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  1. Freaky Whistle in Guitar Amp
  2. Giaime's last nightmare - aka RIAA faceoff
  3. 5687 dc 5687 tube amp need help
  4. Input cap needed
  5. 6BQ5\EL84 line amp
  6. Capacitor Values Why so high? & What can I do?
  7. Bias pot question
  8. What I have: 4 Tubes. What I need...
  9. let me fix this bias
  10. A small no-fuss pentode/pentode SE amp
  11. Bleeder Resistor Placement
  12. Modifying Heathkit AA 151
  13. Interstage transformer for PI.
  14. Motorrun caps ... GND side?
  15. mono center channel out to stereo
  16. Audio Research REF 2 MkII
  17. 717a plate volts
  18. valve preamp criticisms?
  19. LOT of tubes. what can I do?
  20. substitution for 7355
  21. KT88 heaters
  22. Software for drawing tube schematics?
  23. Guitar Amp HUUUM with an MP3! Reverb Problem
  24. New books posted
  25. Compound bias
  26. Tube Oscillation or Microphonic Question
  27. WTB:OT for el 34 35 watt tube amplifier
  28. Questions on 6H30 simple PF?
  29. "Super Davohm" 1w .1% wirewound
  30. Heathkit AA-100
  31. 6159 for SE Power amp
  32. Do SMPS have a home at high end audio?
  33. Kofi Annan in: "300beee!" or "Kofi Gets a Toy"
  34. cathode capacitance on anode follower
  35. looking for a building shematic for ECLL800
  36. Iron learning.
  37. Tube Amp - Crackling Sound on Left Channel
  38. Pspice preamp simulation
  39. Supply voltage for 12v6 12B4 heaters
  40. Studio Tube Preamp
  41. New project and my first circuit...
  42. Champ clone fried my soundcard
  43. Choke coupled phase invertor
  44. long cable line drive
  45. What To Do?
  46. Simple Method To Measure Source Resistance?
  47. is this true????
  48. query on the PSU of a preamp
  49. Meshplate Help needed
  50. 6072 tube preamplifier.
  51. hybrid rectifiers and PIV rating
  52. transformerless amp help plz ...
  53. Help me build a tube MIC preamp plz
  54. chinese 845 amp blowing fuses
  55. Question about PIV rating of diodes...
  56. Triode strapped heptode?
  57. The Fisher 500C/800C Challenge (long..dialup warning)
  58. 5 wire output transformer
  59. Orcad & tube library
  60. Wall Wart Tube Power
  61. How can I lower B+ of power supply?
  62. How do you put a CCS under a diff. pair of DHTs???
  63. Just need to make sure.
  64. restoring a marantz 7c
  65. Who sells a tube bass guitar amp kit??
  66. What is Simplest and Best 6L6 PP circuit? (PK)
  67. Good DIY Transformer Article (in Thai)
  68. Tube Swapping Question
  69. Toroid choke question
  70. Pentode CCS for parafeed SEP??
  71. subminiature tube suggestion
  72. MQ431 or Triode's DynaClone
  73. Conrad Johnson MV 45 schematic help
  74. signal wiring
  75. NEW B Need Help on Output Tx Problem
  76. center tap of heater winding
  77. Dynaco Mk IV question
  78. Does this tube amp has enough cap
  79. Acrosound TO-330 output transformers
  80. PP transformer for SE use
  81. Holiday Time!
  82. another beginers first amp thread!
  83. Western Electric 374A
  84. Musen to Jikken 03/1997
  85. Please help me make a schematic
  86. Tips for Hakko 936-12
  87. AC or DC for 300b Heaters
  88. Two irons for PSU
  89. Which DHT for Line stage?
  90. Pye Mozart 10 amplifier
  91. I need a simple schematic with 6J1P tubes
  92. First tube project. Need advice.
  93. Sound Valves M-40 assistance
  94. Has anyone been keeping up on the 'New Sensor' Controversy?
  95. quad esl output transformer.
  96. penta labs?
  97. New Build (Guitar Amp)
  98. transformer links
  99. EL84 auto split
  100. TOPWARD MODEL 605 operation manual & Schematic
  101. PREdator, Diff/CF linestage.
  102. Triode Electronics ??
  103. Full Bridge Amp?
  104. Tube literature on pentodes + transformers
  105. so, who made General Motor's "AUTRONIC EYE" tubes?
  106. 6DJ8 Linestage
  107. Annyone seen this problem?
  108. psu to heater on 4 el34 tubes???
  109. 6C33C-B, Reliability--A theory........
  110. Sun Audio preamps
  111. Anyone Use A Harmon/Kardon XT-2 Xformer For MC ?
  112. Carver Phono
  113. Help With 3 Channel Magnavox
  114. simulation software
  115. trickle charge psu?
