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  1. Volume control for tube amplifier ??
  2. Mro Pt8
  3. looking for se 811 schematics
  4. 6ar5??
  5. bias meter
  6. 829B/3E29 datasheet triodemode
  7. A better triode strap?
  8. outputtransformer data needed
  9. info wanted about a output transformer
  10. WE316a/VT191 triode
  11. electrolytic can capacitor
  12. Bogen DS-225
  13. PPP KT66, Jensen P15N, Hammond PowTran 378CX/193L Choke
  14. 6V6GT and 6L6GT
  15. Unknown vaccumtubes
  16. Milleroux OPT
  17. Tube equalents.
  18. Western Electric 300B
  19. AVVT Tubes
  20. PAS phono. (curcio)
  21. Suitable Transformer for Etude 12B4A
  22. SE tube in mono amp
  23. Pentode current sink - how to connect the control grid?
  24. where are audio equipments in Beijing?
  25. Mullard 3-3 Question
  26. Grounded Grid w/ remote volume
  27. Modifying (Reducing) Screen Voltage
  28. coupling caps
  29. Single Stage Inverting or no?
  30. Using KT88 to build a monster champ amp?
  31. bias arrangements for P-P amps.
  32. Beginner's heaphone amp?
  33. Bridging
  34. Valve circuit in I, Robot
  35. ECC33, 34, 35 tubes?
  36. Help!! any good EL3n Push Pull circuits????
  37. What PP circuit to use for 6SN7 and 2a3?
  38. Stage classification and efficiency
  39. 2x8w SET choice.
  40. 10-15 mu DHT?
  41. Possible computer speaker amp
  42. Help me make a preamp decision
  43. Plitron PAT4006 - advice please
  44. Big valve
  45. Need help with PP pentode design
  46. EQ-circuits.
  47. measuring the power choke inductance confusion
  48. Single-end... which tube?
  49. bias voltage for 6BQ5 plate
  50. Fender Twin
  51. small poweramp with 12AH7 and 6AU6WA...
  52. Layout Check
  53. auto component placer with tube PCB prints
  54. Hammond 300BX for a Dynaco modified Mullard 5-20 circuit
  55. Audio Electronics Supply AE-1 problems
  56. Cunningham CX 301A
  57. Quicksilver zener diode mod
  58. ELC7? I need help to identify this valve
  59. Spice 3f4 "Koren" models
  60. parallel or push-pull
  61. Isolation
  62. Telefunken 6SN7; Are They Imported Or Genuine TFK MFD?
  63. Magic Gu15
  64. Help identifing RCA transformer
  65. Problem with tube overheating. PLEASE HELP
  66. Battery powered phono.
  67. Ancient Valve Amp and Rola Speaker PLEASE HELP!
  68. converting Heathkit AA-191 to a guitar amp
  69. Has anyone used a triode as a shunt regulator?
  70. EL84 SE design recommendations?
  71. need a good low parts phono tube preamp schematic....
  72. Shunt Feedback - effect on input impedance
  73. searching bogen db10a schematic
  74. Swinging choke?
  75. Schematic help. (thread split)
  76. Playing with a Magic Eye.
  77. A music coming from component.
  78. DIY meeting in Belgium ?
  79. EL34 Push Pull weirdness
  80. Balancing DC-coupled differential stages
  81. Jadis JPS 2 schematic
  82. Leak Stereo20 rebuild ?
  83. Vintage amp rebuild advice
  84. simple 6v6 push-pull schematic ?
  85. valve newbie; 6H1H pre-amp.
  86. Polyprops as cathode bypass
  87. Eventual 300B advice welcome!
  88. Thinking about getting into Tubes, any kit recommendations?
  89. Another Mullard 5-20.
  90. Subbing EL86 (6CW5) for EL84
  91. Valve Warmer/Distortion PCB
  92. Having a problem with building this 6C45 PP amp.
  93. Blue glow in tube. Is the tube dead or not?
  94. Repairing VTL TL2.5
  95. Another ECL86 (integrated this time)
  96. CJ MV55 triode mode
  97. Mullard 20W Amp
  98. Pro Model Tubes,for example Avalon
  99. How to find out which is which????
  100. Matching a preamp to high output impedance source
  101. VSE PP1 driver stage
  102. Thordarson Choke type 1-8C42
  103. Ediswan ECL86 datasheet wanted.
  104. Minimal approach with hybrid rectification: Is this possible?
  105. SS vs. Tube Rectification (and chokes)?
  106. Biasing a guitar amp for distortion
  107. Help wanted on SRPP preamp
  108. New Pas Question no photos
  109. amp-schematic questions...
  110. 5902 subminiature audio pentode
  111. TPP versus PSE.
  112. my fun....
  113. Schematic for Siemens F2a tube amp
  114. Snubber
  115. Which preamp ?
  116. Distortion+low volume..
  117. JJ Tesla
  118. Dynaco Pas
  119. feedback resistor
  120. Grid stoppers?
  121. Transcendent T8 with 12 output tubes
  122. Can anyone recommend a good buffer circuit
  123. happy with my MC-25
  124. A building block approach to valve amp design
  125. math quiz- input z triode amp
  126. Need help in circuit analysis
  127. learning how to do this
  128. 5687 and ccs?
