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  1. 6c33c-b & 6c33c-v
  2. would like a substitute for Sowter 3575-C
  3. My first tube project WIP
  4. Tube rectifiede +- supply...
  5. the buzzing from amplifiers
  6. MC prepre with submini tubes
  7. 12AU7 Preamp build
  8. Bias/ Plate dissipation question
  9. Has anyone screen driven an EL84?
  10. tube pre amp for phone stage
  11. 6080 se cathode follower
  12. Amplifier suggestions for EPA OPT please
  13. Which tube? How much power can it produce?
  14. Graaf GM20 mods - help!
  15. xpp amplifier question
  16. 520v in PP UL...?
  17. New ST-70 blowing 3 amp slow blow fuse
  18. Was There a Heathkit W-1M or WM?
  19. 8ohm speakers 4ohm tap
  20. Upgrading the Conrad Johnson Premier Fourteen preamp
  21. Noob's first build !!!!
  22. 6sf5gt ??
  23. Measuring technics practical, the allaround reference method?
  24. 2A3 or KT88 ?
  25. What to build with these tubes?
  26. line output transformer help
  27. 6L6GC Options and Flavors
  28. Chinese Buffer Amp, Useful?
  29. 6C33C SE Amp - Ideas on refinement?
  30. 6BM8 Equivalent
  31. Newbie wants to rebuild a Stromberg Carlson ASR-433
  32. RH84 questions
  33. VTL Manley 807 push pull ultra linear
  34. Seeking Pentode-Triode with a 12AX7 half...
  35. Modern tube amplifier designs?
  36. 6n6p transformer output impedance
  37. 814 triode curves
  38. Bias Question
  39. Building a variac
  40. Is my 300B tube dead?
  41. One channel quiet - any bright ideas?
  42. Saw them coming (stupid prices on ebay)
  43. EL36/6CM5 pp design critique
  44. Driving Raven R2 with tubes
  45. Does Anyone Know What This Is?
  46. Need help with tubes problem...
  47. 6V6GT push pull NFB resistor value
  48. Power cord for single ended triode
  49. Virtual chokes
  50. 12AU7 based preamp hums when output cable is touched!
  51. Possible Test equipment find.
  52. 6ak5-45
  53. Using coax for signal wiring?
  54. Chassis Plate Finish
  55. Schade84
  56. Fisher 800c selenium rectifier pictures
  57. Bass amp from spare parts
  58. Looking for tips on operating points for tubes in anode follower ...
  59. Transformer in the cathodes ??
  60. Fisher 800c static,crackle
  61. 19J6 replacement
  62. Newbie tube buffer kit
  63. Simple se parts, all needed?
  64. Any recommendations for tube for vari-mu compressor?
  65. AMC CVT 3030 Bias Procedure
  66. Cascading volumes on a 5C3 amp
  67. Anyone used a edcor cxpp100-ms-5k OT
  68. Noisy gain boost
  69. Troubleshooting hum issues with batteries?
  70. Rectifying Heater Supply
  71. tube heater over voltage!please help...
  72. rca 829b bias ? Audioromy 828
  73. 10k winding, 100k pot
  74. What is the definition of a 'good tube'?
  75. 3-stage DC-coupled Ampl
  76. 1946 Philco Tube Receiver
  77. A New Source for James Transformers
  78. Edcor Site Down? Gone? anyone know anything?
  79. Please suggest practical DIY uses for these BIG oil caps
  80. How to calculate DRD amps..
  81. PL-519 Tube - Tell me more please...
  82. Need ideas for amp with 2A3, One Electron UBT-3
  83. Favourites discrete brand for tube amp
  84. Pharmicia EPS500/400 Power supply - tube use
  85. Black Art Audio
  86. 12AX7/12BH7 Hammond Tube Preamp Project
  87. Dampen transformer endbells?
  88. Do I have DC on my AC line?
  89. GM-70 cathode feed SE amplifier
  90. Rogers cadet mk 2 newbie project experience required
  91. Mcintosh amps transformer rewinding, help needed please!
  92. Using an output tranny from a stereo for a single-ended amplifier ?
  93. 6336A Single Ended.
  94. UA 175 Urei 175
  95. Morgan Jones 5842 RIAA
  96. Question about current ratings of Hammond 300 series power transformers.
  97. Cathode Windings
  98. Phono stage for 12B4 amp [from previous thread]
  99. Looking for schematic of 26 WOT Preamp
  100. Transformer Lam Questions
  101. Schottky diode bias
  102. ACROSOUND direct-couple EL84 amplifier question
  103. RH807 CCS loaded
  104. Audio Note Kit 1 PSU question
  105. B&K 500 Tube Tester Calibration
  106. New kt88's or 6550
  107. Bias Supply resistors
  108. Incredible source for used transformers and parts!
  109. Reclaimed Hammond H100 PSU's
  110. Arc Vt-60 Cloned :-)
  111. First Time Pre Amp Build
  112. Tubelab SE 300B low level hum, help
  113. 845 - Progress so far
  114. Nube challange12AX7 to drive 6C4
  115. 7th harmonic distortion from PP pentodes depends on bias?
  116. West Output Transformers?
  117. Help me design my DAC/Line Preamp.
  118. Hybrid preamp tube problemHi,
  119. sweept tubes for simple Se recommendation?
