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  1. estimated price tube preamp
  2. Battery tubes
  3. 6.3V rectifiers....
  4. how do i figure out what's wrong with this (vintage) amp
  5. Where’s ECC81 data?
  6. Small pentodes push pull tube amps
  7. Buying new tubes
  8. Help with Hybrid Shuntregulator!
  9. Tube Preamp Coloring Box?
  10. "Parafeed trafo inverted phase"
  11. Tubes to avoid
  12. Is there a stock 6c33c-b Transformer?
  13. How does one "breadboard" an amp?
  14. help please, designing preamp
  15. help designing preamp
  16. Help needed here
  17. Line matching trafos as OPT's, and other cheapskate ideas? Any good?
  18. cheap SE amps
  19. Comments on 71a PP Pre-amp
  20. Depletion mode mosfet cascoded constant current source.
  21. Preamp schematic...
  22. A very stupid mistake!!!!!
  23. Interesting challenge:GU 50 output stage!
  24. Wiring Filaments with Center Tapped Secondaries
  25. Walt Jung(?) tube opamp
  26. Bottlehead Seduction Phono stage
  27. For all new tube junkies
  28. Quicksilver 8417 model changes
  29. Exact RIAA numbers?
  30. which 300B project? help please
  31. PP-KT88 Kit Opinion
  32. Microphonics
  33. ...Baby tube Guitar amp...
  34. Acoustat X amp schematic
  35. Step Attenuators
  36. DiyParadiso kits
  37. 6L6 Design in EDN Mag
  38. Tube Theory
  39. ECC81 or CV4024?
  40. Copper Binding Posts
  41. Running Tube Amp Construction
  42. Hello all this is my first post and I have an XLR Question.
  43. Dynaco Sca-35
  44. Hold to be a good news to all diyers.
  45. 25eh5
  46. 6cd6
  47. SE with ECF80/EL84 - from newbie
  48. Effects of high heater voltage?
  49. 6080 SE amps? - parafeed or otherwise.
  50. Parafeed
  51. MY Morgan Jones headamp.
  52. 6H30Pi variants
  53. "zeze" sound in diy tume pre-amp
  54. Good sounding 6V6 PP UL driver circuit?
  55. TV Damper Diodes
  56. Autobias for 6L6/EL34/KT88
  57. RCA 12AT7 or Mullard CV4024?
  58. Tube Regulator
  59. How much ripple??
  60. Lumley M250 Woes
  61. What is a trigger tube used for?
  62. rebuilding 6L6 amp ... suggestions?
  63. Tube life question
  64. RIAA phono preamp using single ECC83
  65. Quicksilver front end mods
  66. Values for grid stoppers for 6922...
  67. PP quiescent point
  68. Choke load frequency response and distortion
  69. a tiny, all DHT, push-pull amp
  70. Hey fdegrove, OTL monoblock.
  71. Audio Electronics AE1 preamp
  72. OTL Headphoneamplifier with 12AU7 or 12AX7
  73. Suggestions from the tube world
  74. Camcorder photos
  75. Finally got a digital camera...
  76. OPT for SEKT88
  77. A single FET to drive a power tube (directely ...from DAC)
  78. Electronic Industries Modified DYNACO ST 70
  79. KT88se with 3K outputtransformer ?
  80. Using TVC as a filter?
  81. 845 or 813 valves at 600V?
  82. transformer ?
  83. How much Voltage...
  84. Help in finding schematic
  85. impedance matching
  86. Selecting audio tranny core size
  87. U+Fk and U-Fk
  88. Woohoo! My First SET...
  89. 2nd & 3rd Harmonic Distortion curves for 5B/255M (807)
  90. 6CK4 PP Amp
  91. A question for Bourneville.
  92. Output Transformer specs
  93. No Mistaking A Triode.
  94. airtight atm-1
  95. dac tube output stage..pls help.
  96. Heathkit IT-17 Tube checker
  97. What's this?
  98. Standby switch for Quad II?
  99. What Speakers Do Tube Lovers Used?
  100. RC-coupled stage using ½ 6N1P
  101. What to build w/ Akai parts?
  102. 7189 in pentode mode?
  103. Finally. Music!!!
  104. Another tube radio
  105. Differential to single ended...
  106. Best Tube 4 Solid State
  107. Problem with Quicksilver amp
  108. cathode amp
  109. Wanted: 6922 / 6DJ8 Preamp Kit / Schematic
  110. How about a P-P DHP amp?
  111. simple, cheap, 6L6 amp? help
  112. 417A Line Amp
  113. Single end 6550 or KT88 amp Ideas please
  114. Simple cheap 2A3 stereo amp
  115. Triode Amps
  116. Audiopax 88 Power Amp
  117. Prefered type of components
  118. I found more junk!
  119. My Preamp
  120. Hum when volume is turned down
  121. Req. What does this parameter mean?
  122. Frank's Ultimate Tube Preamp.
  123. Mullard 5-20
  124. 156C... even cheaper now.
