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

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