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  1. Acrosound TO-330 output transformers
  2. PP transformer for SE use
  3. Holiday Time!
  4. another beginers first amp thread!
  5. Western Electric 374A
  6. Musen to Jikken 03/1997
  7. Please help me make a schematic
  8. Tips for Hakko 936-12
  9. AC or DC for 300b Heaters
  10. Two irons for PSU
  11. Which DHT for Line stage?
  12. Pye Mozart 10 amplifier
  13. I need a simple schematic with 6J1P tubes
  14. First tube project. Need advice.
  15. Sound Valves M-40 assistance
  16. Has anyone been keeping up on the 'New Sensor' Controversy?
  17. quad esl output transformer.
  18. penta labs?
  19. New Build (Guitar Amp)
  20. transformer links
  21. EL84 auto split
  22. TOPWARD MODEL 605 operation manual & Schematic
  23. PREdator, Diff/CF linestage.
  24. Triode Electronics ??
  25. Full Bridge Amp?
  26. Tube literature on pentodes + transformers
  27. so, who made General Motor's "AUTRONIC EYE" tubes?
  28. 6DJ8 Linestage
  29. Annyone seen this problem?
  30. psu to heater on 4 el34 tubes???
  31. 6C33C-B, Reliability--A theory........
  32. Sun Audio preamps
  33. Anyone Use A Harmon/Kardon XT-2 Xformer For MC ?
  34. Carver Phono
  35. Help With 3 Channel Magnavox
  36. simulation software
  37. trickle charge psu?
  38. tube filter
  39. Holiday S-5 K-12G
  40. Couple of (newbie) tube questions...
  41. valve buffer gainclone
  42. Series wiring for heaters
  43. DIY tube cd player ?
  44. Tubes in mp3 players?
  45. Output Impedance?
  46. Hum Pot Question
  47. Which 6AQ5
  48. White flakes in rectifier tube??
  49. Bogen V20 PA Amp Schematic or ?
  50. 12a?7 in Eico HF-12
  51. Home Made Tubes?? has anyone made one, is it possible??
  52. replace 6N1P with 7308
  53. Plate choke on a line stage?
  54. Looking for datasheet
  55. 811A SET Monoblock physical layout suggestions
  56. Automated bias
  57. OTL or parafeed?
  58. tubes: Jcm 900 Slx 50watt
  59. Reversing mains toroids for HT
  60. 5881/6L6WGC and 12AT7WA replacement
  61. Direction for Mounting Transformers
  62. Ecf80
  63. feedback phasing
  64. Cryotubes? Cryogenically Frozen valves
  65. European Triode Festival 2005
  66. PSU capacitors
  67. Question on shared rectifier / signal tube filament windings
  68. Heathkit rebuild or...?
  69. Fisher 500B OPT/Feedback Questions
  70. Transformer selection question
  71. Grounded Grid Help
  72. EF86 penthode
  73. Any audio use for ER21A?
  74. Upgrading a sonic frontiers SFS-80
  75. Hum problem
  76. low frequency oscillation in 12B4 linestage
  77. Balanced volume control question
  78. Need Help for Power Supply for gg Preamp
  79. OTL 6c33c Ciufolli v8.2 low voltage rails
  80. Any way to extend OPT low-frequency response?
  81. RCA Phono Stage Redux
  82. About tube codes
  83. More Joules? Tube or Solid State PSU?
  84. EL34 schematic confusion
  85. 2-stage DHT: high-mu vs. interstage stepup
  86. Understanding this power supply
  87. 6V6G recommended schematic
  88. parallel CRC Filtering for B+
  89. 6v6. 6lg Gain Max Voltage
  90. More buffer questions
  91. Benchtop PS
  92. Chassis labels
  93. LM317 Regulator Problem
  94. Can I afford my SE amp ??
  95. 12B4 versus 6S4 for linestage
  96. Function Generator Probe?
  97. Otl Set?
  98. Tektronix TDS2000 series is a noisy scope
  99. vanderveen's 30W PP amp..
  100. Roberts/Akai M series amp problems
  101. What speaker to use with my tube clone
  102. What’s the best tube amplifier you can build?
  103. Cathode Follower Buffer Input Impedance
  104. EL84 as Preamp and as Crossover
  105. Wondering if Upcoming DIY design will work with Tubes? Cheap DIY Kits?
  106. EL 84 Single Ended Integrated
  107. "2 Stage" PP 7591 Amp
  108. Jolida 1301a with Mission M71 speakers?
  109. EL34 SE in 430V?
  110. EL 84 PPP/PP Class A Triode schematic
  111. Almarro A318A
  112. beckman berkley model 7360
  113. spice model for UL output transformer?
