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  1. Ebl 21 Se Amplifier
  2. OT primary impedance calculation
  3. Akai M5?
  4. Identify the DHT
  5. Fountek Altitude 3500, any opinions?
  6. 31 tube in output
  7. dynaco system- volume remains
  8. Left channel BAD in stereo! HELP please! It's my first tube set
  9. OPT with power transfrormer core
  10. 300b dpa
  11. IV single stage inverting Feedback Amp
  12. TechTubes - The return of Blackburn
  13. simple se how to wire a auxiliary cap
  14. Tradeoffs in analog circuit design, and so on...
  15. Has anyone Received The new Techtubes yet?
  16. 6P3S-E in place of 6V6
  17. EL34, KT88, High Voltage?, VTL..
  18. 100W 6L6 amp sounds harsh at high Volume
  19. Hickok 533 / 600 settings for 6GM8 / ECC86
  20. Need help: amp blowing fuses
  21. Best voltage reference device for a cascode BJT CCS?
  22. Tube power amp noise problem
  23. tube oscillator help.
  24. Finally have some big chokes, how would you use them?
  25. Tube amplifier
  26. Mesa Boogie bass amp quiet
  27. 12AX7 heater filament resistance
  28. Choke input LC chain questions..Q?, minload?
  29. LED bias for 12ax7 oscillator
  30. Yaqin VK-2100 hybrid running 4 ohm speakers
  31. VR shunt regulator or RC filter
  32. Screen Mode Mesh Plate?
  33. EL34 simple push pull class B : why 100W ?
  34. Scored Some Bendix 5992
  35. Tube Substitutions Online ???
  36. Resistor pack for tube amp
  37. Tube Phono Preamp PCB Ebay? are these any good
  38. Testing an EL84 as a 6V6
  39. Low Voltage (~16-20V) Tube
  40. Basic Oscilloscope question
  41. Cathodyne Questions
  42. 6922 for a Noob
  43. Cathodyne Phase splitter simulation problem?
  44. How would you improve this EL84 SE circuit?
  45. Power transformer HT/B+ voltages
  46. Help with cathode follower circuit
  47. RH84 bias change whith different el84 is use
  48. No more power transformers?
  49. K-502 Filament supply (or K-12M)
  50. **LOL** Chinese surround sound amp identification
  51. Tubelab SE driver gain
  52. MOSFET for power drive for low powered 845
  53. Aikido line & phono Guru's advice for a newbie pls
  54. Need Tube kits of above 75W Single Ended Class A amp
  55. First Project: 300B SET Monoblocks
  56. Where do you get those cool layout diagrams?
  57. Simple SE grounding -- metal spacers/standoffs?
  58. My Simple SE via Akihabara
  59. Power-On Time Delay Circuit
  60. GM-70 Build Issues
  61. Blue glass inside tubes
  62. Ruby Tuesdays
  63. Wich valve to start?
  64. Tubes that have round/curved plates. . .
  65. Calculating current capacity?
  66. AKAI 1710W R2R, OPT Question?
  67. Ringed Tube Grills / Guards ?
  68. Recommend me a warm, smooth sounding 6922, 6DJ8, ECC88 or equivalent
  69. Please help identify this tube - Shuguang 6922?
  70. Dedicated 6.3v filament transformer 240v primary
  71. can someone check this thread please
  72. Amp refurbishing question.....
  73. Tube mounting position
  74. 6N6P - recommended operating point
  75. Interstage transformer questions
  76. Help identifying resistor value
  77. New Audio Note M10
  78. K501 vs K12M
  79. what are these (i hope cheap) resistors ?
  80. Potentiometer value for 6SL7 input
  81. PSU Designer II question
  82. Lost Thread-High VOltage Regulated Power Supply
  83. 6B4G schematic - opinions please!!
  84. Plate current Question
  85. rh84 bias question.
  86. On/off LED wiring question
  87. Stabilized wood
  88. Heater to Cathode max voltage specs, including signal swings?
  89. Any 9- pin rectifier tubes with separate cathodes?
  90. Final checkout problems with Tubelab SE
  91. 6G-A4 anyone have a datasheet?
  92. Bias Protection Resistors in DC Coupled Amp
  93. EL84 push pull
  94. pcb printing companies
  95. Help! tube amp burnt?
  96. 43% UL connections
  97. Help with CATHODE resistor value on 6BM8 PP Amp
  98. SE EL34 schematic HELP: from two 6SL7's to One?
  99. no choke and transformers ratings
  100. Value of Resistors of EL34
  101. bass preamp redux
  102. Power Transformer spec questions. Will it work or burn up?
  103. These Hong Kong amps have me bummed
  104. Looking for a cheap dual pentode
  105. Adding panel meters to Simple SE?
  106. Building a 12B4 Line Stage
  107. Speaker sounds blown...but isn't
  108. Static noise in K-16LS
  109. Scratchy clicky noise coming from homemade 6L6 tube amp
  110. Rowe AMI jukebox amp
  111. Does this power supply make any sense to you?
  112. Zener Diode Question
  113. 829B as LTP?
