-T125E OPT
  136. Highbred Amp "TUMOS" Sounds good?
  137. 300B SET which chassis design
  138. Help with creating a simple tube HV regulated supply
  139. Tube Sockets for oddball miniatures
  140. McGohan M506 PA Guitar conversion mods.
  141. Bogen chb35a
  142. My last el84 PP tube amplifier
  143. Ultrapath - Advantages?
  144. Phono preamp with c/em2
  145. 12AY7 plate current
  146. OPT identification
  147. Resistor values at supply to anodes
  148. Typical output impedance for tube amps
  149. Problems with EM87 stereo level indicator for computer line out
  150. VR tube recommendation
  151. Mills MRA-5 resistors in tube circuits
  152. B&K Dyna-Quik 500 shows good tubes as Shorted
  153. Output transformers
  154. dbx 386 upgrade
  155. Sub 6n6p for 6n1p?
  156. SET Amp History in Japan
  157. Grid Bias or Cathode Bias
  158. Oscillating CJ PV-5
  159. FireFly Single Ended Tetrode
  160. Aikido front end for a SE 6C33S
  161. Ground Plane vs Star earth
  162. Circuit board with long post??
  163. ecc804 as Phase Splitter
  164. What can you do with a 3a5?
  165. Auto Wave soldering sockets
  166. Using diode for biasing
  167. No bass in 300b amp
  168. Tube socket and pin cleaning
  169. Help With Left Channel Hum
  170. Volume pot has rustling sound
  171. How best to distribute heater windings
  172. 30MB6 data
  173. Kofi Annan in: "Pushed and Pulled Back!"
  174. How dangerous is it to build an SET?
  175. 6as7 SE OTL
  176. Melody Roll
  177. 8417 Output Transformer
  178. Do you still need matched tubes if running a CCS ?
  179. Is a LM335 a direct replacement for a LM317T?
  180. Bias worry
  181. About the tube 6463
  182. awesome RCA MI 12158 tube amp project
  183. Crazy idea: Output tranny with constant magnetic gap?
  184. Most linear triode-strapped pentode
  185. Aikidio Phono Amp Questions
  186. Sample and Hold
  187. Big push-pull power for dummies
  188. Foxtrot Guitar Amp - Output transformer
  189. Taking my KT88 SE E-linear amp to the next level (long)
  190. Aikido Janus Shunt PSU
  191. 12b4a phase splitter! The best?
  192. Sansui 500EA vs. 500A
  193. Cascoded Ring of Two for Plate Load
  194. 6SL7 distortion
  195. My new PL36 Push-Pull amp
  196. adding line out to guitar tube preamp
  197. Thyratrons
  198. Tube ampl. for repair
  199. Date codes
  200. China Sountrack KT88 need shematic
  201. Anyone know anything about the Luxman A-2003 tube xover?
  202. Dynamic negative feedback?
  203. Need help with Ampeg J-20 crackling buzzing hissing noise issue/blocking distortion?
  204. New bie: some questions, want to start DIY pre amp
  205. Power Transformer issue
  206. Guess That Tube
  207. Poor soundstage with SET 300B
  208. Dedicated ESL amp -- please comment
  209. Buzzing AC relay coil
  210. Stereo amp parallel wired to mono - possible?
  211. Need biasing advice, cathode biased amp.
  212. Before I go ahead and build this...
  213. Beginner Tube Stereo
  214. 6AU6 and 6J5 for Guitar amp or pedal?
  215. Morgan Jones and the ECC88/6922/6DJ8
  216. Help with matching speaker impedance to old tube amp
  217. srpp 2a3 power supply
  218. 12AX7 Tube Question
  219. New problem with Music Angel KT88
  220. Need help changing 12V heater to 6V
  221. Phono cathode follower challenge!!
  222. 6au6 for stereo?
  223. determining input/output impedance
  224. "Singing" output transformers
  225. Sustitute 5842 for EC86
  226. Vege-toobz ;)
  227. precision electronics inc. tube guitar amplifier
  228. Bad channel in RCA Victor Console
  229. Did tone bypass on PAS what about caps
  230. Pe06/40n
  231. Anyone own an HH Scott LK-72 Integrated amp?
  232. HELP!! Howling K12G!!
  233. McIntosh MC60 Bias question
  234. Connecting a MF tube buffer directly to AKM DAC
  235. How to evaluate RF tubes for power and fidelity?
  236. Amity Amp Nutshell Audio
  237. 8086 Tubes?
  238. Lil' Devil P-P Amp
  239. 6SN7 vs. 6SL7 in Darling amp
  240. BBC AM8/6 mono tube amp schematic
  241. ST70 works with PAS but not another preamp
  242. Freds in 6X5 psu?
  243. Hi-End 50W Push-Amplifier inspired to AudioResearch
  244. Audioromy fu-29 - push pull!
  245. Help - MS-6V6 Yaqin schematic
  246. High Voltage Direct Drive amplifier for Plasma loudspeaker
  247. A Direct-Coupled Amplifier with Cathode Follower 6V6
  248. Separo- Full Pictorial Disclosure- opinions please
  249. Hammond Integrated Amp Kits 1950s
  250. LW6-180 schematic

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