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  1. Triode strapped heptode?
  2. The Fisher 500C/800C Challenge (long..dialup warning)
  3. 5 wire output transformer
  4. Orcad & tube library
  5. Wall Wart Tube Power
  6. How can I lower B+ of power supply?
  7. How do you put a CCS under a diff. pair of DHTs???
  8. Just need to make sure.
  9. restoring a marantz 7c
  10. Who sells a tube bass guitar amp kit??
  11. What is Simplest and Best 6L6 PP circuit? (PK)
  12. Good DIY Transformer Article (in Thai)
  13. Tube Swapping Question
  14. Toroid choke question
  15. Pentode CCS for parafeed SEP??
  16. subminiature tube suggestion
  17. MQ431 or Triode's DynaClone
  18. Conrad Johnson MV 45 schematic help
  19. signal wiring
  20. NEW B Need Help on Output Tx Problem
  21. center tap of heater winding
  22. Dynaco Mk IV question
  23. Does this tube amp has enough cap
  24. Acrosound TO-330 output transformers
  25. PP transformer for SE use
  26. Holiday Time!
  27. another beginers first amp thread!
  28. Western Electric 374A
  29. Musen to Jikken 03/1997
  30. Please help me make a schematic
  31. Tips for Hakko 936-12
  32. AC or DC for 300b Heaters
  33. Two irons for PSU
  34. Which DHT for Line stage?
  35. Pye Mozart 10 amplifier
  36. I need a simple schematic with 6J1P tubes
  37. First tube project. Need advice.
  38. Sound Valves M-40 assistance
  39. Has anyone been keeping up on the 'New Sensor' Controversy?
  40. quad esl output transformer.
  41. penta labs?
  42. New Build (Guitar Amp)
  43. transformer links
  44. EL84 auto split
  45. TOPWARD MODEL 605 operation manual & Schematic
  46. PREdator, Diff/CF linestage.
  47. Triode Electronics ??
  48. Full Bridge Amp?
  49. Tube literature on pentodes + transformers
  50. so, who made General Motor's "AUTRONIC EYE" tubes?
  51. 6DJ8 Linestage
  52. Annyone seen this problem?
  53. psu to heater on 4 el34 tubes???
  54. 6C33C-B, Reliability--A theory........
  55. Sun Audio preamps
  56. Anyone Use A Harmon/Kardon XT-2 Xformer For MC ?
  57. Carver Phono
  58. Help With 3 Channel Magnavox
  59. simulation software
  60. trickle charge psu?
  61. tube filter
  62. Holiday S-5 K-12G
  63. Couple of (newbie) tube questions...
  64. valve buffer gainclone
  65. Series wiring for heaters
  66. DIY tube cd player ?
  67. Tubes in mp3 players?
  68. Output Impedance?
  69. Hum Pot Question
  70. Which 6AQ5
  71. White flakes in rectifier tube??
  72. Bogen V20 PA Amp Schematic or ?
  73. 12a?7 in Eico HF-12
  74. Home Made Tubes?? has anyone made one, is it possible??
  75. replace 6N1P with 7308
  76. Plate choke on a line stage?
  77. Looking for datasheet
  78. 811A SET Monoblock physical layout suggestions
  79. Automated bias
  80. OTL or parafeed?
  81. tubes: Jcm 900 Slx 50watt
  82. Reversing mains toroids for HT
  83. 5881/6L6WGC and 12AT7WA replacement
  84. Direction for Mounting Transformers
  85. Ecf80
  86. feedback phasing
  87. Cryotubes? Cryogenically Frozen valves
  88. European Triode Festival 2005
  89. PSU capacitors
  90. Question on shared rectifier / signal tube filament windings
  91. Heathkit rebuild or...?
  92. Fisher 500B OPT/Feedback Questions
  93. Transformer selection question
  94. Grounded Grid Help
  95. EF86 penthode
  96. Any audio use for ER21A?
  97. Upgrading a sonic frontiers SFS-80
  98. Hum problem
  99. low frequency oscillation in 12B4 linestage
  100. Balanced volume control question
  101. Need Help for Power Supply for gg Preamp
  102. OTL 6c33c Ciufolli v8.2 low voltage rails
  103. Any way to extend OPT low-frequency response?
  104. RCA Phono Stage Redux
  105. About tube codes
  106. More Joules? Tube or Solid State PSU?
  107. EL34 schematic confusion
  108. 2-stage DHT: high-mu vs. interstage stepup
  109. Understanding this power supply
  110. 6V6G recommended schematic
  111. parallel CRC Filtering for B+
  112. 6v6. 6lg Gain Max Voltage
  113. More buffer questions
  114. Benchtop PS
  115. Chassis labels
  116. LM317 Regulator Problem
  117. Can I afford my SE amp ??
  118. 12B4 versus 6S4 for linestage
  119. Function Generator Probe?
  120. Otl Set?
  121. Tektronix TDS2000 series is a noisy scope
  122. vanderveen's 30W PP amp..