  114. Need a little help with Aikido 6n1p/6n6p
  115. Power switch location..
  116. Mini Millet (starving student) and iPod??
  117. valve preamp for quad 303
  118. Paging Wavebourn - article on Russian caps...
  119. I'm about to drive a stake thru the heart of my Aikido linestage
  120. questions on Mikael Abdellah circuit optimized for EL34 triode operation
  121. Model 16LS Stereo Integrated Tube Amplifier
  122. hum on pre-amp when volume is turned up
  123. 813 RCA amplifier - 25w, class A1, single ended,2 tubes,Rout~1ohm
  124. Interesting circuit, filter question.
  125. Choke Voltage ratings
  126. Hole drills
  127. Major amp circuit redesign- need some expert advice
  128. Daft Hybrid Amp
  129. 6n18-v tube amp
  130. Old big/long plate 12AX7's & 12AT7's
  131. in progress
  132. JTM45 clone
  133. A good tube amplifier power supply
  134. Anyone compared electra-print SE:PP interstages to electra-print PSA-2 autoformers
  135. El34 Se
  136. Question on choke
  137. Simple SE output transformer: James or Edcor?
  138. Looking for beter EL34/6CA7 tubes for C-J MV55 amp
  139. SET tube replacement
  140. Some kind of buffer/preamp for my SS guitar amp fx loop
  141. VALVOLOZZO triode amp with toroids output trafo...help me
  142. Old amp kit making noise and its getting OLD.
  143. Another Tube pre query !
  144. Simple SE aux capacitor
  145. do 6h30 glow at the top only
  146. canadian source for triad choke?
  147. Fork vs. Sleeve Terminal Octal Sockets.
  148. Step down grid choke vs. interstage transformer
  149. Who knows James 6123HS parameters? Or where to ask
  150. Advantage of a FET-BJT CCS vs BJT only
  151. Question - PCB Design with Multisim/Ultiboard
  152. Trouble choke loading tube in regulated supply
  153. PSUD newbie: modeling Tubelab SE
  154. Bassman Schematic Alterations
  155. Fixed Bias adjustment
  156. web resource for tube pricing?
  157. Need help on Kenwood KR 7070
  158. 110v or 220v, how can you tell?
  159. Calling UK builders Simple SE, Pre & Phono advice
  160. Stoked about new volume control for my Simple SE
  161. Tubes Down Under...
  162. To anyone using 808s
  163. Grounded power supply cord on a transformerless amp ?
  164. Documenting SimpleSE FRED Problem
  165. PP KT88 Mono blocks?
  166. Looking for 6.3V 1A ccs heater supply for dht
  167. testing for the ratios on old opt's
  168. Any Transformer Winders?
  169. Output trans plate load question 5687 vs 5965
  170. KT88 triode strapped question
  171. 6528/8080 Triode - NOS Only ???
  172. Opinions gratefully recieved.
  173. Wiring Power Transformer in Parallel
  174. Is there a best location for a volume control?
  175. bass guitar preamp
  176. P2P vs PCB
  177. Help on EL84 / ecc83 SE project -very low volume
  178. 4E27 Triode connection SPICE model
  179. 300B driving 845
  180. Breaking in your tubes?
  181. 6SN7 equivalents in B9A
  182. Figuring out how many watts I need
  183. How do I tell whether a different replacement output transformer will be ok?
  184. OPT linestage question
  185. 6AS7 preamp buffer
  186. Where to put the MV ?
  187. 5u4g input capacitor
  188. Chassis metal advantages/disadvantages?
  189. Experience please: Tung-Sol 6L6GC STR
  190. Transformer winding resistances
  191. Capacitor Voltage Rating Question
  192. Oh my where to begin!? PTP related question.
  193. tube bayonet pin gone.
  194. Attn: Glass_painter - Pioneer SM-83 Transformers Dissected
  195. Please help ID this DIY tube monoblocks
  196. Amp thinks it's a receiver ??
  197. Anyone remember heathkit s99?
  198. Blue Voodoo Solid State Rects to Tube Rects?
  199. Renovation of fifty years old tube amplifier
  200. Big Boss: a simple and basic el84 PP amp in progress
  201. Line Stage for Mikael SE KT88
  202. DIY tube guitar amp oscillating, please help!
  203. Philips EL3536
  204. Tube Tester's
  205. Counterpoint SA-5000 P.S.U part identification needed
  206. 6GU7 in an Aikido?
  207. suggest about 9002/vt202 preamp please
  208. 7591a Alternatives
  209. tube rectifier plug in s-s replacement
  210. Oscillation in tube amps
  211. simple se cathode resistor question
  212. 6GT5 audio amp?
  213. How can a resistor "sound" good?
  214. Pin numbering, viewed from bottom or top?
  215. The Hybrid Class A amplifier
  216. 485V Regulated Power Supply
  217. 0B3 Glows Orange
  218. New Reissue tubes...Good/Bad???
  219. PP amp design , your thoughts please.
  220. Aikido + Phono section preamp
  221. Newcomb el84 amp
  222. Any Australians want to share shipping for valves from ESRC?
  223. 5718 Nuvistor ?
  224. Trimmer pot source?
  225. Pentode Miller Capacitance, and which spec value to use?
  226. Brother can you spare a preamp design?
  227. Reducing tremolo beating
  228. Russian tube equivelants
  229. Another question about russian tubes
  230. Why match tubes?
  231. My XPP OTL Headphoneamp
  232. Joining the Tubelab SE club
  233. Simple heater question
  234. Fender always taking care of tubes....
  235. Need small SET transformer (12B4)
  236. Red Hot 6L6GC
  237. How do these curves look?
  238. Why does lowering screen voltage reduce headroom?
  239. Class A2 Direct MOSFET Coupled SE
  240. Volume Surges Fender "The Twin" - transformer going?
  241. simple SE questions
  242. Best tubes for ~100w 1.9k p-p?
  243. Installing bleeding resistors
  244. Capacitor Comparison Conundrum
  245. Tubelab SE socket raise
  246. RH84 finish!
  247. cathode biasing question
  248. Modding an old tube amp???
  249. More snake oil
  250. simple se success!

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