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

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