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  1. Tube rectifiede +- supply...
  2. the buzzing from amplifiers
  3. MC prepre with submini tubes
  4. 12AU7 Preamp build
  5. Bias/ Plate dissipation question
  6. Has anyone screen driven an EL84?
  7. tube pre amp for phone stage
  8. 6080 se cathode follower
  9. Amplifier suggestions for EPA OPT please
  10. Which tube? How much power can it produce?
  11. Graaf GM20 mods - help!
  12. xpp amplifier question
  13. 520v in PP UL...?
  14. New ST-70 blowing 3 amp slow blow fuse
  15. Was There a Heathkit W-1M or WM?
  16. 8ohm speakers 4ohm tap
  17. Upgrading the Conrad Johnson Premier Fourteen preamp
  18. Noob's first build !!!!
  19. 6sf5gt ??
  20. Measuring technics practical, the allaround reference method?
  21. 2A3 or KT88 ?
  22. What to build with these tubes?
  23. line output transformer help
  24. 6L6GC Options and Flavors
  25. Chinese Buffer Amp, Useful?
  26. 6C33C SE Amp - Ideas on refinement?
  27. 6BM8 Equivalent
  28. Newbie wants to rebuild a Stromberg Carlson ASR-433
  29. RH84 questions
  30. VTL Manley 807 push pull ultra linear
  31. Seeking Pentode-Triode with a 12AX7 half...
  32. Modern tube amplifier designs?
  33. 6n6p transformer output impedance
  34. 814 triode curves
  35. Bias Question
  36. Building a variac
  37. Is my 300B tube dead?
  38. One channel quiet - any bright ideas?
  39. Saw them coming (stupid prices on ebay)
  40. EL36/6CM5 pp design critique
  41. Driving Raven R2 with tubes
  42. Does Anyone Know What This Is?
  43. Need help with tubes problem...
  44. 6V6GT push pull NFB resistor value
  45. Power cord for single ended triode
  46. Virtual chokes
  47. 12AU7 based preamp hums when output cable is touched!
  48. Possible Test equipment find.
  49. 6ak5-45
  50. Using coax for signal wiring?
  51. Chassis Plate Finish
  52. Schade84
  53. Fisher 800c selenium rectifier pictures
  54. Bass amp from spare parts
  55. Looking for tips on operating points for tubes in anode follower ...
  56. Transformer in the cathodes ??
  57. Fisher 800c static,crackle
  58. 19J6 replacement
  59. Newbie tube buffer kit
  60. Simple se parts, all needed?
  61. Any recommendations for tube for vari-mu compressor?
  62. AMC CVT 3030 Bias Procedure
  63. Cascading volumes on a 5C3 amp
  64. Anyone used a edcor cxpp100-ms-5k OT
  65. Noisy gain boost
  66. Troubleshooting hum issues with batteries?
  67. Rectifying Heater Supply
  68. tube heater over voltage!please help...
  69. rca 829b bias ? Audioromy 828
  70. 10k winding, 100k pot
  71. What is the definition of a 'good tube'?
  72. 3-stage DC-coupled Ampl
  73. 1946 Philco Tube Receiver
  74. A New Source for James Transformers
  75. Edcor Site Down? Gone? anyone know anything?
  76. Please suggest practical DIY uses for these BIG oil caps
  77. How to calculate DRD amps..
  78. PL-519 Tube - Tell me more please...
  79. Need ideas for amp with 2A3, One Electron UBT-3
  80. Favourites discrete brand for tube amp
  81. Pharmicia EPS500/400 Power supply - tube use
  82. Black Art Audio
  83. 12AX7/12BH7 Hammond Tube Preamp Project
  84. Dampen transformer endbells?
  85. Do I have DC on my AC line?
  86. GM-70 cathode feed SE amplifier
  87. Rogers cadet mk 2 newbie project experience required
  88. Mcintosh amps transformer rewinding, help needed please!
  89. Using an output tranny from a stereo for a single-ended amplifier ?
  90. 6336A Single Ended.
  91. UA 175 Urei 175
  92. Morgan Jones 5842 RIAA
  93. Question about current ratings of Hammond 300 series power transformers.
  94. Cathode Windings
  95. Phono stage for 12B4 amp [from previous thread]
  96. Looking for schematic of 26 WOT Preamp
  97. Transformer Lam Questions
  98. Schottky diode bias
  99. ACROSOUND direct-couple EL84 amplifier question
  100. RH807 CCS loaded
  101. Audio Note Kit 1 PSU question
  102. B&K 500 Tube Tester Calibration
  103. New kt88's or 6550
  104. Bias Supply resistors
  105. Incredible source for used transformers and parts!
  106. Reclaimed Hammond H100 PSU's
  107. Arc Vt-60 Cloned :-)
  108. First Time Pre Amp Build
  109. Tubelab SE 300B low level hum, help
  110. 845 - Progress so far
  111. Nube challange12AX7 to drive 6C4
  112. 7th harmonic distortion from PP pentodes depends on bias?
  113. West Output Transformers?
  114. Help me design my DAC/Line Preamp.
  115. Hybrid preamp tube problemHi,
  116. sweept tubes for simple Se recommendation?
