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  1. 4v for rectifier tube
  2. Need help rebuilding old PA amplifier!
  3. inverted?
  4. Old Tube Radio - Restoration Project
  5. quick - need parts retailers Wash DC area
  6. H&K Tubeman Circuit Questions (added schematics!)
  7. Raising filament winding above cathode with a EZ81 in the circuit OK?
  8. Problem with Beard Audio
  9. 100K pot in a preamp?
  10. Power transformer for 6883B tube uses?
  11. Rca Mi-38188
  12. C- Battery Supply
  13. Seperating Preamp from Amp in Integrated Amps
  14. Please help me in getting rid of the buzz.
  15. Tube Phono stage dilema
  16. Grounding with single tap secondary...
  17. VTL - Manley stereo 75
  18. What about KT100 in SE ?
  19. Tube amplifier kit needed to drive low efficiency speaker
  20. feeling very pleased with myself
  21. Quicksilver Retube
  22. My Totem Arro 4 ohm load on KT-88 based amp
  23. using flash camera (and maybe laptop screen or fluorescent) inverters to power tubes
  24. for fans of the EL38 - the E3375
  25. 811a Opt
  26. Pure class-A or class AB?
  27. 12B4 PP Full Differential Amp Notion
  28. My opinion on Audio Note M10 schematic - Japan version
  29. Help, I need your advice - What Next?
  30. Sloppy, Unreadable, Childlike schematics
  31. Anybody going to tomorrow's NVCF fair in Leamington?
  32. Pete's SE E-Linear
  33. 0A2 or 0D3 ?
  34. Counterpoint SA7 modification.. shottky diodes.. thoughts?
  35. LTP feedback
  36. Need help with my super six...
  37. EL509 as a CF
  38. SE Diode
  39. 6FD7, 6BM8 or other
  40. My OLD Project....... cheap tube audio project!!!
  41. tube noise
  42. Fisher 400 questions
  43. RL12P35 amplifier
  44. 6AS7 ppp
  45. 6j5 dc coupled to 12b4a as 2a3 driver
  46. The sound of different EL34īs.
  47. Output transformer and FB
  48. Triode curves for 6AU5
  49. 26/el-84 amp possible..?
  50. Vaic 52B monos
  51. Hour Meter for a Tube Amp..
  52. volume pot replacement
  53. Ampex 600
  54. Tubing Testing...how are these numbers?
  55. No-R No-C Power Supply
  56. Are my Speakers efficient enough for my Amp?
  57. doesn't sound quite right
  58. 6DJ8 alternates?
  59. Is this the dumbest question?
  60. Fuse between B+ and output transformer?
  61. Telefunken Double Label Error...Ever seen this?
  62. 300B Summer Build Question
  63. 1,25kW tube amplifier/modulator
  64. 12sn7 heater-cathode voltage
  65. Toroidal output transformers with screen drive- why not?
  66. Help With 6v6 Spice Model
  67. Different 5AR4's have different voltages and warm up time.
  68. Edcor OPT in S5 Electronics K-16LS kit?
  69. SRPP Powersupply, replace R with choke ?
  70. First tube amp
  71. Best low-signal direct heated triodes?
  72. 25-position switched attenuator using a pair of 5-position switches?
  73. Help with dead Jadis Defy7 Amp
  74. Heads up! New unbuilt Dynaco ST-70 kit on ebay
  75. Remote control for integrated tube amp
  76. EL34 pp "fixed" bias is wandering
  77. US sources Russian Surplus
  78. Convert RCA tuner/pre to high perf AM only
  79. Metal Can 6CA7s
  80. Bypassing B+ in PP amp
  81. Tube shunt regulator for phono amp
  82. speaker that can be driven by tube amp
  83. Need help with volume control.
  84. Flame triodes!
  85. make OPT
  86. Tube GU50 made in Russia
  87. Expectations of new tube specs
  88. DC on preamp input
  89. We're up and going!
  90. Putting serial number on tubes
  91. Which of these tubes is best?
  92. Stepped attenuator resistor calculation software
  93. Help with PSU for tube DAC output stage
  94. single-tube (6GN8) amplifier?
  95. Dukane schematic needed
  96. Bloody pinouts!
  97. Testing 5651WA on the bench
  98. phase splitter concerns ?
  99. phono pre RIAA 2001
  100. Quick output transformer wiring question
  101. Can I.....
  102. Cathode FB P.P. Strange behaviour.
  103. Historic Valve Assembly Vids Mullard Content
  104. Unknown output impedance
  105. Any matching in 12AT7 sections? (SimpleSE)
  106. Over-voltage on heaters...
  107. Stray capacitance of CCS
  108. CCS Design for DHT Filaments
  109. coupling cap value help for tubelabSE
  110. YAQIN MC-10L to Klipsch B-3 Speakers
  111. Sonic effects of tubes
  112. Gubin Valve Stereo Amplifier Question
  113. 6J5 Shootout - which one's best?
  114. Chinese Tube Amps?
  115. 26 DHT users please comment on what you built & use.
