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  1. Ancient Valve Amp and Rola Speaker PLEASE HELP!
  2. Has anyone used a triode as a shunt regulator?
  3. EL84 SE design recommendations?
  4. need a good low parts phono tube preamp schematic....
  5. Shunt Feedback - effect on input impedance
  6. searching bogen db10a schematic
  7. Swinging choke?
  8. Schematic help. (thread split)
  9. Playing with a Magic Eye.
  10. A music coming from component.
  11. DIY meeting in Belgium ?
  12. EL34 Push Pull weirdness
  13. Balancing DC-coupled differential stages
  14. Jadis JPS 2 schematic
  15. Leak Stereo20 rebuild ?
  16. Vintage amp rebuild advice
  17. simple 6v6 push-pull schematic ?
  18. valve newbie; 6H1H pre-amp.
  19. Polyprops as cathode bypass
  20. Eventual 300B advice welcome!
  21. Thinking about getting into Tubes, any kit recommendations?
  22. Another Mullard 5-20.
  23. Subbing EL86 (6CW5) for EL84
  24. Valve Warmer/Distortion PCB
  25. Having a problem with building this 6C45 PP amp.
  26. Blue glow in tube. Is the tube dead or not?
  27. Repairing VTL TL2.5
  28. Another ECL86 (integrated this time)
  29. CJ MV55 triode mode
  30. Mullard 20W Amp
  31. Pro Model Tubes,for example Avalon
  32. How to find out which is which????
  33. Matching a preamp to high output impedance source
  34. VSE PP1 driver stage
  35. Thordarson Choke type 1-8C42
  36. Ediswan ECL86 datasheet wanted.
  37. Minimal approach with hybrid rectification: Is this possible?
  38. SS vs. Tube Rectification (and chokes)?
  39. Help wanted on SRPP preamp
  40. New Pas Question no photos
  41. amp-schematic questions...
  42. 5902 subminiature audio pentode
  43. TPP versus PSE.
  44. my fun....
  45. Schematic for Siemens F2a tube amp
  46. Snubber
  47. Which preamp ?
  48. Distortion+low volume..
  49. JJ Tesla
  50. Dynaco Pas
  51. feedback resistor
  52. Grid stoppers?
  53. Transcendent T8 with 12 output tubes
  54. Can anyone recommend a good buffer circuit
  55. happy with my MC-25
  56. A building block approach to valve amp design
  57. math quiz- input z triode amp
  58. Need help in circuit analysis
  59. learning how to do this
  60. 5687 and ccs?
  61. Improving damping factor for OTL
  62. Solid State delay on turn on relay.
  63. output transformer 9030/3
  64. Dynaco MKIII: new power cord
  65. 50C5 add-on amp
  66. Finished my stereo amp!!
  67. spl for 300b, kt88
  68. 2A3 tube review
  69. Audio Transformer Query
  70. Lafayette Phono preamp.
  71. Power transformer help
  72. EL84 SE question
  73. Pop/crackle in one channel
  74. 6GM8 Operating Point
  75. Propper grounding.
  76. EL34 plate glowing?
  77. wavlength audio cardinal
  78. help for tube noob
  79. Placing the powertransformer
  80. Tube audio periodicals
  81. PSU Question
  82. AudioInnovation 400
  83. c3g connections
  84. 6c33c-b Se
  85. tube preamp distortion
  86. What do you guys use to drill holes on chassis??
  87. S.E Problem.Urgent help Please!
  88. 6CA7, El34 or 5881?
  89. svetlana tubes
  90. 18C51 tube help!
  91. Power Tubes
  92. OTL PS question!!
  93. suggestions for the "lowest noise" pentode
  94. drd c3g/300b - help needed
  95. tubecad is back
  96. Happy birthday to tubes. Happy birthday to tubes. !
  97. Anyone used...gulp...kitparts.com?
  98. Grounding the Decware Se84sc
  99. Rogers Cadet III Schematics
  100. OTL amp help
  101. most simple design
  102. Please verify this circuit, is correct??
  103. EL509 vs EL519
  104. Heathkit AA-181 schematic needed
  105. EF 91 / Z77 Amp? help needed for newbie
  106. buzzing ST-70...plea for help
  107. Zen se-84cs question............
  108. Help with transformer
  109. 211 or EL34Triode?
  110. bootstrapping two SE transformers into a pp one?
  111. Gary Pimm's battery biased mosfet cccs
  112. PSU for SRPP - Voltage or Current Regulator?
  113. MC-30 rebuild, any ideas?
  114. ls-37 MM/MC RIAA Phono Amp from diyclub.biz
  115. Amorphous core transformers only work above 20KHz?
  116. Help with component layout?
  117. Output Transformer Sizing?
  118. PSU worries...
  119. 6BL7 as output tube for low power SE amp?
  120. advice for 6L6GC P-P amp
  121. need some info in a UTC s-16? anyone!
