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  1. 829B/3E29 datasheet triodemode
  2. A better triode strap?
  3. outputtransformer data needed
  4. info wanted about a output transformer
  5. WE316a/VT191 triode
  6. Bogen DS-225
  7. PPP KT66, Jensen P15N, Hammond PowTran 378CX/193L Choke
  8. 6V6GT and 6L6GT
  9. Unknown vaccumtubes
  10. Milleroux OPT
  11. Tube equalents.
  12. Western Electric 300B
  13. AVVT Tubes
  14. PAS phono. (curcio)
  15. Suitable Transformer for Etude 12B4A
  16. SE tube in mono amp
  17. Pentode current sink - how to connect the control grid?
  18. where are audio equipments in Beijing?
  19. Mullard 3-3 Question
  20. Grounded Grid w/ remote volume
  21. Modifying (Reducing) Screen Voltage
  22. coupling caps
  23. Single Stage Inverting or no?
  24. bias arrangements for P-P amps.
  25. Beginner's heaphone amp?
  26. Bridging
  27. Valve circuit in I, Robot
  28. ECC33, 34, 35 tubes?
  29. Help!! any good EL3n Push Pull circuits????
  30. What PP circuit to use for 6SN7 and 2a3?
  31. Stage classification and efficiency
  32. 2x8w SET choice.
  33. 10-15 mu DHT?
  34. Possible computer speaker amp
  35. Help me make a preamp decision
  36. Plitron PAT4006 - advice please
  37. Big valve
  38. Need help with PP pentode design
  39. EQ-circuits.
  40. measuring the power choke inductance confusion
  41. Single-end... which tube?
  42. bias voltage for 6BQ5 plate
  43. small poweramp with 12AH7 and 6AU6WA...
  44. Layout Check
  45. auto component placer with tube PCB prints
  46. Hammond 300BX for a Dynaco modified Mullard 5-20 circuit
  47. Audio Electronics Supply AE-1 problems
  48. Cunningham CX 301A
  49. Quicksilver zener diode mod
  50. ELC7? I need help to identify this valve
  51. Spice 3f4 "Koren" models
  52. parallel or push-pull
  53. Isolation
  54. Telefunken 6SN7; Are They Imported Or Genuine TFK MFD?
  55. Magic Gu15
  56. Help identifing RCA transformer
  57. Problem with tube overheating. PLEASE HELP
  58. Battery powered phono.
  59. Ancient Valve Amp and Rola Speaker PLEASE HELP!
  60. Has anyone used a triode as a shunt regulator?
  61. EL84 SE design recommendations?
  62. need a good low parts phono tube preamp schematic....
  63. Shunt Feedback - effect on input impedance
  64. searching bogen db10a schematic
  65. Swinging choke?
  66. Schematic help. (thread split)
  67. Playing with a Magic Eye.
  68. A music coming from component.
  69. DIY meeting in Belgium ?
  70. EL34 Push Pull weirdness
  71. Balancing DC-coupled differential stages
  72. Jadis JPS 2 schematic
  73. Leak Stereo20 rebuild ?
  74. Vintage amp rebuild advice
  75. simple 6v6 push-pull schematic ?
  76. valve newbie; 6H1H pre-amp.
  77. Polyprops as cathode bypass
  78. Eventual 300B advice welcome!
  79. Thinking about getting into Tubes, any kit recommendations?
  80. Another Mullard 5-20.
  81. Subbing EL86 (6CW5) for EL84
  82. Valve Warmer/Distortion PCB
  83. Having a problem with building this 6C45 PP amp.
  84. Blue glow in tube. Is the tube dead or not?
  85. Repairing VTL TL2.5
  86. Another ECL86 (integrated this time)
  87. CJ MV55 triode mode
  88. Mullard 20W Amp
  89. Pro Model Tubes,for example Avalon
  90. How to find out which is which????
  91. Matching a preamp to high output impedance source
  92. VSE PP1 driver stage
  93. Thordarson Choke type 1-8C42
  94. Ediswan ECL86 datasheet wanted.
  95. Minimal approach with hybrid rectification: Is this possible?
  96. SS vs. Tube Rectification (and chokes)?
  97. Help wanted on SRPP preamp
  98. New Pas Question no photos
  99. amp-schematic questions...
  100. 5902 subminiature audio pentode
  101. TPP versus PSE.
  102. my fun....
  103. Schematic for Siemens F2a tube amp
  104. Snubber
  105. Which preamp ?
  106. Distortion+low volume..
  107. JJ Tesla
  108. Dynaco Pas
  109. feedback resistor
  110. Grid stoppers?
  111. Transcendent T8 with 12 output tubes
  112. Can anyone recommend a good buffer circuit
  113. happy with my MC-25
  114. A building block approach to valve amp design
  115. math quiz- input z triode amp
  116. Need help in circuit analysis
  117. learning how to do this
  118. 5687 and ccs?
