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  1. Tubelab Simple SE with two Transformers - Centertaps?
  2. Hybrid Amp
  3. transformer information need help
  4. Replacing a cathode resistor with a CCS
  5. DC offset and relays
  6. Sourcing JJ 300B tubes
  7. EICO HF-12 Iron - Use in Guitar Amp?
  8. Decware Vs Rogue Audio
  9. Global Feedback on Mikael's KT88SE
  10. Generating big voltage swings without 'iron'
  11. 6AS7G Grid Voltage ??
  12. Next project 6EM7
  13. Anyone built a tube-based (6BE6 or 6HS8) volume control?
  14. What to replace these caps with?
  15. 5691 plate value ratings
  16. Bussiness trip to Singapore
  17. Paco mike tube amp
  18. Emergency help with Wes' amp
  19. 2A3 without cathode bypass cap???
  20. Best way to burn-in my new SE xfrmers on the bench?
  21. tubelabse pt wiring
  22. Need help with my ST70
  23. 6sn7 direct coupled and transformer coupled
  24. Hickok 605A Test 6DJ8
  25. Grounded Grid Preamp
  26. Beginner WLTM fixer of 300B hum...
  27. Bell 2420 tube amplifier. Bias question. 6v6 push pull
  28. How to figure gain on split-load with positive feedback?
  29. Mikaels KT88SE & VTV Octal Linestage
  30. idiot needs help making sense of funny squigles - Filmosound
  31. Custom Transformer?
  32. How are this schematic ?
  33. Need help with a Tube preamp Kit (6Z4, 6N3)
  34. data sheets for 7239 and 8068
  35. John Swenson's New BDT preamp
  36. no coupling caps
  37. 6SN7GT brand
  38. tube voltage regulator error amp
  39. driving 845's
  40. Just ordered a Korg EMX-1
  41. Maida for Screen Supply
  42. cracked el34 -> replacement squeals
  43. SimpleSE goes Push Pull
  44. Possibly defective Mullard 12AT7?
  45. Basic measurement question re: shorts
  46. EL84 DC 10Y Project
  47. TubeCad Journal FET CCS
  48. russian tube
  49. Source for #81 light bulb for Hickok Fuse
  50. pchw 's tube hybrid amp accurian info
  51. 3c24 se amp
  52. schematic of firstsoundaudio pre amp
  53. 300b-98c mesh bias
  54. 6SN7 coin base tubes
  55. tube rectifiers and electrolytic reforming w/ variac
  56. I'm running my leak stereo 20 single ended. WHAT???
  57. Varnish on old transformer
  58. SE parallel output questions
  59. Darius Loftin White explained
  60. best capacitor
  61. New Sensor's "Mullard" EL34 reissue?
  62. Best Way to Control Plate Voltage?
  63. Any Mods for a Noisy Leak Point one Stereo?
  64. tubes for 87db spendor
  65. 4v for rectifier tube
  66. Need help rebuilding old PA amplifier!
  67. inverted?
  68. Old Tube Radio - Restoration Project
  69. quick - need parts retailers Wash DC area
  70. H&K Tubeman Circuit Questions (added schematics!)
  71. Marshalls: Why did 600V B+ become 470V?
  72. Raising filament winding above cathode with a EZ81 in the circuit OK?
  73. Problem with Beard Audio
  74. 100K pot in a preamp?
  75. Motor Run Capacitor
  76. Power transformer for 6883B tube uses?
  77. EAGLE PCB help with socket on it
  78. Rca Mi-38188
  79. C- Battery Supply
  80. Seperating Preamp from Amp in Integrated Amps
  81. Wind my own output transformer for 100w bass amp
  82. Please help me in getting rid of the buzz.
  83. Tube Phono stage dilema
  84. Grounding with single tap secondary...
  85. VTL - Manley stereo 75
  86. What about KT100 in SE ?
  87. Tube amplifier kit needed to drive low efficiency speaker
  88. feeling very pleased with myself
  89. Quicksilver Retube
  90. My Totem Arro 4 ohm load on KT-88 based amp
  91. using flash camera (and maybe laptop screen or fluorescent) inverters to power tubes
  92. for fans of the EL38 - the E3375
  93. 811a Opt
  94. Guitar amp for Wes is running!
  95. Pure class-A or class AB?
  96. 12B4 PP Full Differential Amp Notion
  97. My opinion on Audio Note M10 schematic - Japan version
  98. B&K 650 tubecharts
  99. Help, I need your advice - What Next?
  100. Sloppy, Unreadable, Childlike schematics
  101. Anybody going to tomorrow's NVCF fair in Leamington?
  102. Randall RGT 100 Amp Problem
  103. Pete's SE E-Linear
  104. 0A2 or 0D3 ?
  105. Counterpoint SA7 modification.. shottky diodes.. thoughts?
  106. LTP feedback
  107. Need help with my super six...
  108. EL509 as a CF
  109. SE Diode
  110. 6FD7, 6BM8 or other
  111. My OLD Project....... cheap tube audio project!!!
  112. tube noise
  113. Fisher 400 questions
  114. RL12P35 amplifier
  115. 6AS7 ppp
  116. 6j5 dc coupled to 12b4a as 2a3 driver
  117. '81 Twin problems
  118. The sound of different EL34īs.
  119. Output transformer and FB
  120. Triode curves for 6AU5
  121. 26/el-84 amp possible..?