  116. auricap Vs musicap (Another Cap Question)
  117. Help with splitter design for 7591 PP
  118. Tron Seven
  119. blue glow on one channel
  120. Suitable Power Trans for 6gw8/6bm8/el84
  121. Dynaco Pas 3 Hiss from HV regulator
  122. PS Problem: How do I Reduce Voltage?
  123. Got the build itch again. 80w kt88
  124. lm317 CCS question
  125. LM334z
  126. Parafeeding a Tetrode
  127. Differential stage biasing choice
  128. Got an overshoot problem.
  129. Help! What could possibly be wrong?
  130. Noise - 6J5 - 71a -300B amp
  131. crude, simple and powerful PP-amplifier
  132. What's the appeal of type 80 rectifiers?
  133. 6N7 PP amplifier
  134. 300 KW tube audio amplifire-modulator
  135. Weird amp on ebay
  136. which type of rubber cushion under transformers?
  137. 12at7 LTP CCS
  138. Which value of a potentiometer
  139. Strange circuit - heater hum opt feedback?
  140. Aikido question
  141. Copland CTA-402 Phono Section Comments
  142. modified sine wave power inverter
  143. Rebiasing my DSL-100
  144. My EL84 SE
  145. K-16LS kit Assembled and Working
  146. Claus Byrith 30W PP
  147. Aikido pre and class T amplifier ...for a newby
  148. Best replacement for Black Gate WKZ?
  149. DIY Jukebox!!
  150. Partial feedback confusion
  151. Anyone used the 7C7 loktal pentode?
  152. Is vacuumtubes.net still in business?
  153. Rectifier Tubes
  154. music angel kt88 tube amp schmetic needed
  155. Next project suggestions
  156. Unpotted Peerless 16309 OPT from Heath W5m
  157. 6au6 Cf
  158. Direct-Coupling Question
  159. Help on CCS PP differential driver stage for SE 845 amp
  160. I'm Looking for this Similar Schematic !
  161. ECL86 preamp critique please
  162. Low cost 6AV5 design questions (long)
  163. Got my tube spice models, and tubed CD player page back on the air
  164. Vsac 2008?
  165. How hot do Hammond chokes get?
  166. Transformer current question
  167. WTD: Reviewer/Writer For DIY Articles
  168. photomultiplier tube - what is this???
  169. fun idea: cameras and tubes!
  170. Quicksilver
  171. EI-75 End Bells
  172. Svetlana vs. Winged C
  173. Tube Amp Links
  174. McMartin MA-20 mods
  175. Power-tube grid-leak bias
  176. Best/favorite CF NOS noval twin triode?
  177. How can I calculate voltage over cathode resistor?
  178. Grid bias with Class A SE ?
  179. QUADII with DHT
  180. My First Tube Amp
  181. RH84 vs Magnavox SE?
  182. Rectifier and amp heaters on one supply?
  183. OPT impedance vs. speaker
  184. Power Supply help
  185. Problem with Stealth clone (12A6)
  186. phono stage hiss
  187. Lafayette LT-100 and 6AQ8 tubes
  188. Input potentiometer selection
  189. VSAC 2008 Amp Class
  190. Searching for simple 12bh7/E80cc pre schematic
  191. filament AC vs DC
  192. Novice PS Question: Diode Dilemma
  193. Custom Power Transformer Supplier UK ?
  194. lowering AC heater voltage help?
  195. 60 hz hum, what causes those?
  196. Problem with my ST70 build
  197. S-5 16LS tube amp use with 8 ohm speakers
  198. Yaqin 300b
  199. I'm going in.....
  200. noisy rectifier tube
  201. Quad II Output transformer rewinding question
  202. screen-drive (g2 driven) plate curves spacing linear!
  203. Strange feedback method
  204. Trio W-45a Amp-
  205. Hammond Power Transformer Buzz...
  206. Tube DI Help, Please: Substitutions
  207. Harmon Kardon Galaxy BA-150
  208. Velleman K8010 monoblock tube amplifiers
  209. My 6S19P Linestage
  210. EL34 recommendations
  211. Edcor CXPP100-MS-5K- anyone used this (or similar 100W) output transformer?
  212. Bypass 2x0B3 tube cap value ?
  213. EF80 vs EF86
  214. Decware MODEL SE84C-DIY
  215. ST35 voltages WAY too high!
  216. How Do "Heat Fins" Work In a Vacuum?
  217. Acrosound Ultra-Linear OT catalog
  218. Simple Questions: Diodes and Heaters
  219. Recommend an input stage triode please
  220. Copper patinization?
  221. V-m 560a
  222. Anybody dealt with high-endstore.com?
  223. Diodes On Rectifier Question
  224. Stray hum pickup *preamp* cathode R-bias vs. battery bias & 12AU7vs.5687
  225. looking for a website...
  226. Simple 45/2A3 schematic error?
  227. Plate load for push-pull
  228. Hybrid regulator
  229. Hybrid Graetz Bridge
  230. My first amplifier - 6n3c-E
  231. Power supply problem
  232. Grid choke as I/V?
  233. Hammond PR20
  234. 6JN6 screen-drive (g2 driven) plate curves?
  235. Another compactron PP output
  236. 6922 transformer coupled
  237. Beam Deflection Tube Limiter
  238. 6LW6 bias points
  239. Dynaco SCA-35 or Sherwood S5000 iV
  240. EL821 / 6CH6 triode curves?
  241. Ground wire adds hum to Harmony H-400A AC/DC amp
  242. "magic" phase splitter for SimpleP-P
  243. Harmon Kardon tube amp kit testing
  244. Did I hurt this capacitor?
  245. (newb) Why no white (-) leads on power trafo
  246. Ruined transformer?
  247. My Tabor Clone is finished.
  248. first build 6em7 and it works
  249. Cleaning up baked enamel/painted finishes
  250. Highs roll off

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