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  1. Giaime's last nightmare - aka RIAA faceoff
  2. 5687 dc 5687 tube amp need help
  3. Input cap needed
  4. 6BQ5\EL84 line amp
  5. Capacitor Values Why so high? & What can I do?
  6. Bias pot question
  7. What I have: 4 Tubes. What I need...
  8. let me fix this bias
  9. A small no-fuss pentode/pentode SE amp
  10. Bleeder Resistor Placement
  11. Modifying Heathkit AA 151
  12. Interstage transformer for PI.
  13. mono center channel out to stereo
  14. Audio Research REF 2 MkII
  15. 717a plate volts
  16. valve preamp criticisms?
  17. LOT of tubes. what can I do?
  18. substitution for 7355
  19. KT88 heaters
  20. Software for drawing tube schematics?
  21. New books posted
  22. Compound bias
  23. Tube Oscillation or Microphonic Question
  24. WTB:OT for el 34 35 watt tube amplifier
  25. Questions on 6H30 simple PF?
  26. "Super Davohm" 1w .1% wirewound
  27. Heathkit AA-100
  28. 6159 for SE Power amp
  29. Do SMPS have a home at high end audio?
  30. Kofi Annan in: "300beee!" or "Kofi Gets a Toy"
  31. cathode capacitance on anode follower
  32. looking for a building shematic for ECLL800
  33. Iron learning.
  34. Tube Amp - Crackling Sound on Left Channel
  35. Pspice preamp simulation
  36. Supply voltage for 12v6 12B4 heaters
  37. New project and my first circuit...
  38. Choke coupled phase invertor
  39. long cable line drive
  40. What To Do?
  41. Simple Method To Measure Source Resistance?
  42. is this true????
  43. query on the PSU of a preamp
  44. Meshplate Help needed
  45. 6072 tube preamplifier.
  46. hybrid rectifiers and PIV rating
  47. transformerless amp help plz ...
  48. Help me build a tube MIC preamp plz
  49. chinese 845 amp blowing fuses
  50. Question about PIV rating of diodes...
  51. Triode strapped heptode?
  52. The Fisher 500C/800C Challenge (long..dialup warning)
  53. 5 wire output transformer
  54. Orcad & tube library
  55. Wall Wart Tube Power
  56. How can I lower B+ of power supply?
  57. How do you put a CCS under a diff. pair of DHTs???
  58. Just need to make sure.
  59. restoring a marantz 7c
  60. What is Simplest and Best 6L6 PP circuit? (PK)
  61. Good DIY Transformer Article (in Thai)
  62. Tube Swapping Question
  63. Toroid choke question
  64. Pentode CCS for parafeed SEP??
  65. subminiature tube suggestion
  66. MQ431 or Triode's DynaClone
  67. Conrad Johnson MV 45 schematic help
  68. signal wiring
  69. NEW B Need Help on Output Tx Problem
  70. center tap of heater winding
  71. Dynaco Mk IV question
  72. Does this tube amp has enough cap
  73. Acrosound TO-330 output transformers
  74. PP transformer for SE use
  75. Holiday Time!
  76. another beginers first amp thread!
  77. Western Electric 374A
  78. Musen to Jikken 03/1997
  79. Please help me make a schematic
  80. Tips for Hakko 936-12
  81. AC or DC for 300b Heaters
  82. Two irons for PSU
  83. Which DHT for Line stage?
  84. Pye Mozart 10 amplifier
  85. I need a simple schematic with 6J1P tubes
  86. First tube project. Need advice.
  87. Sound Valves M-40 assistance
  88. Has anyone been keeping up on the 'New Sensor' Controversy?
  89. quad esl output transformer.
  90. penta labs?
  91. transformer links
  92. EL84 auto split
  93. TOPWARD MODEL 605 operation manual & Schematic
  94. PREdator, Diff/CF linestage.
  95. Triode Electronics ??
  96. Full Bridge Amp?
  97. Tube literature on pentodes + transformers
  98. so, who made General Motor's "AUTRONIC EYE" tubes?
  99. 6DJ8 Linestage
  100. Annyone seen this problem?
  101. psu to heater on 4 el34 tubes???
  102. 6C33C-B, Reliability--A theory........
  103. Sun Audio preamps
  104. Anyone Use A Harmon/Kardon XT-2 Xformer For MC ?
  105. Carver Phono
  106. Help With 3 Channel Magnavox
  107. simulation software
  108. trickle charge psu?