  114. Need help with my new amp
  115. Motor caps
  116. E88CC Mullard fake
  117. Anyone try sharp cutoff pentodes in a p-p output stage?
  118. 845 A2 Monoblock Project
  119. newb needs help on simple el84 amp PS
  120. Newbie's power supply woes
  121. Question about M7 Preamp
  122. Which amp to DIY as a first project?
  123. help for psu
  124. tube amp
  125. Will a 6BH6 work in an Aikido?
  126. Tubes and maximum ratings
  127. FireFly Amp Question
  128. help needed 1st tube diy
  129. Help for newbie building Toccata preamp
  130. Diy Orange guitar amp
  131. Hybrid amp -> tube for VAS stage
  132. I recently inherited a Heathkit HO-10 monitor o-scope...
  133. Laney PA amp help!
  134. Aikido tube choice
  135. Biasing pre-amp problem
  136. Help with identifying tube
  137. Off Topic Holiday Cheer
  138. Prototype preamp example
  139. PV10AL Transformer burned, help!
  140. EL34 Pentode in Push-Pull!
  141. Mcintosh MX110 repair
  142. Mains Transformer Question
  143. Loaded Question
  144. A BIG SCRATCH in my speakers? Help me please.
  145. New Production Tung Sol 6550 Tubes - Opinions
  146. Looking to build a tube integrated
  147. Which high power CCS for output stage?
  148. Using a mosfet to drop B+?
  149. drawings vs. schematics
  150. New TEK Scopes
  151. Transfos Anyone?
  152. Ripple guidelines for power supplies
  153. Mains transformer orientation
  154. New Nightmare (Guitar Amp)
  155. AMD tube integrated tube amp
  156. Using Choke in LCRC filter in power supply
  157. Need good current sink JFET or MOSFET?
  158. Setting Up a Circuit for Testing
  159. 6H6 question
  160. Kennedy Tube Audio Website Hijacked
  161. Yet another 12B4 line stage, or is the 12B4 better than the Grounded Grid.....
  162. transformer for Philips AG9015
  163. Real McTube Help
  164. Where are the 307A / VT225 amps?
  165. Anyone have a single el84 PPP OPT?
  166. Finished First Guitar Amp
  167. Using an old power transformer as a choke?
  168. Convergent Audio Technology SL-1 Scematics
  169. Poinz 6AQ5 Linestage
  170. microphone preamp
  171. Ticking noise, need help.
  172. Humm in my preamp...
  173. Enclosure suggestion/questions
  174. Calculating Tube Parameters +SPICE
  175. Loudspeaker for TUBE DIYer
  176. Tube ID 18R-AL1?
  177. 6l6gc Tube Drive
  178. Need a little help, TT and PC? Amp Kit?
  179. 12ax7 preamp
  180. 308/ecll800 Lorenz
  181. How did you do your Aikido?
  182. Thoughts on this 807 design
  183. Rectifier compatibilty
  184. Tube amp for biamped speaker
  185. 12ae6, 12fk6, 12fm6 diode specs
  186. Any software out there for taking the headache out of composite loadlines?
  187. Driving a single 6L6GC with 12AX7
  188. quick 50c5 to play around with
  189. A question about distortion in SE vs. PP designs:
  190. Need help on first tube amp rebuild -trans problems
  191. HAMMOND 125ESE Transformer WIRING
  192. preamp ps problem
  193. What does everybody really NEED???
  194. Marantz 7C still good today?
  195. Magnavox Chassis #196-55 Resistor Question
  196. 6BL7
  197. altec/peerless mystery amp
  198. 6gk8 triode pentode tube data
  199. Low Current Source
  200. Parallel Single-Ended Questions
  201. Tube power ratings
  202. 6DJ8 or 12xx7 for hybrid amp (Monarchy)
  203. What did I do wrong with LEGACY????
  204. seeking: tube for a SEP parallel feed like an EL84, but with a lower Ra
  205. Tube Tracer
  206. a question of tube behaviour
  207. Which tube? ECC82, 6SN7 or 6SL7
  208. oscillator
  209. The Covi Mark II Circlotron Amp
  210. HT transformers and polarity
  211. Hammond 156C - good Plate choke load??
  212. Music Man sixtyfive reverb head needs help!
  213. DIY pre-amp kit vote
  214. 6550 tubes
  215. Is the 6N6P a direct substitute for the 5687?
  216. SE amp using 1619 instead of 45 triode
  217. Akai M-7 Amp Schematics?
  218. asl 845 monos mods
  219. 3 stages... Two Power Supplies
  220. RCA 7094 tetrodes...
  221. KT88 push pull
  222. Tube amp fan?
  223. Ping gerd.....
  224. Need help finding Sovtel EL84M tubes
  225. Min. current draw for choke input?
  226. Passive RIAA with tubes
  227. Oscillation Mystery
  228. unison research P30K schem?
  229. Can I use a 5R4 GY in place of a 5AR4?
  230. Seeking for all Norman H. Crowhurst papers
  231. best way to elevate heater?
  232. Tube Load Line
  233. Homemade Vacuum Tube
  234. beardm70mk2-want less b+
  235. Need help with tube test data - fast
  236. Show me a schema 6Pi3C-E Push-pull
  237. Help about the 6SN7/5692 linestage
  238. Active load output stage
  239. Power supply question
  240. EL34 Triode Mode - G3 where?
  241. Is "reforming" Electrolytic Capacitors necessary?
  242. Screen grid driver for PL519?
  243. Best replacment for a 6F2
  244. Please Tell Me How To Modify And Upgrade My Music Angle 845 Amplifier?
  245. Pentode to Triode trick.
  246. 6550 making a Popping sound?
  247. Pie-eyed and puzzled...
  248. How about this schematic
  249. tube disorder
  250. PC choke in a preamp ?

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