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  1. Schematic help. (thread split)
  2. Playing with a Magic Eye.
  3. A music coming from component.
  4. DIY meeting in Belgium ?
  5. EL34 Push Pull weirdness
  6. Balancing DC-coupled differential stages
  7. Jadis JPS 2 schematic
  8. Leak Stereo20 rebuild ?
  9. Vintage amp rebuild advice
  10. simple 6v6 push-pull schematic ?
  11. valve newbie; 6H1H pre-amp.
  12. Polyprops as cathode bypass
  13. Eventual 300B advice welcome!
  14. Thinking about getting into Tubes, any kit recommendations?
  15. Another Mullard 5-20.
  16. Subbing EL86 (6CW5) for EL84
  17. Valve Warmer/Distortion PCB
  18. Having a problem with building this 6C45 PP amp.
  19. Blue glow in tube. Is the tube dead or not?
  20. Repairing VTL TL2.5
  21. Another ECL86 (integrated this time)
  22. CJ MV55 triode mode
  23. Mullard 20W Amp
  24. Pro Model Tubes,for example Avalon
  25. How to find out which is which????
  26. Matching a preamp to high output impedance source
  27. VSE PP1 driver stage
  28. Thordarson Choke type 1-8C42
  29. Ediswan ECL86 datasheet wanted.
  30. Minimal approach with hybrid rectification: Is this possible?
  31. SS vs. Tube Rectification (and chokes)?
  32. Biasing a guitar amp for distortion
  33. Help wanted on SRPP preamp
  34. New Pas Question no photos
  35. amp-schematic questions...
  36. 5902 subminiature audio pentode
  37. TPP versus PSE.
  38. my fun....
  39. Schematic for Siemens F2a tube amp
  40. Snubber
  41. Which preamp ?
  42. Distortion+low volume..
  43. JJ Tesla
  44. Dynaco Pas
  45. feedback resistor
  46. Grid stoppers?
  47. Transcendent T8 with 12 output tubes
  48. Can anyone recommend a good buffer circuit
  49. happy with my MC-25
  50. A building block approach to valve amp design
  51. math quiz- input z triode amp
  52. Need help in circuit analysis
  53. learning how to do this
  54. 5687 and ccs?
  55. Improving damping factor for OTL
  56. Solid State delay on turn on relay.
  57. output transformer 9030/3
  58. Dynaco MKIII: new power cord
  59. 50C5 add-on amp
  60. Finished my stereo amp!!
  61. spl for 300b, kt88
  62. 2A3 tube review
  63. Audio Transformer Query
  64. Lafayette Phono preamp.
  65. Power transformer help
  66. EL84 SE question
  67. Pop/crackle in one channel
  68. 6GM8 Operating Point
  69. Propper grounding.
  70. EL34 plate glowing?
  71. wavlength audio cardinal
  72. help for tube noob
  73. Placing the powertransformer
  74. Tube audio periodicals
  75. PSU Question
  76. AudioInnovation 400
  77. c3g connections
  78. 6c33c-b Se
  79. tube preamp distortion
  80. What do you guys use to drill holes on chassis??
  81. S.E Problem.Urgent help Please!
  82. 6CA7, El34 or 5881?
  83. svetlana tubes
  84. 18C51 tube help!
  85. Power Tubes
  86. OTL PS question!!
  87. suggestions for the "lowest noise" pentode
  88. drd c3g/300b - help needed
  89. tubecad is back
  90. Happy birthday to tubes. Happy birthday to tubes. !
  91. Anyone used...gulp...kitparts.com?
  92. Grounding the Decware Se84sc
  93. Rogers Cadet III Schematics
  94. OTL amp help
  95. most simple design
  96. modify eagle el84 for guitar
  97. Please verify this circuit, is correct??
  98. EL509 vs EL519
  99. Heathkit AA-181 schematic needed
  100. EF 91 / Z77 Amp? help needed for newbie
  101. buzzing ST-70...plea for help
  102. Zen se-84cs question............
  103. Help with transformer
  104. 211 or EL34Triode?
  105. bootstrapping two SE transformers into a pp one?
  106. Gary Pimm's battery biased mosfet cccs
  107. PSU for SRPP - Voltage or Current Regulator?
  108. MC-30 rebuild, any ideas?
  109. ls-37 MM/MC RIAA Phono Amp from diyclub.biz
  110. Amorphous core transformers only work above 20KHz?
  111. Help with component layout?
  112. Output Transformer Sizing?
  113. PSU worries...
  114. 6BL7 as output tube for low power SE amp?
  115. advice for 6L6GC P-P amp
  116. need some info in a UTC s-16? anyone!
  117. 2A3 power supply transformer
  118. Hi-Bass button
  119. Searching for my first tube amp
  120. Which phono preamp ?
  121. potted transformers
  122. chokes and power supplies
  123. Heathkit A7 ?
  124. Best tweeter amp
  125. Should I use a cathode capacitor in my SE amp?
  126. Help, Just Starting Out
  127. JJ Tesla ECC99 spice model
  128. Newbie to tubes, what can they handle?
  129. Quicksilver rectifier
  130. SE amp question
  131. yaqin mc10k
  132. Hello again, plus a couple of Q`s.
  133. My first home audio amp.
  134. Boostrapping?
  135. KT88 budget- Sovtek, Valve Art, EH?
  136. Tube Bass Amp Schematic
  137. looking for schematic with 6em7 as a driver or...