  116. tube filter
  117. Holiday S-5 K-12G
  118. Couple of (newbie) tube questions...
  119. valve buffer gainclone
  120. Series wiring for heaters
  121. DIY tube cd player ?
  122. Tubes in mp3 players?
  123. Output Impedance?
  124. Hum Pot Question
  125. Which 6AQ5
  126. White flakes in rectifier tube??
  127. Bogen V20 PA Amp Schematic or ?
  128. 12a?7 in Eico HF-12
  129. Home Made Tubes?? has anyone made one, is it possible??
  130. replace 6N1P with 7308
  131. Plate choke on a line stage?
  132. Looking for datasheet
  133. 811A SET Monoblock physical layout suggestions
  134. Automated bias
  135. OTL or parafeed?
  136. tubes: Jcm 900 Slx 50watt
  137. Reversing mains toroids for HT
  138. 5881/6L6WGC and 12AT7WA replacement
  139. Direction for Mounting Transformers
  140. Ecf80
  141. feedback phasing
  142. Cryotubes? Cryogenically Frozen valves
  143. European Triode Festival 2005
  144. PSU capacitors
  145. Question on shared rectifier / signal tube filament windings
  146. Heathkit rebuild or...?
  147. Fisher 500B OPT/Feedback Questions
  148. Transformer selection question
  149. Grounded Grid Help
  150. EF86 penthode
  151. Any audio use for ER21A?
  152. Upgrading a sonic frontiers SFS-80
  153. Hum problem
  154. low frequency oscillation in 12B4 linestage
  155. Balanced volume control question
  156. Need Help for Power Supply for gg Preamp
  157. OTL 6c33c Ciufolli v8.2 low voltage rails
  158. Any way to extend OPT low-frequency response?
  159. RCA Phono Stage Redux
  160. About tube codes
  161. More Joules? Tube or Solid State PSU?
  162. EL34 schematic confusion
  163. 2-stage DHT: high-mu vs. interstage stepup
  164. Understanding this power supply
  165. 6V6G recommended schematic
  166. parallel CRC Filtering for B+
  167. 6v6. 6lg Gain Max Voltage
  168. More buffer questions
  169. Benchtop PS
  170. Chassis labels
  171. LM317 Regulator Problem
  172. Can I afford my SE amp ??
  173. 12B4 versus 6S4 for linestage
  174. Function Generator Probe?
  175. Otl Set?
  176. Tektronix TDS2000 series is a noisy scope
  177. vanderveen's 30W PP amp..
  178. Roberts/Akai M series amp problems
  179. What speaker to use with my tube clone
  180. What’s the best tube amplifier you can build?
  181. Cathode Follower Buffer Input Impedance
  182. EL84 as Preamp and as Crossover
  183. Wondering if Upcoming DIY design will work with Tubes? Cheap DIY Kits?
  184. EL 84 Single Ended Integrated
  185. "2 Stage" PP 7591 Amp
  186. Jolida 1301a with Mission M71 speakers?
  187. EL34 SE in 430V?
  188. EL 84 PPP/PP Class A Triode schematic
  189. Almarro A318A
  190. beckman berkley model 7360
  191. spice model for UL output transformer?
  192. Need help with my new amp
  193. Motor caps
  194. E88CC Mullard fake
  195. Anyone try sharp cutoff pentodes in a p-p output stage?
  196. 845 A2 Monoblock Project
  197. newb needs help on simple el84 amp PS
  198. Newbie's power supply woes
  199. Question about M7 Preamp
  200. Which amp to DIY as a first project?
  201. help for psu
  202. tube amp
  203. Will a 6BH6 work in an Aikido?
  204. Tubes and maximum ratings
  205. FireFly Amp Question
  206. help needed 1st tube diy
  207. Help for newbie building Toccata preamp
  208. Diy Orange guitar amp
  209. Hybrid amp -> tube for VAS stage
  210. I recently inherited a Heathkit HO-10 monitor o-scope...
  211. Laney PA amp help!
  212. Aikido tube choice
  213. Biasing pre-amp problem
  214. Help with identifying tube
  215. Off Topic Holiday Cheer
  216. Prototype preamp example
  217. PV10AL Transformer burned, help!
  218. EL34 Pentode in Push-Pull!
  219. Mcintosh MX110 repair
  220. Mains Transformer Question
  221. Loaded Question
  222. A BIG SCRATCH in my speakers? Help me please.
  223. New Production Tung Sol 6550 Tubes - Opinions
  224. Looking to build a tube integrated
  225. Which high power CCS for output stage?
  226. Using a mosfet to drop B+?
  227. drawings vs. schematics
  228. New TEK Scopes
  229. Transfos Anyone?
  230. Ripple guidelines for power supplies
  231. Mains transformer orientation
  232. New Nightmare (Guitar Amp)
  233. AMD tube integrated tube amp
  234. Using Choke in LCRC filter in power supply
  235. Need good current sink JFET or MOSFET?
  236. Setting Up a Circuit for Testing
  237. 6H6 question
  238. Kennedy Tube Audio Website Hijacked
  239. Yet another 12B4 line stage, or is the 12B4 better than the Grounded Grid.....
  240. transformer for Philips AG9015
  241. Real McTube Help
  242. Where are the 307A / VT225 amps?
  243. Anyone have a single el84 PPP OPT?
  244. Finished First Guitar Amp
  245. Using an old power transformer as a choke?
  246. Convergent Audio Technology SL-1 Scematics
  247. Poinz 6AQ5 Linestage
  248. microphone preamp
  249. Ticking noise, need help.
  250. Humm in my preamp...

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