  120. Building RH84 SE tube amp.
  121. Question - THD Measrement/Spectrum Analyzis
  122. What to do with TMC tube radio gear?
  123. Easy & Safe & Good sounding gainclone tube buffer
  124. Compactron (31AL10) Head-Scratcher
  125. blackfacing a twin
  126. What cable do you use from input socket to volume pot
  127. problem with 12AE6A buffer
  128. Adding a master volume to a Fender 5C3 Deluxe
  129. Parafeed dc blocking/coupling cap help
  130. Funky Looking 15DQ8s
  131. 12SN7 vs 7N7 bs 6SN7
  132. Correct Pins For EL84 Triode Strap
  133. Dimensions for anode cap sizes?
  134. Mains transformer help needed please
  135. Tone Stack Challenge
  136. Aikido 6SN7 input 5687 output
  137. FRANK"S 6SN7 preamp/linestage
  138. Pentode grid question...
  139. Channel Switching
  140. Hybrid fullwave rectifier
  141. 300B stereo amp project help
  142. Another Bogen CHB 100 Conversion
  143. EdcorEurope
  144. Can AC wires induce hum in output transformers?
  145. Would you use a 4 ohm tap with these speakers?
  146. Changing grid leak bias preamp to cathode bias
  147. 304tl se amp
  148. 5687 Srpp
  149. Dumb Question Brain is numb today!
  150. What a Deal!
  151. Electrons on Parade
  152. Roll Chart for 6DJ8/6922/7308 on Philco 9100 help
  153. MeiXing MC-805AA biasing
  154. whats a good diy tube preamp kit
  155. Electrons on Parade
  156. SimpleSE parts list
  157. Matched tubes or not matched
  158. wood gnomes really do live in france
  159. Pathos Classic one
  160. A Uk supplier of valve amp kits
  161. Detached getter?
  162. 12B4 Line Stage Amp
  163. How do I control volume on Dynaco ST-70?
  164. A few questions from a total novice.
  165. RCA preamp modification
  166. Bogen Challenger CH8 conversion...newb needs help!
  167. 6AU6A - Micropowered tube amp
  168. Yet another DHT filament supply
  169. where to find 5998 ?
  170. Mcintosh MA 2275 Schematic Required
  171. Help on sonic frontier sf line 1 preamp
  172. Voice of Music Reel-Reel schematic needed
  173. Old radio tubes
  174. 6KN6-PP-guitar slave
  175. Alpha Pots
  176. Bleeders values and ratings
  177. Tube audio circuit analysis
  178. Audio Research LS15 circuit and description
  179. OPT Trafo
  180. OPT test data?
  181. looking for the top 6080 amp schematics
  182. vu meter
  183. Walkthrough: Pioneer SM-83 Tube Amp Restoration
  184. First Amp Build....!
  185. Will This work?
  186. Simple SE hookup wiring
  187. building a lit up tube display
  188. Push-Pull 6CL5's
  189. 2A3 power adjustments by channel
  190. Dead 12ax7 gain stage - Help...
  191. Best 300B amp schematics
  192. Stuck on Standby
  193. Newbee wants to learn about tube amps, etc...
  194. Recent Ad on Craig's List
  195. Pitfalls to warmup delay in DC coupled multiple railed amps?
  196. jan 6832 sub miniature tube
  197. Anti-Triode SEPP, how to do best?
  198. Some Help with Feedback Please!
  199. Cary 300SEI, likely capacitor failure
  200. Ballast Tube Current Source
  201. Ray Lumley m100 schematic needed
  202. Feedback question
  203. CMRR from parallel heaters?
  204. bevois valley clone from eico hf-12 iron..
  205. 27/37/56/76 plate dissipation
  206. Bell 2420 Amplifier Schematic Needed...
  207. How It Works Video
  208. Quad II build for guitar
  209. Have I got this right?
  210. any simple circuits I can add to a dac?
  211. neg feed back into v/slope stereo 2 pre-amp
  212. Using 12AX7 as input with feedback
  213. My first power supply
  214. Unknown tube similar to px4
  215. Anyone know of some ridiculously powerful triodes for class A useage?
  216. Bias Voltage
  217. Looking for tubes in Germany
  218. Substituting GU50 tubes for KT88
  219. Parts mined from an AKAI 1800L, what to do?
  220. Has anyone built this amp??????
  221. Another TubeLab SimpleSE Build
  222. Output transformers bandwidth/frequency range
  223. 6g6 preamp B+ at 400+????
  224. Which power supply would you use?
  225. Mullard Articles
  226. SimpleSE - motor run cap specs
  227. Can I reverse leads on an OT?
  228. 9 pin version of a 6SJ7?
  229. 6550 stock ?
  230. Fisher Tube Tuner Restoration Walkthrough
  231. Futterman H-3
  232. simple 6080/6as7 ppp/circlotron project
  233. My unbalanced preamp problem
  234. Gu50
  235. Any Simple CX310 SE schematics around?
  236. Peavey "Super Festival" VTA-400 - upgrading to 400W?
  237. Two EI Power Transformers Orientation?
  238. Question on Hybrid Bridge using 5AR4
  239. Recommend a project for a n00b
  240. Help! el34 8pin to 7pin conversion
  241. Converting Yarland FV-34AIII to Triode and Zero NF
  242. 5U4GB PS question
  243. 6X8 Pentode/Triode Musings
  244. DDD mfg co High Voltage power supply?
  245. Mistake on OPT connections : have I damaged something ?
  246. Looking for Jim Morrison Siren Song preamp schematic
  247. cap question....
  248. Ming Da MC368-B90
  249. single tube to drive 300ohm headphones
  250. Negative Feedback?

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