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  1. Happy new year, sophielove.
  2. Need UTC PVM-3 primary ?
  3. power amp for small studio
  4. Preamp
  5. Problems with EICO HF-12 amp.
  6. Technics SU-30A's schema???
  7. Tube PWM driver
  8. Tungsram tube data
  9. S-5 Electronics K-12M (11MS8) 8 wpc PP Tube Amp Kit ($139)
  10. sharp cutoff pentode
  11. JJ E34L failure(s)
  12. Valve effects loop
  13. Bruce Moore "Companion" - Schematic
  14. CT impedence mismatch?
  15. Tube multiplex adapter parts replacement
  16. SY gets jiggy (5692 measurements)
  17. Tube Drag Racing!
  18. OTL, quick `n dirty
  19. 6V6 stereo amp
  20. humming from amplifier
  21. Mesa boogie
  22. Any tube audiophile in New Dephli, India
  23. What are terminal 1 & 4 of 300B tube
  24. Tube Nube - need advice on Scott LK150
  25. Pentode AB1 or AB2?
  26. #56 tube line stage
  27. **** another unusual hum problem !!
  28. Any comments on Eico HF-14 and HF-85
  29. sensitivities of amplifier configurations
  30. Building a Sun Audio sv 300b Mk II clone
  31. wanted information! vellman vaa-70 tube amp
  32. old tubes, what to do?
  33. Knowledge needed. Need answer to basic yet puzzling question.
  34. tubes 5965A and 5814A
  35. 6s4a as driver for 6as7 in SEAmp
  36. Tube Manufactures Cross references
  37. KT88 vs. KT90 bench test
  38. Variable Voltage Technology(uk) iron
  39. Tutorial: building techniques
  40. Anyone tried UL or Triode connecting the $140 kit ?
  41. Using microphone transformers as phase splitters .
  42. Tube Cooling Recommendations
  43. WE 300B Vs &&&&
  44. Line stage board off from overseas. problems
  45. Volume control for tube amplifier ??
  46. Mro Pt8
  47. looking for se 811 schematics
  48. 6ar5??
  49. bias meter
  50. 829B/3E29 datasheet triodemode
  51. A better triode strap?
  52. outputtransformer data needed
  53. info wanted about a output transformer
  54. WE316a/VT191 triode
  55. electrolytic can capacitor
  56. Bogen DS-225
  57. PPP KT66, Jensen P15N, Hammond PowTran 378CX/193L Choke
  58. 6V6GT and 6L6GT
  59. Unknown vaccumtubes
  60. Milleroux OPT
  61. Tube equalents.
  62. Western Electric 300B
  63. AVVT Tubes
  64. PAS phono. (curcio)
  65. Suitable Transformer for Etude 12B4A
  66. SE tube in mono amp
  67. Pentode current sink - how to connect the control grid?
  68. where are audio equipments in Beijing?
  69. Mullard 3-3 Question
  70. Grounded Grid w/ remote volume
  71. Modifying (Reducing) Screen Voltage
  72. coupling caps
  73. Single Stage Inverting or no?
  74. Using KT88 to build a monster champ amp?
  75. bias arrangements for P-P amps.
  76. Beginner's heaphone amp?
  77. Bridging
  78. Valve circuit in I, Robot
  79. ECC33, 34, 35 tubes?
  80. Help!! any good EL3n Push Pull circuits????
  81. What PP circuit to use for 6SN7 and 2a3?
  82. Stage classification and efficiency
  83. 2x8w SET choice.
  84. 10-15 mu DHT?
  85. Possible computer speaker amp
  86. Help me make a preamp decision
  87. Plitron PAT4006 - advice please
  88. Big valve
  89. Need help with PP pentode design
  90. EQ-circuits.
  91. measuring the power choke inductance confusion
  92. Single-end... which tube?
  93. bias voltage for 6BQ5 plate
  94. Fender Twin
  95. small poweramp with 12AH7 and 6AU6WA...
  96. Layout Check
  97. auto component placer with tube PCB prints
  98. Hammond 300BX for a Dynaco modified Mullard 5-20 circuit
  99. Audio Electronics Supply AE-1 problems
  100. Cunningham CX 301A
  101. Quicksilver zener diode mod
  102. ELC7? I need help to identify this valve
  103. Spice 3f4 "Koren" models
  104. parallel or push-pull
  105. Isolation
  106. Telefunken 6SN7; Are They Imported Or Genuine TFK MFD?
  107. Magic Gu15
  108. Help identifing RCA transformer
  109. Problem with tube overheating. PLEASE HELP
  110. Battery powered phono.
  111. Ancient Valve Amp and Rola Speaker PLEASE HELP!
  112. converting Heathkit AA-191 to a guitar amp
  113. Has anyone used a triode as a shunt regulator?
  114. EL84 SE design recommendations?
  115. need a good low parts phono tube preamp schematic....