  119. Improving damping factor for OTL
  120. Solid State delay on turn on relay.
  121. output transformer 9030/3
  122. Dynaco MKIII: new power cord
  123. 50C5 add-on amp
  124. Finished my stereo amp!!
  125. spl for 300b, kt88
  126. 2A3 tube review
  127. Audio Transformer Query
  128. Lafayette Phono preamp.
  129. Power transformer help
  130. EL84 SE question
  131. Pop/crackle in one channel
  132. 6GM8 Operating Point
  133. Propper grounding.
  134. EL34 plate glowing?
  135. wavlength audio cardinal
  136. help for tube noob
  137. Placing the powertransformer
  138. Tube audio periodicals
  139. PSU Question
  140. AudioInnovation 400
  141. c3g connections
  142. 6c33c-b Se
  143. tube preamp distortion
  144. What do you guys use to drill holes on chassis??
  145. S.E Problem.Urgent help Please!
  146. 6CA7, El34 or 5881?
  147. svetlana tubes
  148. 18C51 tube help!
  149. Power Tubes
  150. OTL PS question!!
  151. suggestions for the "lowest noise" pentode
  152. drd c3g/300b - help needed
  153. tubecad is back
  154. Happy birthday to tubes. Happy birthday to tubes. !
  155. Anyone used...gulp...kitparts.com?
  156. Grounding the Decware Se84sc
  157. Rogers Cadet III Schematics
  158. OTL amp help
  159. most simple design
  160. Please verify this circuit, is correct??
  161. EL509 vs EL519
  162. Heathkit AA-181 schematic needed
  163. EF 91 / Z77 Amp? help needed for newbie
  164. buzzing ST-70...plea for help
  165. Zen se-84cs question............
  166. Help with transformer
  167. 211 or EL34Triode?
  168. bootstrapping two SE transformers into a pp one?
  169. Gary Pimm's battery biased mosfet cccs
  170. PSU for SRPP - Voltage or Current Regulator?
  171. MC-30 rebuild, any ideas?
  172. ls-37 MM/MC RIAA Phono Amp from diyclub.biz
  173. Amorphous core transformers only work above 20KHz?
  174. Help with component layout?
  175. Output Transformer Sizing?
  176. PSU worries...
  177. 6BL7 as output tube for low power SE amp?
  178. advice for 6L6GC P-P amp
  179. need some info in a UTC s-16? anyone!
  180. 2A3 power supply transformer
  181. Hi-Bass button
  182. Searching for my first tube amp
  183. Which phono preamp ?
  184. potted transformers
  185. chokes and power supplies
  186. Heathkit A7 ?
  187. Best tweeter amp
  188. Should I use a cathode capacitor in my SE amp?
  189. Help, Just Starting Out
  190. JJ Tesla ECC99 spice model
  191. Newbie to tubes, what can they handle?
  192. Quicksilver rectifier
  193. SE amp question
  194. yaqin mc10k
  195. Hello again, plus a couple of Q`s.
  196. My first home audio amp.
  197. Boostrapping?
  198. KT88 budget- Sovtek, Valve Art, EH?
  199. looking for schematic with 6em7 as a driver or...
  200. Multi-Channel Contol Unit
  201. TAD-EL84-STR experience?
  202. OTL question
  203. Good SET for newbie
  204. 6n1p simpl(ish) design
  205. Short list of DIY tube amps with PCBs available...
  206. Parallel feed (choke load) in output stage
  207. Few general question for starter?
  208. winding a simple PP output transformer
  209. Cats prefer 12E1's
  210. Tube vicinity heat problems(maybe?)
  211. Help me design pre-amp PS
  212. Power Amplifier With EL 34
  213. psu design problem
  214. Anyone have info about Jukka Tolonen?
  215. What do you think about this hybrid amp?
  216. Power supplies in mic tube preamps
  217. Hammond 1629SE
  218. 41 Valve Amp? vs 45
  219. DeWald M-1200
  220. Pilot AA-903B Tube Amp
  221. MC225 schematic needed
  222. Can you make a +/- supply with valve rectification ?
  223. Audio Innovations Series 500 problems
  224. Big, Heavy, Tube regulated Lambda Power supply
  225. Audio Note DAC Output Transformer Hookup
  226. Got some tubes, help me properly evaluate them
  227. current flow, which direction?
  228. Tube flashes upon turn on, why?
  229. Odd hum problem
  230. DHT and resistors in parallel w/ heater
  231. Presenting the "Fartbottle" deluxe.
  232. amp mod
  233. Need info about rare Siemens Cf "post tube"
  234. Tube defect - What is the problem.
  235. el84 amp
  236. VIETA A-215 Schematics
  237. 6AR6/6098 ultralinear
  238. Tube kit for beginner
  239. earthing!!!!!!!!!!
  240. Heating only one half of a double triode
  241. Quick question regarding PSU Designer II
  242. calculate +B in EL34 SE triode conect
  243. Help with driver transformer
  244. Tube buffer for a cd player
  245. VSE riaa equalizer phono stage
  246. AC or DC Heater?
  247. looking for a good valve amp to fix
  248. Best operating point for 7044 and 5687
  249. S&B TX102 and preamplier stages
  250. I need help

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