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  1. sweept tubes for simple Se recommendation?
  2. Building RH84 SE tube amp.
  3. Question - THD Measrement/Spectrum Analyzis
  4. What to do with TMC tube radio gear?
  5. Easy & Safe & Good sounding gainclone tube buffer
  6. Compactron (31AL10) Head-Scratcher
  7. What cable do you use from input socket to volume pot
  8. problem with 12AE6A buffer
  9. Parafeed dc blocking/coupling cap help
  10. Funky Looking 15DQ8s
  11. 12SN7 vs 7N7 bs 6SN7
  12. Correct Pins For EL84 Triode Strap
  13. Dimensions for anode cap sizes?
  14. Mains transformer help needed please
  15. Tone Stack Challenge
  16. Aikido 6SN7 input 5687 output
  17. FRANK"S 6SN7 preamp/linestage
  18. Pentode grid question...
  19. Hybrid fullwave rectifier
  20. 300B stereo amp project help
  21. EdcorEurope
  22. Can AC wires induce hum in output transformers?
  23. Would you use a 4 ohm tap with these speakers?
  24. Changing grid leak bias preamp to cathode bias
  25. 304tl se amp
  26. 5687 Srpp
  27. Dumb Question Brain is numb today!
  28. What a Deal!
  29. Roll Chart for 6DJ8/6922/7308 on Philco 9100 help
  30. MeiXing MC-805AA biasing
  31. whats a good diy tube preamp kit
  32. SimpleSE parts list
  33. Matched tubes or not matched
  34. wood gnomes really do live in france
  35. Pathos Classic one
  36. A Uk supplier of valve amp kits
  37. Detached getter?
  38. 12B4 Line Stage Amp
  39. How do I control volume on Dynaco ST-70?
  40. A few questions from a total novice.
  41. RCA preamp modification
  42. Bogen Challenger CH8 conversion...newb needs help!
  43. 6AU6A - Micropowered tube amp
  44. Yet another DHT filament supply
  45. where to find 5998 ?
  46. Mcintosh MA 2275 Schematic Required
  47. Help on sonic frontier sf line 1 preamp
  48. Voice of Music Reel-Reel schematic needed
  49. Old radio tubes
  50. Alpha Pots
  51. Bleeders values and ratings
  52. Tube audio circuit analysis
  53. Audio Research LS15 circuit and description
  54. OPT Trafo
  55. OPT test data?
  56. looking for the top 6080 amp schematics
  57. vu meter
  58. Walkthrough: Pioneer SM-83 Tube Amp Restoration
  59. First Amp Build....!
  60. Will This work?
  61. Simple SE hookup wiring
  62. building a lit up tube display
  63. Push-Pull 6CL5's
  64. 2A3 power adjustments by channel
  65. Dead 12ax7 gain stage - Help...
  66. Best 300B amp schematics
  67. Stuck on Standby
  68. Newbee wants to learn about tube amps, etc...
  69. Recent Ad on Craig's List
  70. Pitfalls to warmup delay in DC coupled multiple railed amps?
  71. jan 6832 sub miniature tube
  72. Anti-Triode SEPP, how to do best?
  73. Some Help with Feedback Please!
  74. Cary 300SEI, likely capacitor failure
  75. Ballast Tube Current Source
  76. Ray Lumley m100 schematic needed
  77. Feedback question
  78. CMRR from parallel heaters?
  79. bevois valley clone from eico hf-12 iron..
  80. 27/37/56/76 plate dissipation
  81. Bell 2420 Amplifier Schematic Needed...
  82. How It Works Video
  83. Have I got this right?
  84. any simple circuits I can add to a dac?
  85. neg feed back into v/slope stereo 2 pre-amp
  86. Using 12AX7 as input with feedback
  87. My first power supply
  88. Unknown tube similar to px4
  89. Anyone know of some ridiculously powerful triodes for class A useage?
  90. Bias Voltage
  91. Looking for tubes in Germany
  92. Substituting GU50 tubes for KT88
  93. Parts mined from an AKAI 1800L, what to do?
  94. Has anyone built this amp??????
  95. Another TubeLab SimpleSE Build
  96. Output transformers bandwidth/frequency range
  97. Which power supply would you use?
  98. Mullard Articles
  99. SimpleSE - motor run cap specs
  100. Can I reverse leads on an OT?
  101. 9 pin version of a 6SJ7?
  102. 6550 stock ?
  103. Fisher Tube Tuner Restoration Walkthrough
  104. Futterman H-3
  105. simple 6080/6as7 ppp/circlotron project
  106. My unbalanced preamp problem
  107. Gu50
  108. Any Simple CX310 SE schematics around?
  109. Two EI Power Transformers Orientation?
  110. Question on Hybrid Bridge using 5AR4
  111. Recommend a project for a n00b
  112. Help! el34 8pin to 7pin conversion
  113. Converting Yarland FV-34AIII to Triode and Zero NF
  114. 5U4GB PS question
  115. 6X8 Pentode/Triode Musings
  116. DDD mfg co High Voltage power supply?
  117. Mistake on OPT connections : have I damaged something ?
  118. Looking for Jim Morrison Siren Song preamp schematic
  119. cap question....
