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  1. Magic Gu15
  2. Help identifing RCA transformer
  3. Problem with tube overheating. PLEASE HELP
  4. Battery powered phono.
  5. Ancient Valve Amp and Rola Speaker PLEASE HELP!
  6. Has anyone used a triode as a shunt regulator?
  7. EL84 SE design recommendations?
  8. need a good low parts phono tube preamp schematic....
  9. Shunt Feedback - effect on input impedance
  10. searching bogen db10a schematic
  11. Swinging choke?
  12. Schematic help. (thread split)
  13. Playing with a Magic Eye.
  14. A music coming from component.
  15. DIY meeting in Belgium ?
  16. EL34 Push Pull weirdness
  17. Balancing DC-coupled differential stages
  18. Jadis JPS 2 schematic
  19. Leak Stereo20 rebuild ?
  20. Vintage amp rebuild advice
  21. simple 6v6 push-pull schematic ?
  22. valve newbie; 6H1H pre-amp.
  23. Polyprops as cathode bypass
  24. Eventual 300B advice welcome!
  25. Thinking about getting into Tubes, any kit recommendations?
  26. Another Mullard 5-20.
  27. Subbing EL86 (6CW5) for EL84
  28. Valve Warmer/Distortion PCB
  29. Having a problem with building this 6C45 PP amp.
  30. Blue glow in tube. Is the tube dead or not?
  31. Repairing VTL TL2.5
  32. Another ECL86 (integrated this time)
  33. CJ MV55 triode mode
  34. Mullard 20W Amp
  35. Pro Model Tubes,for example Avalon
  36. How to find out which is which????
  37. Matching a preamp to high output impedance source
  38. VSE PP1 driver stage
  39. Thordarson Choke type 1-8C42
  40. Ediswan ECL86 datasheet wanted.
  41. Minimal approach with hybrid rectification: Is this possible?
  42. SS vs. Tube Rectification (and chokes)?
  43. Help wanted on SRPP preamp
  44. New Pas Question no photos
  45. amp-schematic questions...
  46. 5902 subminiature audio pentode
  47. TPP versus PSE.
  48. my fun....
  49. Schematic for Siemens F2a tube amp
  50. Snubber
  51. Which preamp ?
  52. Distortion+low volume..
  53. JJ Tesla
  54. Dynaco Pas
  55. feedback resistor
  56. Grid stoppers?
  57. Transcendent T8 with 12 output tubes
  58. Can anyone recommend a good buffer circuit
  59. happy with my MC-25
  60. A building block approach to valve amp design
  61. math quiz- input z triode amp
  62. Need help in circuit analysis
  63. learning how to do this
  64. 5687 and ccs?
  65. Improving damping factor for OTL
  66. Solid State delay on turn on relay.
  67. output transformer 9030/3
  68. Dynaco MKIII: new power cord
  69. 50C5 add-on amp
  70. Finished my stereo amp!!
  71. spl for 300b, kt88
  72. 2A3 tube review
  73. Audio Transformer Query
  74. Lafayette Phono preamp.
  75. Power transformer help
  76. EL84 SE question
  77. Pop/crackle in one channel
  78. 6GM8 Operating Point
  79. Propper grounding.
  80. EL34 plate glowing?
  81. wavlength audio cardinal
  82. help for tube noob
  83. Placing the powertransformer
  84. Tube audio periodicals
  85. PSU Question
  86. AudioInnovation 400
  87. c3g connections
  88. 6c33c-b Se
  89. tube preamp distortion
  90. What do you guys use to drill holes on chassis??
  91. S.E Problem.Urgent help Please!
  92. 6CA7, El34 or 5881?
  93. svetlana tubes
  94. 18C51 tube help!
  95. Power Tubes
  96. OTL PS question!!
  97. suggestions for the "lowest noise" pentode
  98. drd c3g/300b - help needed
  99. tubecad is back
  100. Happy birthday to tubes. Happy birthday to tubes. !
  101. Anyone used...gulp...kitparts.com?
  102. Grounding the Decware Se84sc
  103. Rogers Cadet III Schematics
  104. OTL amp help
  105. most simple design
  106. Please verify this circuit, is correct??
  107. EL509 vs EL519
  108. Heathkit AA-181 schematic needed
  109. EF 91 / Z77 Amp? help needed for newbie
  110. buzzing ST-70...plea for help
  111. Zen se-84cs question............
  112. Help with transformer
  113. 211 or EL34Triode?
  114. bootstrapping two SE transformers into a pp one?
  115. Gary Pimm's battery biased mosfet cccs
  116. PSU for SRPP - Voltage or Current Regulator?
  117. MC-30 rebuild, any ideas?
  118. ls-37 MM/MC RIAA Phono Amp from diyclub.biz
  119. Amorphous core transformers only work above 20KHz?
  120. Help with component layout?
  121. Output Transformer Sizing?
  122. PSU worries...
  123. 6BL7 as output tube for low power SE amp?
  124. advice for 6L6GC P-P amp
  125. need some info in a UTC s-16? anyone!
