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  1. Telefunken 6SN7; Are They Imported Or Genuine TFK MFD?
  2. Magic Gu15
  3. Help identifing RCA transformer
  4. Problem with tube overheating. PLEASE HELP
  5. Battery powered phono.
  6. Ancient Valve Amp and Rola Speaker PLEASE HELP!
  7. converting Heathkit AA-191 to a guitar amp
  8. Has anyone used a triode as a shunt regulator?
  9. EL84 SE design recommendations?
  10. need a good low parts phono tube preamp schematic....
  11. Shunt Feedback - effect on input impedance
  12. searching bogen db10a schematic
  13. Swinging choke?
  14. Schematic help. (thread split)
  15. Playing with a Magic Eye.
  16. A music coming from component.
  17. DIY meeting in Belgium ?
  18. EL34 Push Pull weirdness
  19. Balancing DC-coupled differential stages
  20. Jadis JPS 2 schematic
  21. Leak Stereo20 rebuild ?
  22. Vintage amp rebuild advice
  23. simple 6v6 push-pull schematic ?
  24. valve newbie; 6H1H pre-amp.
  25. Polyprops as cathode bypass
  26. Eventual 300B advice welcome!
  27. Thinking about getting into Tubes, any kit recommendations?
  28. Another Mullard 5-20.
  29. Subbing EL86 (6CW5) for EL84
  30. Valve Warmer/Distortion PCB
  31. Having a problem with building this 6C45 PP amp.
  32. Blue glow in tube. Is the tube dead or not?
  33. Repairing VTL TL2.5
  34. Another ECL86 (integrated this time)
  35. CJ MV55 triode mode
  36. Mullard 20W Amp
  37. Pro Model Tubes,for example Avalon
  38. How to find out which is which????
  39. Matching a preamp to high output impedance source
  40. VSE PP1 driver stage
  41. Thordarson Choke type 1-8C42
  42. Ediswan ECL86 datasheet wanted.
  43. Minimal approach with hybrid rectification: Is this possible?
  44. SS vs. Tube Rectification (and chokes)?
  45. Biasing a guitar amp for distortion
  46. Help wanted on SRPP preamp
  47. New Pas Question no photos
  48. amp-schematic questions...
  49. 5902 subminiature audio pentode
  50. TPP versus PSE.
  51. my fun....
  52. Schematic for Siemens F2a tube amp
  53. Snubber
  54. Which preamp ?
  55. Distortion+low volume..
  56. JJ Tesla
  57. Dynaco Pas
  58. feedback resistor
  59. Grid stoppers?
  60. Transcendent T8 with 12 output tubes
  61. Can anyone recommend a good buffer circuit
  62. happy with my MC-25
  63. A building block approach to valve amp design
  64. math quiz- input z triode amp
  65. Need help in circuit analysis
  66. learning how to do this
  67. 5687 and ccs?
  68. Improving damping factor for OTL
  69. Solid State delay on turn on relay.
  70. output transformer 9030/3
  71. Dynaco MKIII: new power cord
  72. 50C5 add-on amp
  73. Finished my stereo amp!!
  74. spl for 300b, kt88
  75. 2A3 tube review
  76. Audio Transformer Query
  77. Lafayette Phono preamp.
  78. Power transformer help
  79. EL84 SE question
  80. Pop/crackle in one channel
  81. 6GM8 Operating Point
  82. Propper grounding.
  83. EL34 plate glowing?
  84. wavlength audio cardinal
  85. help for tube noob
  86. Placing the powertransformer
  87. Tube audio periodicals
  88. PSU Question
  89. AudioInnovation 400
  90. c3g connections
  91. 6c33c-b Se
  92. tube preamp distortion
  93. What do you guys use to drill holes on chassis??
  94. S.E Problem.Urgent help Please!
  95. 6CA7, El34 or 5881?
  96. svetlana tubes
  97. 18C51 tube help!
  98. Power Tubes
  99. OTL PS question!!
  100. suggestions for the "lowest noise" pentode
  101. drd c3g/300b - help needed
  102. tubecad is back
  103. Happy birthday to tubes. Happy birthday to tubes. !
  104. Anyone used...gulp...kitparts.com?
  105. Grounding the Decware Se84sc
  106. Rogers Cadet III Schematics
  107. OTL amp help
  108. most simple design
  109. modify eagle el84 for guitar
  110. Please verify this circuit, is correct??
  111. EL509 vs EL519
  112. Heathkit AA-181 schematic needed
  113. EF 91 / Z77 Amp? help needed for newbie
  114. buzzing ST-70...plea for help
  115. Zen se-84cs question............
  116. Help with transformer
  117. 211 or EL34Triode?
  118. bootstrapping two SE transformers into a pp one?
  119. Gary Pimm's battery biased mosfet cccs
  120. PSU for SRPP - Voltage or Current Regulator?
  121. MC-30 rebuild, any ideas?
  122. ls-37 MM/MC RIAA Phono Amp from diyclub.biz
  123. Amorphous core transformers only work above 20KHz?
  124. Help with component layout?
  125. Output Transformer Sizing?
  126. PSU worries...
  127. 6BL7 as output tube for low power SE amp?