  123. Roberts/Akai M series amp problems
  124. What speaker to use with my tube clone
  125. What’s the best tube amplifier you can build?
  126. Cathode Follower Buffer Input Impedance
  127. EL84 as Preamp and as Crossover
  128. Wondering if Upcoming DIY design will work with Tubes? Cheap DIY Kits?
  129. EL 84 Single Ended Integrated
  130. "2 Stage" PP 7591 Amp
  131. Jolida 1301a with Mission M71 speakers?
  132. EL34 SE in 430V?
  133. EL 84 PPP/PP Class A Triode schematic
  134. Almarro A318A
  135. beckman berkley model 7360
  136. spice model for UL output transformer?
  137. Need help with my new amp
  138. Motor caps
  139. E88CC Mullard fake
  140. Anyone try sharp cutoff pentodes in a p-p output stage?
  141. 845 A2 Monoblock Project
  142. newb needs help on simple el84 amp PS
  143. Newbie's power supply woes
  144. Question about M7 Preamp
  145. Which amp to DIY as a first project?
  146. help for psu
  147. tube amp
  148. Will a 6BH6 work in an Aikido?
  149. Tubes and maximum ratings
  150. FireFly Amp Question
  151. help needed 1st tube diy
  152. Help for newbie building Toccata preamp
  153. Diy Orange guitar amp
  154. Hybrid amp -> tube for VAS stage
  155. I recently inherited a Heathkit HO-10 monitor o-scope...
  156. Laney PA amp help!
  157. Aikido tube choice
  158. Biasing pre-amp problem
  159. Help with identifying tube
  160. Off Topic Holiday Cheer
  161. Prototype preamp example
  162. PV10AL Transformer burned, help!
  163. EL34 Pentode in Push-Pull!
  164. Mcintosh MX110 repair
  165. Mains Transformer Question
  166. Loaded Question
  167. A BIG SCRATCH in my speakers? Help me please.
  168. New Production Tung Sol 6550 Tubes - Opinions
  169. Looking to build a tube integrated
  170. Which high power CCS for output stage?
  171. Using a mosfet to drop B+?
  172. drawings vs. schematics
  173. New TEK Scopes
  174. Transfos Anyone?
  175. Ripple guidelines for power supplies
  176. Mains transformer orientation
  177. New Nightmare (Guitar Amp)
  178. AMD tube integrated tube amp
  179. Using Choke in LCRC filter in power supply
  180. Need good current sink JFET or MOSFET?
  181. Setting Up a Circuit for Testing
  182. 6H6 question
  183. Kennedy Tube Audio Website Hijacked
  184. Yet another 12B4 line stage, or is the 12B4 better than the Grounded Grid.....
  185. transformer for Philips AG9015
  186. Real McTube Help
  187. Where are the 307A / VT225 amps?
  188. Anyone have a single el84 PPP OPT?
  189. Finished First Guitar Amp
  190. Using an old power transformer as a choke?
  191. Convergent Audio Technology SL-1 Scematics
  192. Poinz 6AQ5 Linestage
  193. microphone preamp
  194. Ticking noise, need help.
  195. Humm in my preamp...
  196. Enclosure suggestion/questions
  197. Calculating Tube Parameters +SPICE
  198. Loudspeaker for TUBE DIYer
  199. Tube ID 18R-AL1?
  200. 6l6gc Tube Drive
  201. Need a little help, TT and PC? Amp Kit?
  202. 12ax7 preamp
  203. 308/ecll800 Lorenz
  204. How did you do your Aikido?
  205. Thoughts on this 807 design
  206. Rectifier compatibilty
  207. Tube amp for biamped speaker
  208. 12ae6, 12fk6, 12fm6 diode specs
  209. Any software out there for taking the headache out of composite loadlines?
  210. Driving a single 6L6GC with 12AX7
  211. quick 50c5 to play around with
  212. A question about distortion in SE vs. PP designs:
  213. Need help on first tube amp rebuild -trans problems
  214. HAMMOND 125ESE Transformer WIRING
  215. preamp ps problem
  216. What does everybody really NEED???
  217. Marantz 7C still good today?
  218. Magnavox Chassis #196-55 Resistor Question
  219. 6BL7
  220. altec/peerless mystery amp
  221. 6gk8 triode pentode tube data
  222. Low Current Source
  223. Parallel Single-Ended Questions
  224. Tube power ratings
  225. 6DJ8 or 12xx7 for hybrid amp (Monarchy)
  226. What did I do wrong with LEGACY????
  227. seeking: tube for a SEP parallel feed like an EL84, but with a lower Ra
  228. Tube Tracer
  229. a question of tube behaviour
  230. Which tube? ECC82, 6SN7 or 6SL7
  231. oscillator
  232. The Covi Mark II Circlotron Amp
  233. HT transformers and polarity
  234. Hammond 156C - good Plate choke load??
  235. Music Man sixtyfive reverb head needs help!
  236. DIY pre-amp kit vote
  237. 6550 tubes
  238. Is the 6N6P a direct substitute for the 5687?
  239. SE amp using 1619 instead of 45 triode
  240. Akai M-7 Amp Schematics?
  241. asl 845 monos mods
  242. 3 stages... Two Power Supplies
  243. RCA 7094 tetrodes...
  244. KT88 push pull
  245. Tube amp fan?
  246. Ping gerd.....
  247. Need help finding Sovtel EL84M tubes
  248. Min. current draw for choke input?
  249. Passive RIAA with tubes
  250. Oscillation Mystery

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