  122. 2A3 power supply transformer
  123. Hi-Bass button
  124. Searching for my first tube amp
  125. Which phono preamp ?
  126. potted transformers
  127. chokes and power supplies
  128. Heathkit A7 ?
  129. Best tweeter amp
  130. Should I use a cathode capacitor in my SE amp?
  131. Help, Just Starting Out
  132. JJ Tesla ECC99 spice model
  133. Newbie to tubes, what can they handle?
  134. Quicksilver rectifier
  135. SE amp question
  136. yaqin mc10k
  137. Hello again, plus a couple of Q`s.
  138. My first home audio amp.
  139. Boostrapping?
  140. KT88 budget- Sovtek, Valve Art, EH?
  141. looking for schematic with 6em7 as a driver or...
  142. Multi-Channel Contol Unit
  143. TAD-EL84-STR experience?
  144. OTL question
  145. Good SET for newbie
  146. 6n1p simpl(ish) design
  147. Short list of DIY tube amps with PCBs available...
  148. Parallel feed (choke load) in output stage
  149. Few general question for starter?
  150. winding a simple PP output transformer
  151. Cats prefer 12E1's
  152. Tube vicinity heat problems(maybe?)
  153. Help me design pre-amp PS
  154. Power Amplifier With EL 34
  155. psu design problem
  156. Anyone have info about Jukka Tolonen?
  157. What do you think about this hybrid amp?
  158. Power supplies in mic tube preamps
  159. Hammond 1629SE
  160. 41 Valve Amp? vs 45
  161. DeWald M-1200
  162. Pilot AA-903B Tube Amp
  163. MC225 schematic needed
  164. Can you make a +/- supply with valve rectification ?
  165. Audio Innovations Series 500 problems
  166. Big, Heavy, Tube regulated Lambda Power supply
  167. Audio Note DAC Output Transformer Hookup
  168. Got some tubes, help me properly evaluate them
  169. current flow, which direction?
  170. Tube flashes upon turn on, why?
  171. Odd hum problem
  172. DHT and resistors in parallel w/ heater
  173. Presenting the "Fartbottle" deluxe.
  174. amp mod
  175. Need info about rare Siemens Cf "post tube"
  176. Tube defect - What is the problem.
  177. el84 amp
  178. VIETA A-215 Schematics
  179. 6AR6/6098 ultralinear
  180. Tube kit for beginner
  181. earthing!!!!!!!!!!
  182. Heating only one half of a double triode
  183. Quick question regarding PSU Designer II
  184. calculate +B in EL34 SE triode conect
  185. Help with driver transformer
  186. Tube buffer for a cd player
  187. VSE riaa equalizer phono stage
  188. AC or DC Heater?
  189. looking for a good valve amp to fix
  190. Best operating point for 7044 and 5687
  191. S&B TX102 and preamplier stages
  192. I need help
  193. 6AS7 Mono Block's
  194. Filter/Regulator for B+ Supply
  195. Ecf 83
  196. cheap but good SET amplifier?
  197. DRD calculator
  198. Luxkit A1020 need help!!!
  199. Sophia Electric™ 300B 2.5V Mesh Plate Tubes
  200. benifits of auto bias
  201. KR Enterprice
  202. Preamp Boards From Hong Kong
  203. earthing
  204. Best sounding medium priced EL34 tube?
  205. 6CA5 Rectifier - B2Spice Model
  206. Help needed for a 6L6 Push pull amp
  207. constant current filament regs
  208. 6SN7 Basics (Newbie)
  209. Anyone tried the EH fat bottle 6CA7?
  210. TJ Tubes
  211. My tubes are going down. HELP !!!!
  212. Tino Zottola...where are you ?
  213. Lilliput amp
  214. filament rails
  215. Ss Diodes??
  216. Tube mic preamp
  217. CCS Filament Regulators for split filaments
  218. Quicksilver 8417 power supply caps?
  219. Audio Research LS7
  220. simple valve preamp
  221. valve preamp
  222. stand by switch or not?
  223. Omega Grand 6 and which amp?
  224. Line amp to speakers
  225. a bit more bass?
  226. Output transformer application help please.
  227. 5687 pre...some problems
  228. Recommendations needed for designs of PP pentode strapped as Triode
  229. KT88 push pull noob questions (sry)
  230. Need help identifying Stromberg Carlson Amp
  231. help needed diagnosing Grounded Grid power supply
  232. Building a tube Model????
  233. EL34 best for triode strapping ?
  234. Subwoofer amp
  235. Replacing Valves
  236. help me on 845 scheme....
  237. Help valve newb salvage some old TV tubes
  238. Cathode follower distortion results
  239. Bullet Proof 6L6GC Recommendation PLEASE
  240. newbie recomendations please
  241. NOS Tubes
  242. Audio Research CA-50 tube rolling
  243. OT on Decaware SE84C-S
  244. Change PP Amp Into Phono Pre?
  245. pl84 ore el84
  246. VTL Compact 100 Monoblock x 2.
  247. Battery bias a 6SU7 in the 300b billies
  248. Speaker impedance roughly 6 ohms, 2A3 SET...
  249. B2 Spice SE tranformer parameters
  250. Determining cap values (old radio)

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