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  1. simple 6v6 push-pull schematic ?
  2. valve newbie; 6H1H pre-amp.
  3. Polyprops as cathode bypass
  4. Eventual 300B advice welcome!
  5. Thinking about getting into Tubes, any kit recommendations?
  6. Another Mullard 5-20.
  7. Subbing EL86 (6CW5) for EL84
  8. Valve Warmer/Distortion PCB
  9. Having a problem with building this 6C45 PP amp.
  10. Blue glow in tube. Is the tube dead or not?
  11. Repairing VTL TL2.5
  12. Another ECL86 (integrated this time)
  13. CJ MV55 triode mode
  14. Mullard 20W Amp
  15. Pro Model Tubes,for example Avalon
  16. How to find out which is which????
  17. Matching a preamp to high output impedance source
  18. VSE PP1 driver stage
  19. Thordarson Choke type 1-8C42
  20. Ediswan ECL86 datasheet wanted.
  21. Minimal approach with hybrid rectification: Is this possible?
  22. SS vs. Tube Rectification (and chokes)?
  23. Biasing a guitar amp for distortion
  24. Help wanted on SRPP preamp
  25. New Pas Question no photos
  26. amp-schematic questions...
  27. 5902 subminiature audio pentode
  28. TPP versus PSE.
  29. my fun....
  30. Schematic for Siemens F2a tube amp
  31. Snubber
  32. Which preamp ?
  33. Distortion+low volume..
  34. JJ Tesla
  35. Dynaco Pas
  36. feedback resistor
  37. Grid stoppers?
  38. Transcendent T8 with 12 output tubes
  39. Can anyone recommend a good buffer circuit
  40. happy with my MC-25
  41. A building block approach to valve amp design
  42. math quiz- input z triode amp
  43. Need help in circuit analysis
  44. learning how to do this
  45. 5687 and ccs?
  46. Improving damping factor for OTL
  47. Solid State delay on turn on relay.
  48. output transformer 9030/3
  49. Dynaco MKIII: new power cord
  50. 50C5 add-on amp
  51. Finished my stereo amp!!
  52. spl for 300b, kt88
  53. 2A3 tube review
  54. Audio Transformer Query
  55. Lafayette Phono preamp.
  56. Power transformer help
  57. EL84 SE question
  58. Pop/crackle in one channel
  59. 6GM8 Operating Point
  60. Propper grounding.
  61. EL34 plate glowing?
  62. wavlength audio cardinal
  63. help for tube noob
  64. Placing the powertransformer
  65. Tube audio periodicals
  66. PSU Question
  67. AudioInnovation 400
  68. c3g connections
  69. 6c33c-b Se
  70. tube preamp distortion
  71. What do you guys use to drill holes on chassis??
  72. S.E Problem.Urgent help Please!
  73. 6CA7, El34 or 5881?
  74. svetlana tubes
  75. 18C51 tube help!
  76. Power Tubes
  77. OTL PS question!!
  78. suggestions for the "lowest noise" pentode
  79. drd c3g/300b - help needed
  80. tubecad is back
  81. Happy birthday to tubes. Happy birthday to tubes. !
  82. Anyone used...gulp...kitparts.com?
  83. Grounding the Decware Se84sc
  84. Rogers Cadet III Schematics
  85. OTL amp help
  86. most simple design
  87. modify eagle el84 for guitar
  88. Please verify this circuit, is correct??
  89. EL509 vs EL519
  90. Heathkit AA-181 schematic needed
  91. EF 91 / Z77 Amp? help needed for newbie
  92. buzzing ST-70...plea for help
  93. Zen se-84cs question............
  94. Help with transformer
  95. 211 or EL34Triode?
  96. bootstrapping two SE transformers into a pp one?
  97. Gary Pimm's battery biased mosfet cccs
  98. PSU for SRPP - Voltage or Current Regulator?
  99. MC-30 rebuild, any ideas?
  100. ls-37 MM/MC RIAA Phono Amp from diyclub.biz
  101. Amorphous core transformers only work above 20KHz?
  102. Help with component layout?
  103. Output Transformer Sizing?
  104. PSU worries...
  105. 6BL7 as output tube for low power SE amp?
  106. advice for 6L6GC P-P amp
  107. need some info in a UTC s-16? anyone!
  108. 2A3 power supply transformer
  109. Hi-Bass button
  110. Searching for my first tube amp
  111. Which phono preamp ?
  112. potted transformers
  113. chokes and power supplies
  114. Heathkit A7 ?
  115. Best tweeter amp
  116. Should I use a cathode capacitor in my SE amp?
  117. Help, Just Starting Out
  118. JJ Tesla ECC99 spice model
  119. Newbie to tubes, what can they handle?
  120. Quicksilver rectifier
  121. SE amp question
  122. yaqin mc10k
  123. Hello again, plus a couple of Q`s.
  124. My first home audio amp.
  125. Boostrapping?
  126. KT88 budget- Sovtek, Valve Art, EH?
  127. Tube Bass Amp Schematic
  128. looking for schematic with 6em7 as a driver or...
