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

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