  109. tube filter
  110. Holiday S-5 K-12G
  111. Couple of (newbie) tube questions...
  112. valve buffer gainclone
  113. Series wiring for heaters
  114. DIY tube cd player ?
  115. Tubes in mp3 players?
  116. Output Impedance?
  117. Hum Pot Question
  118. Which 6AQ5
  119. White flakes in rectifier tube??
  120. Bogen V20 PA Amp Schematic or ?
  121. 12a?7 in Eico HF-12
  122. Home Made Tubes?? has anyone made one, is it possible??
  123. replace 6N1P with 7308
  124. Plate choke on a line stage?
  125. Looking for datasheet
  126. 811A SET Monoblock physical layout suggestions
  127. Automated bias
  128. OTL or parafeed?
  129. Reversing mains toroids for HT
  130. 5881/6L6WGC and 12AT7WA replacement
  131. Direction for Mounting Transformers
  132. Ecf80
  133. feedback phasing
  134. Cryotubes? Cryogenically Frozen valves
  135. European Triode Festival 2005
  136. PSU capacitors
  137. Question on shared rectifier / signal tube filament windings
  138. Heathkit rebuild or...?
  139. Fisher 500B OPT/Feedback Questions
  140. Transformer selection question
  141. Grounded Grid Help
  142. EF86 penthode
  143. Any audio use for ER21A?
  144. Upgrading a sonic frontiers SFS-80
  145. Hum problem
  146. low frequency oscillation in 12B4 linestage
  147. Balanced volume control question
  148. Need Help for Power Supply for gg Preamp
  149. OTL 6c33c Ciufolli v8.2 low voltage rails
  150. Any way to extend OPT low-frequency response?
  151. RCA Phono Stage Redux
  152. About tube codes
  153. More Joules? Tube or Solid State PSU?
  154. EL34 schematic confusion
  155. 2-stage DHT: high-mu vs. interstage stepup
  156. Understanding this power supply
  157. 6V6G recommended schematic
  158. parallel CRC Filtering for B+
  159. 6v6. 6lg Gain Max Voltage
  160. More buffer questions
  161. Benchtop PS
  162. Chassis labels
  163. LM317 Regulator Problem
  164. Can I afford my SE amp ??
  165. 12B4 versus 6S4 for linestage
  166. Function Generator Probe?
  167. Otl Set?
  168. Tektronix TDS2000 series is a noisy scope
  169. vanderveen's 30W PP amp..
  170. Roberts/Akai M series amp problems
  171. What speaker to use with my tube clone
  172. What’s the best tube amplifier you can build?
  173. Cathode Follower Buffer Input Impedance
  174. EL84 as Preamp and as Crossover
  175. Wondering if Upcoming DIY design will work with Tubes? Cheap DIY Kits?
  176. EL 84 Single Ended Integrated
  177. "2 Stage" PP 7591 Amp
  178. Jolida 1301a with Mission M71 speakers?
  179. EL34 SE in 430V?
  180. EL 84 PPP/PP Class A Triode schematic
  181. Almarro A318A
  182. beckman berkley model 7360
  183. spice model for UL output transformer?
  184. Need help with my new amp
  185. E88CC Mullard fake
  186. Anyone try sharp cutoff pentodes in a p-p output stage?
  187. 845 A2 Monoblock Project
  188. newb needs help on simple el84 amp PS
  189. Newbie's power supply woes
  190. Question about M7 Preamp
  191. Which amp to DIY as a first project?
  192. help for psu
  193. tube amp
  194. Will a 6BH6 work in an Aikido?
  195. Tubes and maximum ratings
  196. FireFly Amp Question
  197. help needed 1st tube diy
  198. Help for newbie building Toccata preamp
  199. Hybrid amp -> tube for VAS stage
  200. I recently inherited a Heathkit HO-10 monitor o-scope...
  201. Aikido tube choice
  202. Biasing pre-amp problem
  203. Help with identifying tube
  204. Off Topic Holiday Cheer
  205. Prototype preamp example
  206. PV10AL Transformer burned, help!
  207. EL34 Pentode in Push-Pull!
  208. Mcintosh MX110 repair
  209. Mains Transformer Question
  210. Loaded Question
  211. A BIG SCRATCH in my speakers? Help me please.
  212. New Production Tung Sol 6550 Tubes - Opinions
  213. Looking to build a tube integrated
  214. Which high power CCS for output stage?
  215. Using a mosfet to drop B+?
  216. drawings vs. schematics
  217. New TEK Scopes
  218. Transfos Anyone?
  219. Ripple guidelines for power supplies
  220. Mains transformer orientation
  221. AMD tube integrated tube amp
  222. Using Choke in LCRC filter in power supply
  223. Need good current sink JFET or MOSFET?
  224. Setting Up a Circuit for Testing
  225. 6H6 question
  226. Kennedy Tube Audio Website Hijacked
  227. Yet another 12B4 line stage, or is the 12B4 better than the Grounded Grid.....
  228. transformer for Philips AG9015
  229. Real McTube Help
  230. Where are the 307A / VT225 amps?
  231. Anyone have a single el84 PPP OPT?
  232. Using an old power transformer as a choke?
  233. Convergent Audio Technology SL-1 Scematics
  234. Poinz 6AQ5 Linestage
  235. microphone preamp
  236. Ticking noise, need help.
  237. Humm in my preamp...
  238. Enclosure suggestion/questions
  239. Calculating Tube Parameters +SPICE
  240. Loudspeaker for TUBE DIYer
  241. Tube ID 18R-AL1?
  242. 6l6gc Tube Drive
  243. Need a little help, TT and PC? Amp Kit?
  244. 12ax7 preamp
  245. 308/ecll800 Lorenz
  246. How did you do your Aikido?
  247. Thoughts on this 807 design
  248. Rectifier compatibilty
  249. Tube amp for biamped speaker
  250. 12ae6, 12fk6, 12fm6 diode specs

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