  126. 2A3 power supply transformer
  127. Hi-Bass button
  128. Searching for my first tube amp
  129. Which phono preamp ?
  130. potted transformers
  131. chokes and power supplies
  132. Heathkit A7 ?
  133. Best tweeter amp
  134. Should I use a cathode capacitor in my SE amp?
  135. Help, Just Starting Out
  136. JJ Tesla ECC99 spice model
  137. Newbie to tubes, what can they handle?
  138. Quicksilver rectifier
  139. SE amp question
  140. yaqin mc10k
  141. Hello again, plus a couple of Q`s.
  142. My first home audio amp.
  143. Boostrapping?
  144. KT88 budget- Sovtek, Valve Art, EH?
  145. looking for schematic with 6em7 as a driver or...
  146. Multi-Channel Contol Unit
  147. TAD-EL84-STR experience?
  148. OTL question
  149. Good SET for newbie
  150. 6n1p simpl(ish) design
  151. Short list of DIY tube amps with PCBs available...
  152. Parallel feed (choke load) in output stage
  153. Few general question for starter?
  154. winding a simple PP output transformer
  155. Cats prefer 12E1's
  156. Tube vicinity heat problems(maybe?)
  157. Help me design pre-amp PS
  158. Power Amplifier With EL 34
  159. psu design problem
  160. Anyone have info about Jukka Tolonen?
  161. What do you think about this hybrid amp?
  162. Power supplies in mic tube preamps
  163. Hammond 1629SE
  164. 41 Valve Amp? vs 45
  165. DeWald M-1200
  166. Pilot AA-903B Tube Amp
  167. MC225 schematic needed
  168. Can you make a +/- supply with valve rectification ?
  169. Audio Innovations Series 500 problems
  170. Big, Heavy, Tube regulated Lambda Power supply
  171. Audio Note DAC Output Transformer Hookup
  172. Got some tubes, help me properly evaluate them
  173. current flow, which direction?
  174. Tube flashes upon turn on, why?
  175. Odd hum problem
  176. DHT and resistors in parallel w/ heater
  177. Presenting the "Fartbottle" deluxe.
  178. amp mod
  179. Need info about rare Siemens Cf "post tube"
  180. Tube defect - What is the problem.
  181. el84 amp
  182. VIETA A-215 Schematics
  183. 6AR6/6098 ultralinear
  184. Tube kit for beginner
  185. earthing!!!!!!!!!!
  186. Heating only one half of a double triode
  187. Quick question regarding PSU Designer II
  188. calculate +B in EL34 SE triode conect
  189. Help with driver transformer
  190. Tube buffer for a cd player
  191. VSE riaa equalizer phono stage
  192. AC or DC Heater?
  193. looking for a good valve amp to fix
  194. Best operating point for 7044 and 5687
  195. S&B TX102 and preamplier stages
  196. I need help
  197. 6AS7 Mono Block's
  198. Filter/Regulator for B+ Supply
  199. Ecf 83
  200. cheap but good SET amplifier?
  201. DRD calculator
  202. Luxkit A1020 need help!!!
  203. Sophia Electric™ 300B 2.5V Mesh Plate Tubes
  204. benifits of auto bias
  205. KR Enterprice
  206. Preamp Boards From Hong Kong
  207. earthing
  208. Best sounding medium priced EL34 tube?
  209. 6CA5 Rectifier - B2Spice Model
  210. Help needed for a 6L6 Push pull amp
  211. constant current filament regs
  212. 6SN7 Basics (Newbie)
  213. Anyone tried the EH fat bottle 6CA7?
  214. TJ Tubes
  215. My tubes are going down. HELP !!!!
  216. Tino Zottola...where are you ?
  217. Lilliput amp
  218. filament rails
  219. Ss Diodes??
  220. Tube mic preamp
  221. CCS Filament Regulators for split filaments
  222. Quicksilver 8417 power supply caps?
  223. Audio Research LS7
  224. simple valve preamp
  225. valve preamp
  226. stand by switch or not?
  227. Omega Grand 6 and which amp?
  228. Line amp to speakers
  229. a bit more bass?
  230. Output transformer application help please.
  231. 5687 pre...some problems
  232. Recommendations needed for designs of PP pentode strapped as Triode
  233. KT88 push pull noob questions (sry)
  234. Need help identifying Stromberg Carlson Amp
  235. help needed diagnosing Grounded Grid power supply
  236. Building a tube Model????
  237. EL34 best for triode strapping ?
  238. Subwoofer amp
  239. Replacing Valves
  240. help me on 845 scheme....
  241. Help valve newb salvage some old TV tubes
  242. Cathode follower distortion results
  243. Bullet Proof 6L6GC Recommendation PLEASE
  244. newbie recomendations please
  245. NOS Tubes
  246. Audio Research CA-50 tube rolling
  247. OT on Decaware SE84C-S
  248. Change PP Amp Into Phono Pre?
  249. pl84 ore el84
  250. VTL Compact 100 Monoblock x 2.

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