  116. Shunt Feedback - effect on input impedance
  117. searching bogen db10a schematic
  118. Swinging choke?
  119. Schematic help. (thread split)
  120. Playing with a Magic Eye.
  121. A music coming from component.
  122. DIY meeting in Belgium ?
  123. EL34 Push Pull weirdness
  124. Balancing DC-coupled differential stages
  125. Jadis JPS 2 schematic
  126. Leak Stereo20 rebuild ?
  127. Vintage amp rebuild advice
  128. simple 6v6 push-pull schematic ?
  129. valve newbie; 6H1H pre-amp.
  130. Polyprops as cathode bypass
  131. Eventual 300B advice welcome!
  132. Thinking about getting into Tubes, any kit recommendations?
  133. Another Mullard 5-20.
  134. Subbing EL86 (6CW5) for EL84
  135. Valve Warmer/Distortion PCB
  136. Having a problem with building this 6C45 PP amp.
  137. Blue glow in tube. Is the tube dead or not?
  138. Repairing VTL TL2.5
  139. Another ECL86 (integrated this time)
  140. CJ MV55 triode mode
  141. Mullard 20W Amp
  142. Pro Model Tubes,for example Avalon
  143. How to find out which is which????
  144. Matching a preamp to high output impedance source
  145. VSE PP1 driver stage
  146. Thordarson Choke type 1-8C42
  147. Ediswan ECL86 datasheet wanted.
  148. Minimal approach with hybrid rectification: Is this possible?
  149. SS vs. Tube Rectification (and chokes)?
  150. Biasing a guitar amp for distortion
  151. Help wanted on SRPP preamp
  152. New Pas Question no photos
  153. amp-schematic questions...
  154. 5902 subminiature audio pentode
  155. TPP versus PSE.
  156. my fun....
  157. Schematic for Siemens F2a tube amp
  158. Snubber
  159. Which preamp ?
  160. Distortion+low volume..
  161. JJ Tesla
  162. Dynaco Pas
  163. feedback resistor
  164. Grid stoppers?
  165. Transcendent T8 with 12 output tubes
  166. Can anyone recommend a good buffer circuit
  167. happy with my MC-25
  168. A building block approach to valve amp design
  169. math quiz- input z triode amp
  170. Need help in circuit analysis
  171. learning how to do this
  172. 5687 and ccs?
  173. Improving damping factor for OTL
  174. Solid State delay on turn on relay.
  175. output transformer 9030/3
  176. Dynaco MKIII: new power cord
  177. 50C5 add-on amp
  178. Finished my stereo amp!!
  179. spl for 300b, kt88
  180. 2A3 tube review
  181. Audio Transformer Query
  182. Lafayette Phono preamp.
  183. Power transformer help
  184. EL84 SE question
  185. Pop/crackle in one channel
  186. 6GM8 Operating Point
  187. Propper grounding.
  188. EL34 plate glowing?
  189. wavlength audio cardinal
  190. help for tube noob
  191. Placing the powertransformer
  192. Tube audio periodicals
  193. PSU Question
  194. AudioInnovation 400
  195. c3g connections
  196. 6c33c-b Se
  197. tube preamp distortion
  198. What do you guys use to drill holes on chassis??
  199. S.E Problem.Urgent help Please!
  200. 6CA7, El34 or 5881?
  201. svetlana tubes
  202. 18C51 tube help!
  203. Power Tubes
  204. OTL PS question!!
  205. suggestions for the "lowest noise" pentode
  206. drd c3g/300b - help needed
  207. tubecad is back
  208. Happy birthday to tubes. Happy birthday to tubes. !
  209. Anyone used...gulp...kitparts.com?
  210. Grounding the Decware Se84sc
  211. Rogers Cadet III Schematics
  212. OTL amp help
  213. most simple design
  214. modify eagle el84 for guitar
  215. Please verify this circuit, is correct??
  216. EL509 vs EL519
  217. Heathkit AA-181 schematic needed
  218. EF 91 / Z77 Amp? help needed for newbie
  219. buzzing ST-70...plea for help
  220. Zen se-84cs question............
  221. Help with transformer
  222. 211 or EL34Triode?
  223. bootstrapping two SE transformers into a pp one?
  224. Gary Pimm's battery biased mosfet cccs
  225. PSU for SRPP - Voltage or Current Regulator?
  226. MC-30 rebuild, any ideas?
  227. ls-37 MM/MC RIAA Phono Amp from diyclub.biz
  228. Amorphous core transformers only work above 20KHz?
  229. Help with component layout?
  230. Output Transformer Sizing?
  231. PSU worries...
  232. 6BL7 as output tube for low power SE amp?
  233. advice for 6L6GC P-P amp
  234. need some info in a UTC s-16? anyone!
  235. 2A3 power supply transformer
  236. Hi-Bass button
  237. Searching for my first tube amp
  238. Which phono preamp ?
  239. potted transformers
  240. chokes and power supplies
  241. Heathkit A7 ?
  242. Best tweeter amp
  243. Should I use a cathode capacitor in my SE amp?
  244. Help, Just Starting Out
  245. JJ Tesla ECC99 spice model
  246. Newbie to tubes, what can they handle?
  247. Quicksilver rectifier
  248. SE amp question
  249. yaqin mc10k
  250. Hello again, plus a couple of Q`s.