  129. Improving damping factor for OTL
  130. Solid State delay on turn on relay.
  131. output transformer 9030/3
  132. Dynaco MKIII: new power cord
  133. 50C5 add-on amp
  134. Finished my stereo amp!!
  135. spl for 300b, kt88
  136. 2A3 tube review
  137. Audio Transformer Query
  138. Lafayette Phono preamp.
  139. Power transformer help
  140. EL84 SE question
  141. Pop/crackle in one channel
  142. 6GM8 Operating Point
  143. Propper grounding.
  144. EL34 plate glowing?
  145. wavlength audio cardinal
  146. help for tube noob
  147. Placing the powertransformer
  148. Tube audio periodicals
  149. PSU Question
  150. AudioInnovation 400
  151. c3g connections
  152. 6c33c-b Se
  153. tube preamp distortion
  154. What do you guys use to drill holes on chassis??
  155. S.E Problem.Urgent help Please!
  156. 6CA7, El34 or 5881?
  157. svetlana tubes
  158. 18C51 tube help!
  159. Power Tubes
  160. OTL PS question!!
  161. suggestions for the "lowest noise" pentode
  162. drd c3g/300b - help needed
  163. tubecad is back
  164. Happy birthday to tubes. Happy birthday to tubes. !
  165. Anyone used...gulp...kitparts.com?
  166. Grounding the Decware Se84sc
  167. Rogers Cadet III Schematics
  168. OTL amp help
  169. most simple design
  170. modify eagle el84 for guitar
  171. Please verify this circuit, is correct??
  172. EL509 vs EL519
  173. Heathkit AA-181 schematic needed
  174. EF 91 / Z77 Amp? help needed for newbie
  175. buzzing ST-70...plea for help
  176. Zen se-84cs question............
  177. Help with transformer
  178. 211 or EL34Triode?
  179. bootstrapping two SE transformers into a pp one?
  180. Gary Pimm's battery biased mosfet cccs
  181. PSU for SRPP - Voltage or Current Regulator?
  182. MC-30 rebuild, any ideas?
  183. ls-37 MM/MC RIAA Phono Amp from diyclub.biz
  184. Amorphous core transformers only work above 20KHz?
  185. Help with component layout?
  186. Output Transformer Sizing?
  187. PSU worries...
  188. 6BL7 as output tube for low power SE amp?
  189. advice for 6L6GC P-P amp
  190. need some info in a UTC s-16? anyone!
  191. 2A3 power supply transformer
  192. Hi-Bass button
  193. Searching for my first tube amp
  194. Which phono preamp ?
  195. potted transformers
  196. chokes and power supplies
  197. Heathkit A7 ?
  198. Best tweeter amp
  199. Should I use a cathode capacitor in my SE amp?
  200. Help, Just Starting Out
  201. JJ Tesla ECC99 spice model
  202. Newbie to tubes, what can they handle?
  203. Quicksilver rectifier
  204. SE amp question
  205. yaqin mc10k
  206. Hello again, plus a couple of Q`s.
  207. My first home audio amp.
  208. Boostrapping?
  209. KT88 budget- Sovtek, Valve Art, EH?
  210. Tube Bass Amp Schematic
  211. looking for schematic with 6em7 as a driver or...
  212. Multi-Channel Contol Unit
  213. TAD-EL84-STR experience?
  214. OTL question
  215. Good SET for newbie
  216. 6n1p simpl(ish) design
  217. Short list of DIY tube amps with PCBs available...
  218. Parallel feed (choke load) in output stage
  219. Few general question for starter?
  220. winding a simple PP output transformer
  221. Cats prefer 12E1's
  222. Tube vicinity heat problems(maybe?)
  223. Help me design pre-amp PS
  224. Power Amplifier With EL 34
  225. psu design problem
  226. Anyone have info about Jukka Tolonen?
  227. What do you think about this hybrid amp?
  228. Power supplies in mic tube preamps
  229. Hammond 1629SE
  230. 41 Valve Amp? vs 45
  231. DeWald M-1200
  232. Jansen Bassman 50
  233. Pilot AA-903B Tube Amp
  234. MC225 schematic needed
  235. Can you make a +/- supply with valve rectification ?
  236. Audio Innovations Series 500 problems
  237. Big, Heavy, Tube regulated Lambda Power supply
  238. Audio Note DAC Output Transformer Hookup
  239. Got some tubes, help me properly evaluate them
  240. current flow, which direction?
  241. Tube flashes upon turn on, why?
  242. Odd hum problem
  243. DHT and resistors in parallel w/ heater
  244. Presenting the "Fartbottle" deluxe.
  245. amp mod
  246. Need info about rare Siemens Cf "post tube"
  247. Tube defect - What is the problem.
  248. el84 amp
  249. VIETA A-215 Schematics
  250. 6AR6/6098 ultralinear

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