  138. Multi-Channel Contol Unit
  139. TAD-EL84-STR experience?
  140. OTL question
  141. Good SET for newbie
  142. 6n1p simpl(ish) design
  143. Short list of DIY tube amps with PCBs available...
  144. Parallel feed (choke load) in output stage
  145. Few general question for starter?
  146. winding a simple PP output transformer
  147. Cats prefer 12E1's
  148. Tube vicinity heat problems(maybe?)
  149. Help me design pre-amp PS
  150. Power Amplifier With EL 34
  151. psu design problem
  152. Anyone have info about Jukka Tolonen?
  153. What do you think about this hybrid amp?
  154. Power supplies in mic tube preamps
  155. Hammond 1629SE
  156. 41 Valve Amp? vs 45
  157. DeWald M-1200
  158. Jansen Bassman 50
  159. Pilot AA-903B Tube Amp
  160. MC225 schematic needed
  161. Can you make a +/- supply with valve rectification ?
  162. Audio Innovations Series 500 problems
  163. Big, Heavy, Tube regulated Lambda Power supply
  164. Audio Note DAC Output Transformer Hookup
  165. Got some tubes, help me properly evaluate them
  166. current flow, which direction?
  167. Tube flashes upon turn on, why?
  168. Odd hum problem
  169. DHT and resistors in parallel w/ heater
  170. Presenting the "Fartbottle" deluxe.
  171. amp mod
  172. Need info about rare Siemens Cf "post tube"
  173. Tube defect - What is the problem.
  174. el84 amp
  175. VIETA A-215 Schematics
  176. 6AR6/6098 ultralinear
  177. Tube kit for beginner
  178. earthing!!!!!!!!!!
  179. Heating only one half of a double triode
  180. Quick question regarding PSU Designer II
  181. calculate +B in EL34 SE triode conect
  182. Help with driver transformer
  183. Tube buffer for a cd player
  184. VSE riaa equalizer phono stage
  185. AC or DC Heater?
  186. looking for a good valve amp to fix
  187. Best operating point for 7044 and 5687
  188. S&B TX102 and preamplier stages
  189. I need help
  190. 6AS7 Mono Block's
  191. Filter/Regulator for B+ Supply
  192. Ecf 83
  193. cheap but good SET amplifier?
  194. DRD calculator
  195. Luxkit A1020 need help!!!
  196. Sophia Electric™ 300B 2.5V Mesh Plate Tubes
  197. benifits of auto bias
  198. KR Enterprice
  199. Preamp Boards From Hong Kong
  200. earthing
  201. Best sounding medium priced EL34 tube?
  202. 6CA5 Rectifier - B2Spice Model
  203. Help needed for a 6L6 Push pull amp
  204. constant current filament regs
  205. 6SN7 Basics (Newbie)
  206. Anyone tried the EH fat bottle 6CA7?
  207. TJ Tubes
  208. My tubes are going down. HELP !!!!
  209. Tino Zottola...where are you ?
  210. Lilliput amp
  211. filament rails
  212. Ss Diodes??
  213. Tube mic preamp
  214. CCS Filament Regulators for split filaments
  215. Quicksilver 8417 power supply caps?
  216. Audio Research LS7
  217. simple valve preamp
  218. valve preamp
  219. stand by switch or not?
  220. Omega Grand 6 and which amp?
  221. Line amp to speakers
  222. a bit more bass?
  223. Output transformer application help please.
  224. 5687 pre...some problems
  225. Recommendations needed for designs of PP pentode strapped as Triode
  226. KT88 push pull noob questions (sry)
  227. Need help identifying Stromberg Carlson Amp
  228. help needed diagnosing Grounded Grid power supply
  229. Building a tube Model????
  230. EL34 best for triode strapping ?
  231. Subwoofer amp
  232. Replacing Valves
  233. help me on 845 scheme....
  234. Help valve newb salvage some old TV tubes
  235. Cathode follower distortion results
  236. Bullet Proof 6L6GC Recommendation PLEASE
  237. newbie recomendations please
  238. NOS Tubes
  239. Audio Research CA-50 tube rolling
  240. OT on Decaware SE84C-S
  241. Change PP Amp Into Phono Pre?
  242. pl84 ore el84
  243. VTL Compact 100 Monoblock x 2.
  244. Battery bias a 6SU7 in the 300b billies
  245. Speaker impedance roughly 6 ohms, 2A3 SET...
  246. B2 Spice SE tranformer parameters
  247. Determining cap values (old radio)
  248. thoughts on 300b operating points with 3k output
  249. Grounded Grid wiring question
  250. PP-Triode , PP-UL , PP-Pentode-strapped-as-Triode

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