  125. Simple IT PP
  126. Dumb question: How do I increase Dp on this SET?
  127. Experiences with S&B102 TVC
  128. Melos High Current Triode
  129. Re-tubing Quickie M60 (EL34 quads)
  130. A new fashion tube design!
  131. mmm.... zero-bias class B twin triode amp
  132. 6SN7 redone
  133. Need some help with this...
  134. What tube is this?
  135. KT4040 Kit
  136. so here's how it sounds : (300b)
  137. Mullard 3-3
  138. shielding cans
  139. Help with common-cathode circuit.
  140. Hammond 125E improved?
  141. Separate power supply chassis- with a difference!
  142. 1St Tube Amp
  143. Help - tube radio
  144. Help newbie with tube-amp schematics
  145. This Guy is unbelivable!
  146. Strange filament behavour
  147. Triode curves for 6CA7, KT88 and 6550
  148. Well, tell me what you think ( 300b )
  149. More of Joel's preamp...
  150. data for 6V6 in triode mode?
  151. Help me design a pre with odd looking tubes
  152. Suggestions for top bal out tube pre?
  153. Plus biasing heater (220vdc above ground)
  154. Quicksilver 8417 tube install
  155. Help with R values
  156. With a bang and a flash - it works.....ideas anyone?
  157. Quad II eating valves?
  158. sunday daydreamin'
  159. Thrift store find
  160. New WE 300b's blue glow
  161. Current limit of EL84 grid?
  162. QuestionSSS about 300B circuit
  163. Help with new project...
  164. help needed from the 300b crowd!
  165. 1937 Gibson guitar amp
  166. Humming problem with 5687? SE amp design.
  167. QUAD II mains at 240VAC instead of 220VAC?
  168. monoblock vs. one chassis?
  169. EL 156 - what to do?
  170. Joel's 6SN7 preamp (photo)
  171. Newbee looking to build Valve Preamp
  172. The attraction of vacuum tubes / valves.
  173. What do with these tubes...
  174. looking to make simple distortion pedal
  175. Simple tube preamp...
  176. LCR RIAA AND TUBES.
  177. WTB Output Transformers
  178. 2A3 pp biasing schemes compared.
  179. 7199 glowing purple?
  180. Preamp has Neg waveform clip at 11.3 volts out
  181. Remote Controlled Tube Amp
  182. A few questions
  183. Using relays in high voltage circuits
  184. TDA1541 with passive filter
  185. tune 'em up - old russian radios
  186. Gas-coupled 6L6/6BG6-G SE
  187. 01aa?
  188. Gain for common anode....
  189. Too much capacitance in power supply?
  190. Aloha
  191. Gary P's Pre
  192. Instock designer in potential lawsuit!!
  193. Troubleshooting Problem in Tube Preamp
  194. 0.5ml of Snake Oil for $59
  195. Output impedance
  196. to DIY or not to DIY
  197. the OTHER tubes forum=yuck!
  198. 3A/110B into a LL1680 Preamp
  199. New output transformers for Quicksilver amplifier
  200. 2 output transformers in 1 amp?
  201. Parallel feed OT
  202. DIY Tube Microphone preamplifier
  203. 6M5 valve
  204. Can I use a 1/8 watt resistors here?
  205. toroid Transformer as power Transformer for tube
  206. Trying to find............
  207. Balancing output tubes by changing heater voltage.
  208. Push Pull Output Stage Question
  209. auto bias on a Quicksilver KT-88 amp
  210. SEPP for philips 800 ohm loudspeaker
  211. anyone tried 12HG7 as a driver ?
  212. Old tube amp
  213. Testing paper-in-oil capacitors
  214. need ´´quiet´´filament supply for 26
  215. New Guy w/my Foreplay
  216. Spice models for circuitmaker
  217. I need the Schematic of Audio Research ph3
  218. Audio Research SP9 guilty of screeching sounds!
  219. Humm
  220. Technics variation of Futterman SEPP.
  221. How low should PSU ripple voltage be in a preamp?
  222. Tube tester
  223. 6dn7
  224. Power supply Schematic Counterpoint SA -3000 Help!
  225. counterpoint sa-7(volume pot value)
  226. Tube amp equivalent to LDC?
  227. Pics of Foreplay Preamp
  228. Old Valco Amp Tube Problem
  229. Tube mixer design
  230. Battery bias?
  231. Phono amp for a beginner
  232. Low voltage Tube Schematic
  233. Audio Research MCP 33
  234. 6h30 dac output circuit wanted..anyone?
  235. 5Y3GT Question.
  236. Sovtek 6C45pi-E bias
  237. Cunningham/Radiotron RCA 58
  238. no connections at all!
  239. Thorsten's Chokeless Monkey 2a3
  240. No grid connection
  241. grid chokes
  242. Oh yeah, 7KY6
  243. Time to rock your world.
  244. Best way to connect 300B cathode
  245. #26 lineamp vers a 5687 which is best?
  246. Alu-foil electrostatic shield
  247. 6DJ8 cathode heater voltage question.
  248. All Tube Ccs.
  249. Slew Rate Limiting... continued.
  250. DC variacs?

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