  129. Multi-Channel Contol Unit
  130. TAD-EL84-STR experience?
  131. OTL question
  132. Good SET for newbie
  133. 6n1p simpl(ish) design
  134. Short list of DIY tube amps with PCBs available...
  135. Parallel feed (choke load) in output stage
  136. Few general question for starter?
  137. winding a simple PP output transformer
  138. Cats prefer 12E1's
  139. Tube vicinity heat problems(maybe?)
  140. Help me design pre-amp PS
  141. Power Amplifier With EL 34
  142. psu design problem
  143. Anyone have info about Jukka Tolonen?
  144. What do you think about this hybrid amp?
  145. Power supplies in mic tube preamps
  146. Hammond 1629SE
  147. 41 Valve Amp? vs 45
  148. DeWald M-1200
  149. Jansen Bassman 50
  150. Pilot AA-903B Tube Amp
  151. MC225 schematic needed
  152. Can you make a +/- supply with valve rectification ?
  153. Audio Innovations Series 500 problems
  154. Big, Heavy, Tube regulated Lambda Power supply
  155. Audio Note DAC Output Transformer Hookup
  156. Got some tubes, help me properly evaluate them
  157. current flow, which direction?
  158. Tube flashes upon turn on, why?
  159. Odd hum problem
  160. DHT and resistors in parallel w/ heater
  161. Presenting the "Fartbottle" deluxe.
  162. amp mod
  163. Need info about rare Siemens Cf "post tube"
  164. Tube defect - What is the problem.
  165. el84 amp
  166. VIETA A-215 Schematics
  167. 6AR6/6098 ultralinear
  168. Tube kit for beginner
  169. earthing!!!!!!!!!!
  170. Heating only one half of a double triode
  171. Quick question regarding PSU Designer II
  172. calculate +B in EL34 SE triode conect
  173. Help with driver transformer
  174. Tube buffer for a cd player
  175. VSE riaa equalizer phono stage
  176. AC or DC Heater?
  177. looking for a good valve amp to fix
  178. Best operating point for 7044 and 5687
  179. S&B TX102 and preamplier stages
  180. I need help
  181. 6AS7 Mono Block's
  182. Filter/Regulator for B+ Supply
  183. Ecf 83
  184. cheap but good SET amplifier?
  185. DRD calculator
  186. Luxkit A1020 need help!!!
  187. Sophia Electric™ 300B 2.5V Mesh Plate Tubes
  188. benifits of auto bias
  189. KR Enterprice
  190. Preamp Boards From Hong Kong
  191. earthing
  192. Best sounding medium priced EL34 tube?
  193. 6CA5 Rectifier - B2Spice Model
  194. Help needed for a 6L6 Push pull amp
  195. constant current filament regs
  196. 6SN7 Basics (Newbie)
  197. Anyone tried the EH fat bottle 6CA7?
  198. TJ Tubes
  199. My tubes are going down. HELP !!!!
  200. Tino Zottola...where are you ?
  201. Lilliput amp
  202. filament rails
  203. Ss Diodes??
  204. Tube mic preamp
  205. CCS Filament Regulators for split filaments
  206. Quicksilver 8417 power supply caps?
  207. Audio Research LS7
  208. simple valve preamp
  209. valve preamp
  210. stand by switch or not?
  211. Omega Grand 6 and which amp?
  212. Line amp to speakers
  213. a bit more bass?
  214. Output transformer application help please.
  215. 5687 pre...some problems
  216. Recommendations needed for designs of PP pentode strapped as Triode
  217. KT88 push pull noob questions (sry)
  218. Need help identifying Stromberg Carlson Amp
  219. help needed diagnosing Grounded Grid power supply
  220. Building a tube Model????
  221. EL34 best for triode strapping ?
  222. Subwoofer amp
  223. Replacing Valves
  224. help me on 845 scheme....
  225. Help valve newb salvage some old TV tubes
  226. Cathode follower distortion results
  227. Bullet Proof 6L6GC Recommendation PLEASE
  228. newbie recomendations please
  229. NOS Tubes
  230. Audio Research CA-50 tube rolling
  231. OT on Decaware SE84C-S
  232. Change PP Amp Into Phono Pre?
  233. pl84 ore el84
  234. VTL Compact 100 Monoblock x 2.
  235. Battery bias a 6SU7 in the 300b billies
  236. Speaker impedance roughly 6 ohms, 2A3 SET...
  237. B2 Spice SE tranformer parameters
  238. Determining cap values (old radio)
  239. thoughts on 300b operating points with 3k output
  240. Grounded Grid wiring question
  241. PP-Triode , PP-UL , PP-Pentode-strapped-as-Triode
  242. Found some EC8010
  243. SE PX4 or PX25 amp, anyone built one????????
  244. HAL-O Damping Instruments
  245. An intriguing 6S45P direct coupled 300B amplifier
  246. difference between Cayin and Jolida
  247. 417a line preamp help
  248. kenwood trio el84 push pull schematic
  249. Any comments on this design?
  250. Amp for speaker testing

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