  128. advice for 6L6GC P-P amp
  129. need some info in a UTC s-16? anyone!
  130. 2A3 power supply transformer
  131. Hi-Bass button
  132. Searching for my first tube amp
  133. Which phono preamp ?
  134. potted transformers
  135. chokes and power supplies
  136. Heathkit A7 ?
  137. Best tweeter amp
  138. Should I use a cathode capacitor in my SE amp?
  139. Help, Just Starting Out
  140. JJ Tesla ECC99 spice model
  141. Newbie to tubes, what can they handle?
  142. Quicksilver rectifier
  143. SE amp question
  144. yaqin mc10k
  145. Hello again, plus a couple of Q`s.
  146. My first home audio amp.
  147. Boostrapping?
  148. KT88 budget- Sovtek, Valve Art, EH?
  149. Tube Bass Amp Schematic
  150. looking for schematic with 6em7 as a driver or...
  151. Multi-Channel Contol Unit
  152. TAD-EL84-STR experience?
  153. OTL question
  154. Good SET for newbie
  155. 6n1p simpl(ish) design
  156. Short list of DIY tube amps with PCBs available...
  157. Parallel feed (choke load) in output stage
  158. Few general question for starter?
  159. winding a simple PP output transformer
  160. Cats prefer 12E1's
  161. Tube vicinity heat problems(maybe?)
  162. Help me design pre-amp PS
  163. Power Amplifier With EL 34
  164. psu design problem
  165. Anyone have info about Jukka Tolonen?
  166. What do you think about this hybrid amp?
  167. Power supplies in mic tube preamps
  168. Hammond 1629SE
  169. 41 Valve Amp? vs 45
  170. DeWald M-1200
  171. Jansen Bassman 50
  172. Pilot AA-903B Tube Amp
  173. MC225 schematic needed
  174. Can you make a +/- supply with valve rectification ?
  175. Audio Innovations Series 500 problems
  176. Big, Heavy, Tube regulated Lambda Power supply
  177. Audio Note DAC Output Transformer Hookup
  178. Got some tubes, help me properly evaluate them
  179. current flow, which direction?
  180. Tube flashes upon turn on, why?
  181. Odd hum problem
  182. DHT and resistors in parallel w/ heater
  183. Presenting the "Fartbottle" deluxe.
  184. amp mod
  185. Need info about rare Siemens Cf "post tube"
  186. Tube defect - What is the problem.
  187. el84 amp
  188. VIETA A-215 Schematics
  189. 6AR6/6098 ultralinear
  190. Tube kit for beginner
  191. earthing!!!!!!!!!!
  192. Heating only one half of a double triode
  193. Quick question regarding PSU Designer II
  194. calculate +B in EL34 SE triode conect
  195. Help with driver transformer
  196. Tube buffer for a cd player
  197. VSE riaa equalizer phono stage
  198. AC or DC Heater?
  199. looking for a good valve amp to fix
  200. Best operating point for 7044 and 5687
  201. S&B TX102 and preamplier stages
  202. I need help
  203. 6AS7 Mono Block's
  204. Filter/Regulator for B+ Supply
  205. Ecf 83
  206. cheap but good SET amplifier?
  207. DRD calculator
  208. Luxkit A1020 need help!!!
  209. Sophia Electric™ 300B 2.5V Mesh Plate Tubes
  210. benifits of auto bias
  211. KR Enterprice
  212. Preamp Boards From Hong Kong
  213. earthing
  214. Best sounding medium priced EL34 tube?
  215. 6CA5 Rectifier - B2Spice Model
  216. Help needed for a 6L6 Push pull amp
  217. constant current filament regs
  218. 6SN7 Basics (Newbie)
  219. Anyone tried the EH fat bottle 6CA7?
  220. TJ Tubes
  221. My tubes are going down. HELP !!!!
  222. Tino Zottola...where are you ?
  223. Lilliput amp
  224. filament rails
  225. Ss Diodes??
  226. Tube mic preamp
  227. CCS Filament Regulators for split filaments
  228. Quicksilver 8417 power supply caps?
  229. Audio Research LS7
  230. simple valve preamp
  231. valve preamp
  232. stand by switch or not?
  233. Omega Grand 6 and which amp?
  234. Line amp to speakers
  235. a bit more bass?
  236. Output transformer application help please.
  237. 5687 pre...some problems
  238. Recommendations needed for designs of PP pentode strapped as Triode
  239. KT88 push pull noob questions (sry)
  240. Need help identifying Stromberg Carlson Amp
  241. help needed diagnosing Grounded Grid power supply
  242. Building a tube Model????
  243. EL34 best for triode strapping ?
  244. Subwoofer amp
  245. Replacing Valves
  246. help me on 845 scheme....
  247. Help valve newb salvage some old TV tubes
  248. Cathode follower distortion results
  249. Bullet Proof 6L6GC Recommendation PLEASE
  250. newbie recomendations please

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