  122. Vaic 52B monos
  123. Hour Meter for a Tube Amp..
  124. volume pot replacement
  125. Any Ampeg SVT-II (non-pro) schematics???
  126. Ampex 600
  127. Tubing Testing...how are these numbers?
  128. No-R No-C Power Supply
  129. Are my Speakers efficient enough for my Amp?
  130. doesn't sound quite right
  131. 6DJ8 alternates?
  132. Is this the dumbest question?
  133. Fuse between B+ and output transformer?
  134. Telefunken Double Label Error...Ever seen this?
  135. 300B Summer Build Question
  136. 1,25kW tube amplifier/modulator
  137. 12sn7 heater-cathode voltage
  138. Toroidal output transformers with screen drive- why not?
  139. Help With 6v6 Spice Model
  140. Different 5AR4's have different voltages and warm up time.
  141. Edcor OPT in S5 Electronics K-16LS kit?
  142. SRPP Powersupply, replace R with choke ?
  143. First tube amp
  144. Best low-signal direct heated triodes?
  145. 25-position switched attenuator using a pair of 5-position switches?
  146. Help with dead Jadis Defy7 Amp
  147. Bring test points to chassis - Tubelab
  148. Heads up! New unbuilt Dynaco ST-70 kit on ebay
  149. Remote control for integrated tube amp
  150. EL34 pp "fixed" bias is wandering
  151. US sources Russian Surplus
  152. 6550 SE class project (continued)
  153. Convert RCA tuner/pre to high perf AM only
  154. Metal Can 6CA7s
  155. Bypassing B+ in PP amp
  156. Tube shunt regulator for phono amp
  157. Triplett tube tester help
  158. Motor run Caps Question
  159. speaker that can be driven by tube amp
  160. Which perf board?
  161. Looking for schematic/info for a Knight KN 3050 PA Amp
  162. Need help with volume control.
  163. Flame triodes!
  164. make OPT
  165. Tube GU50 made in Russia
  166. Expectations of new tube specs
  167. DC on preamp input
  168. We're up and going!
  169. Putting serial number on tubes
  170. Which of these tubes is best?
  171. Stepped attenuator resistor calculation software
  172. Help with PSU for tube DAC output stage
  173. single-tube (6GN8) amplifier?
  174. Dukane schematic needed
  175. Bloody pinouts!
  176. Testing 5651WA on the bench
  177. phase splitter concerns ?
  178. phono pre RIAA 2001
  179. Quick output transformer wiring question
  180. Can I.....
  181. Cathode FB P.P. Strange behaviour.
  182. Historic Valve Assembly Vids Mullard Content
  183. Unknown output impedance
  184. Any matching in 12AT7 sections? (SimpleSE)
  185. Over-voltage on heaters...
  186. Stray capacitance of CCS
  187. CCS Design for DHT Filaments
  188. coupling cap value help for tubelabSE
  189. YAQIN MC-10L to Klipsch B-3 Speakers
  190. Sonic effects of tubes
  191. Gubin Valve Stereo Amplifier Question
  192. 6J5 Shootout - which one's best?
  193. Chinese Tube Amps?
  194. 26 DHT users please comment on what you built & use.
  195. Guitar amp project report
  196. auricap Vs musicap (Another Cap Question)
  197. Help with splitter design for 7591 PP
  198. Question regarding PS ripple in guitar amps - TubeLab?
  199. Tron Seven
  200. blue glow on one channel
  201. Suitable Power Trans for 6gw8/6bm8/el84
  202. Dynaco Pas 3 Hiss from HV regulator
  203. PS Problem: How do I Reduce Voltage?
  204. Got the build itch again. 80w kt88
  205. lm317 CCS question
  206. LM334z
  207. Parafeeding a Tetrode
  208. Differential stage biasing choice
  209. Got an overshoot problem.
  210. Help! What could possibly be wrong?
  211. Noise - 6J5 - 71a -300B amp
  212. crude, simple and powerful PP-amplifier
  213. What's the appeal of type 80 rectifiers?
  214. Guitar amp layout second thoughts
  215. 6N7 PP amplifier
  216. 300 KW tube audio amplifire-modulator
  217. Weird amp on ebay
  218. which type of rubber cushion under transformers?
  219. 12at7 LTP CCS
  220. Which value of a potentiometer
  221. Strange circuit - heater hum opt feedback?
  222. Aikido question
  223. Tubelab SE diode substitute
  224. Copland CTA-402 Phono Section Comments
  225. modified sine wave power inverter
  226. Rebiasing my DSL-100
  227. My EL84 SE
  228. K-16LS kit Assembled and Working
  229. Claus Byrith 30W PP
  230. Aikido pre and class T amplifier ...for a newby
  231. Best replacement for Black Gate WKZ?
  232. DIY Jukebox!!
  233. Partial feedback confusion
  234. Anyone used the 7C7 loktal pentode?
  235. Is vacuumtubes.net still in business?
  236. Rectifier Tubes
  237. music angel kt88 tube amp schmetic needed
  238. Next project suggestions
  239. Unpotted Peerless 16309 OPT from Heath W5m
  240. 6au6 Cf
  241. Direct-Coupling Question
  242. Help on CCS PP differential driver stage for SE 845 amp
  243. I'm Looking for this Similar Schematic !
  244. ECL86 preamp critique please
  245. Low cost 6AV5 design questions (long)
  246. Got my tube spice models, and tubed CD player page back on the air
  247. Vsac 2008?
  248. How hot do Hammond chokes get?
  249. Transformer current question
  250. TubelabSE - best MOSFET choice?

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