  117. Building RH84 SE tube amp.
  118. Question - THD Measrement/Spectrum Analyzis
  119. What to do with TMC tube radio gear?
  120. Easy & Safe & Good sounding gainclone tube buffer
  121. Compactron (31AL10) Head-Scratcher
  122. blackfacing a twin
  123. What cable do you use from input socket to volume pot
  124. problem with 12AE6A buffer
  125. Adding a master volume to a Fender 5C3 Deluxe
  126. Parafeed dc blocking/coupling cap help
  127. Funky Looking 15DQ8s
  128. 12SN7 vs 7N7 bs 6SN7
  129. Correct Pins For EL84 Triode Strap
  130. Dimensions for anode cap sizes?
  131. Mains transformer help needed please
  132. Tone Stack Challenge
  133. Aikido 6SN7 input 5687 output
  134. FRANK"S 6SN7 preamp/linestage
  135. Pentode grid question...
  136. Channel Switching
  137. Hybrid fullwave rectifier
  138. 300B stereo amp project help
  139. Another Bogen CHB 100 Conversion
  140. EdcorEurope
  141. Can AC wires induce hum in output transformers?
  142. Would you use a 4 ohm tap with these speakers?
  143. Changing grid leak bias preamp to cathode bias
  144. 304tl se amp
  145. 5687 Srpp
  146. Dumb Question Brain is numb today!
  147. What a Deal!
  148. Electrons on Parade
  149. Roll Chart for 6DJ8/6922/7308 on Philco 9100 help
  150. MeiXing MC-805AA biasing
  151. whats a good diy tube preamp kit
  152. Electrons on Parade
  153. SimpleSE parts list
  154. Matched tubes or not matched
  155. wood gnomes really do live in france
  156. Pathos Classic one
  157. A Uk supplier of valve amp kits
  158. Detached getter?
  159. 12B4 Line Stage Amp
  160. How do I control volume on Dynaco ST-70?
  161. A few questions from a total novice.
  162. RCA preamp modification
  163. Bogen Challenger CH8 conversion...newb needs help!
  164. 6AU6A - Micropowered tube amp
  165. Yet another DHT filament supply
  166. where to find 5998 ?
  167. Mcintosh MA 2275 Schematic Required
  168. Help on sonic frontier sf line 1 preamp
  169. Voice of Music Reel-Reel schematic needed
  170. Old radio tubes
  171. 6KN6-PP-guitar slave
  172. Alpha Pots
  173. Bleeders values and ratings
  174. Tube audio circuit analysis
  175. Audio Research LS15 circuit and description
  176. OPT Trafo
  177. OPT test data?
  178. looking for the top 6080 amp schematics
  179. vu meter
  180. Walkthrough: Pioneer SM-83 Tube Amp Restoration
  181. First Amp Build....!
  182. Will This work?
  183. Simple SE hookup wiring
  184. building a lit up tube display
  185. Push-Pull 6CL5's
  186. 2A3 power adjustments by channel
  187. Dead 12ax7 gain stage - Help...
  188. Best 300B amp schematics
  189. Stuck on Standby
  190. Newbee wants to learn about tube amps, etc...
  191. Recent Ad on Craig's List
  192. Pitfalls to warmup delay in DC coupled multiple railed amps?
  193. jan 6832 sub miniature tube
  194. Anti-Triode SEPP, how to do best?
  195. Some Help with Feedback Please!
  196. Cary 300SEI, likely capacitor failure
  197. Ballast Tube Current Source
  198. Ray Lumley m100 schematic needed
  199. Feedback question
  200. CMRR from parallel heaters?
  201. bevois valley clone from eico hf-12 iron..
  202. 27/37/56/76 plate dissipation
  203. Bell 2420 Amplifier Schematic Needed...
  204. How It Works Video
  205. Quad II build for guitar
  206. Have I got this right?
  207. any simple circuits I can add to a dac?
  208. neg feed back into v/slope stereo 2 pre-amp
  209. Using 12AX7 as input with feedback
  210. My first power supply
  211. Unknown tube similar to px4
  212. Anyone know of some ridiculously powerful triodes for class A useage?
  213. Bias Voltage
  214. Looking for tubes in Germany
  215. Substituting GU50 tubes for KT88
  216. Parts mined from an AKAI 1800L, what to do?
  217. Has anyone built this amp??????
  218. Another TubeLab SimpleSE Build
  219. Output transformers bandwidth/frequency range
  220. 6g6 preamp B+ at 400+????
  221. Which power supply would you use?
  222. Mullard Articles
  223. SimpleSE - motor run cap specs
  224. Can I reverse leads on an OT?
  225. 9 pin version of a 6SJ7?
  226. 6550 stock ?
  227. Fisher Tube Tuner Restoration Walkthrough
  228. Futterman H-3
  229. simple 6080/6as7 ppp/circlotron project
  230. My unbalanced preamp problem
  231. Gu50
  232. Any Simple CX310 SE schematics around?
  233. Peavey "Super Festival" VTA-400 - upgrading to 400W?
  234. Two EI Power Transformers Orientation?
  235. Question on Hybrid Bridge using 5AR4
  236. Recommend a project for a n00b
  237. Help! el34 8pin to 7pin conversion
  238. Converting Yarland FV-34AIII to Triode and Zero NF
  239. 5U4GB PS question
  240. 6X8 Pentode/Triode Musings
  241. DDD mfg co High Voltage power supply?
  242. Mistake on OPT connections : have I damaged something ?
  243. Looking for Jim Morrison Siren Song preamp schematic
  244. cap question....
  245. Ming Da MC368-B90
  246. single tube to drive 300ohm headphones
  247. Negative Feedback?
  248. Capacitor voltage ratings
  249. Possible to convert an oscilloscope into a tube amp?
  250. "Junkbox" 2A5 SE

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