  120. Ming Da MC368-B90
  121. single tube to drive 300ohm headphones
  122. Negative Feedback?
  123. Possible to convert an oscilloscope into a tube amp?
  124. "Junkbox" 2A5 SE
  125. Power supply testing
  126. Tubeamp power supply - LC question
  127. tube amp coupling cap - audiospace
  128. Radford pentode-triode LTP splitter
  129. Tube bias testers, your opinions, please.
  130. Just saw this and thought I'd pass it along. . .
  131. 6KG6-EL509-EL519 Schematics wanted
  132. Difference between SE output transformer and push-pull output transformers
  133. Sourcing OPTs in Australia
  134. Is there a LOCTAL equiv to a 6V6?
  135. 10m45s LTspice model
  136. What circuit and tube to be used
  137. experimental 6L6G / 6BG6G amp design brainstorm
  138. 29GK6 heater current?
  139. Bench PS: stacking DC supplies
  140. Mr Liung schematics
  141. Want to build tube amp
  142. Back to back transformers.
  143. Using Battery for 300v B+ ?
  144. Anyone recognice this RIAA?
  145. Power cord replacement
  146. Negative LTP CCS supply
  147. c-j pre amp blowing tubes?
  148. first amp build
  149. Tube Mic Preamp - which Edcor transformer?
  150. Scaling the SLCF for other voltage - help
  151. Question about Allied & Hammond Power Transformer Ratings
  152. Education
  153. Tubelab SE with a 6BX7 to drive 845s
  154. Bias Ground
  155. Suggestions for RIAA preamp?
  156. External Test Points
  157. b2spice model request
  158. 12aY 7 preamp out
  159. 3B7 Loctal DHT
  160. Aikido All in One line stage amp PCB
  161. SS power supply.
  162. 6AU6 pentodes
  163. Parafeed with NP electrolytic?
  164. Charlie K - RIP
  165. Need some advise with a hum problem
  166. What resistor should I use?
  167. IN18 nixies
  168. Tubelab SE build and power supply questions.
  169. Quality of S5's K-12G in proposed system
  170. Transformer volume control questions.
  171. Power transformer star ground
  172. Shielding and chassis
  173. Side project - d3a and 6c41c
  174. Cathode-heater leakage
  175. Bell 2122 volume drop off
  176. -500V Maida regulator inquiry
  177. 7591 is glowing RED
  178. Hum problem
  179. Need PS schematic for Musical Machine
  180. Polystyrene capacitor as coupling in output tube stages
  181. Help needed with 10M45S integration .
  182. Ultrasonic Cleaning??????
  183. The daunting world of tubes (where to start)
  184. help 124.3 vac
  185. Bat VK3i buzzing noise
  186. Audioromy FU13 (813) diagram and mods
  187. any complete schematic for 6ak5?
  188. Weird fuzz from Aikido Pre, HELP!
  189. Question about tube amplifier.
  190. 811a rating question
  191. Anode chokes DIY?
  192. EI laminations in Europe
  193. Needed: transformer core materials cobalt nickel
  194. Anybody from Italy - please help
  195. Bogen AP35 amp problem
  196. Question about a VR screen supply
  197. DIY Amp Contest in Japan
  198. Hot 5AR4/GZ34 arcing on powerup surge?
  199. Rh84 Ptx
  200. Buzz. Grounding-related?
  201. 50/60Hz Hum - Your Expert Opinion Please
  202. Static Gm test
  203. High Voltage negative regulators
  204. where do i find old tube car radio schematics?
  205. Burned Up Transformer in HiFi 6p3p Tube Amplifier
  206. capacitors
  207. Wire Types
  208. Weird EH12AY7 Problem
  209. Pot and knob compatability
  210. ECC8100 and ECC2000
  211. DHT experts, i need your help
  212. transformers
  213. Vetruvio class-A
  214. PP to balanced input
  215. KT88 AB2 Experiences
  216. Group buy pulse check for Pete Millett tube crossover PCB
  217. Calculating operating point of a DHT
  218. upgrades, mods to JADIS JA-200, JPS2 and JPS3
  219. McIntosh MC-3500 Schematic Information
  220. Use 2X SE output transformers fo 1x PP
  221. 12B4a spice model.
  222. recommended a tube amp for Celestron Studio Ditton 66's
  223. Help needed with bias circuit
  224. 220 Mega Ohm Resistor - Really
  225. How to bias DH dual triodes?
  226. Any of these tubes good for audio applications?
  227. DIY AN M7 need help !!!
  228. Need schematic for Bell 2420 amp
  229. new SimpleSE build
  230. My Citation II Rebuild
  231. KT88 cathode resistors?
  232. Dynaco ST35 boards
  233. Triode strapping a 6V6 (or any tetrode/pentode, really)
  234. ECC 83 + ELL 80 maybe?
  235. need amp suggestions please.
  236. Phase splitter which tube?
  237. WANTED: 12B4A tubes
  238. re-stacking an output transformer
  239. A directly heated triode or Pentode SE amp on a Budget
  240. Annoying high frequency ringing from my 832 tube amp
  241. 30 Amp Knobs
  242. A question about audio interconnects for the ones here with such knowledge.
  243. Hi-end GM70 amplifier with only 2 stages
  244. Paragon
  245. Simple SE with CCS and fixed bias
  246. Idea(s) for simple HV regulated psu
  247. NOS Philips "miniwatt/dario" tubes
  248. Hybrid Class D with 6n6p tubes
  249. Any ideas how to estimate VA or mA of Power Tranny
  250. 6L6 Grid resistors??

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