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  1. Looking for tips on operating points for tubes in anode follower ...
  2. Transformer in the cathodes ??
  3. Fisher 800c static,crackle
  4. 19J6 replacement
  5. Newbie tube buffer kit
  6. Simple se parts, all needed?
  7. Any recommendations for tube for vari-mu compressor?
  8. AMC CVT 3030 Bias Procedure
  9. Anyone used a edcor cxpp100-ms-5k OT
  10. Noisy gain boost
  11. Troubleshooting hum issues with batteries?
  12. Rectifying Heater Supply
  13. tube heater over voltage!please help...
  14. rca 829b bias ? Audioromy 828
  15. 10k winding, 100k pot
  16. What is the definition of a 'good tube'?
  17. 3-stage DC-coupled Ampl
  18. 1946 Philco Tube Receiver
  19. A New Source for James Transformers
  20. Edcor Site Down? Gone? anyone know anything?
  21. Please suggest practical DIY uses for these BIG oil caps
  22. How to calculate DRD amps..
  23. PL-519 Tube - Tell me more please...
  24. Need ideas for amp with 2A3, One Electron UBT-3
  25. Favourites discrete brand for tube amp
  26. Pharmicia EPS500/400 Power supply - tube use
  27. Black Art Audio
  28. 12AX7/12BH7 Hammond Tube Preamp Project
  29. Dampen transformer endbells?
  30. Do I have DC on my AC line?
  31. GM-70 cathode feed SE amplifier
  32. Rogers cadet mk 2 newbie project experience required
  33. Mcintosh amps transformer rewinding, help needed please!
  34. Using an output tranny from a stereo for a single-ended amplifier ?
  35. 6336A Single Ended.
  36. UA 175 Urei 175
  37. Morgan Jones 5842 RIAA
  38. Question about current ratings of Hammond 300 series power transformers.
  39. Cathode Windings
  40. Phono stage for 12B4 amp [from previous thread]
  41. Looking for schematic of 26 WOT Preamp
  42. Transformer Lam Questions
  43. Schottky diode bias
  44. ACROSOUND direct-couple EL84 amplifier question
  45. RH807 CCS loaded
  46. Audio Note Kit 1 PSU question
  47. B&K 500 Tube Tester Calibration
  48. New kt88's or 6550
  49. Bias Supply resistors
  50. Incredible source for used transformers and parts!
  51. Reclaimed Hammond H100 PSU's
  52. Arc Vt-60 Cloned :-)
  53. First Time Pre Amp Build
  54. Tubelab SE 300B low level hum, help
  55. 845 - Progress so far
  56. Nube challange12AX7 to drive 6C4
  57. 7th harmonic distortion from PP pentodes depends on bias?
  58. West Output Transformers?
  59. Help me design my DAC/Line Preamp.
  60. Hybrid preamp tube problemHi,
  61. sweept tubes for simple Se recommendation?
  62. Building RH84 SE tube amp.
  63. Question - THD Measrement/Spectrum Analyzis
  64. What to do with TMC tube radio gear?
  65. Easy & Safe & Good sounding gainclone tube buffer
  66. Compactron (31AL10) Head-Scratcher
  67. What cable do you use from input socket to volume pot
  68. problem with 12AE6A buffer
  69. Parafeed dc blocking/coupling cap help
  70. Funky Looking 15DQ8s
  71. 12SN7 vs 7N7 bs 6SN7
  72. Correct Pins For EL84 Triode Strap
  73. Dimensions for anode cap sizes?
  74. Mains transformer help needed please
  75. Tone Stack Challenge
  76. Aikido 6SN7 input 5687 output
  77. FRANK"S 6SN7 preamp/linestage
  78. Pentode grid question...
  79. Hybrid fullwave rectifier
  80. 300B stereo amp project help
  81. EdcorEurope
  82. Can AC wires induce hum in output transformers?
  83. Would you use a 4 ohm tap with these speakers?
  84. Changing grid leak bias preamp to cathode bias
  85. 304tl se amp
  86. 5687 Srpp
  87. Dumb Question Brain is numb today!
  88. What a Deal!
  89. Roll Chart for 6DJ8/6922/7308 on Philco 9100 help
  90. MeiXing MC-805AA biasing
  91. whats a good diy tube preamp kit
  92. SimpleSE parts list
  93. Matched tubes or not matched
  94. wood gnomes really do live in france
  95. Pathos Classic one
  96. A Uk supplier of valve amp kits
  97. Detached getter?
  98. 12B4 Line Stage Amp
  99. How do I control volume on Dynaco ST-70?
  100. A few questions from a total novice.
  101. RCA preamp modification
  102. Bogen Challenger CH8 conversion...newb needs help!
  103. 6AU6A - Micropowered tube amp
  104. Yet another DHT filament supply
  105. where to find 5998 ?
  106. Mcintosh MA 2275 Schematic Required
  107. Help on sonic frontier sf line 1 preamp
  108. Voice of Music Reel-Reel schematic needed
  109. Old radio tubes
  110. Alpha Pots
  111. Bleeders values and ratings
  112. Tube audio circuit analysis
  113. Audio Research LS15 circuit and description
  114. OPT Trafo
  115. OPT test data?
  116. looking for the top 6080 amp schematics
  117. vu meter
  118. Walkthrough: Pioneer SM-83 Tube Amp Restoration
  119. First Amp Build....!
  120. Will This work?
  121. Simple SE hookup wiring
  122. building a lit up tube display
  123. Push-Pull 6CL5's
  124. 2A3 power adjustments by channel
  125. Dead 12ax7 gain stage - Help...
  126. Best 300B amp schematics
  127. Stuck on Standby
  128. Newbee wants to learn about tube amps, etc...
  129. Recent Ad on Craig's List
  130. Pitfalls to warmup delay in DC coupled multiple railed amps?
  131. jan 6832 sub miniature tube
  132. Anti-Triode SEPP, how to do best?
  133. Some Help with Feedback Please!
  134. Cary 300SEI, likely capacitor failure
  135. Ballast Tube Current Source
  136. Ray Lumley m100 schematic needed
  137. Feedback question
  138. CMRR from parallel heaters?
  139. bevois valley clone from eico hf-12 iron..
  140. 27/37/56/76 plate dissipation
  141. Bell 2420 Amplifier Schematic Needed...
  142. How It Works Video
  143. Have I got this right?
  144. any simple circuits I can add to a dac?
  145. neg feed back into v/slope stereo 2 pre-amp
  146. Using 12AX7 as input with feedback
  147. My first power supply
  148. Unknown tube similar to px4
  149. Anyone know of some ridiculously powerful triodes for class A useage?
  150. Bias Voltage
  151. Looking for tubes in Germany
  152. Substituting GU50 tubes for KT88
  153. Parts mined from an AKAI 1800L, what to do?
  154. Has anyone built this amp??????
  155. Another TubeLab SimpleSE Build
  156. Output transformers bandwidth/frequency range
  157. Which power supply would you use?
  158. Mullard Articles
  159. SimpleSE - motor run cap specs
  160. Can I reverse leads on an OT?
  161. 9 pin version of a 6SJ7?
  162. 6550 stock ?
  163. Fisher Tube Tuner Restoration Walkthrough
  164. Futterman H-3
  165. simple 6080/6as7 ppp/circlotron project
  166. My unbalanced preamp problem
  167. Gu50
  168. Any Simple CX310 SE schematics around?
  169. Two EI Power Transformers Orientation?
  170. Question on Hybrid Bridge using 5AR4
  171. Recommend a project for a n00b
  172. Help! el34 8pin to 7pin conversion
  173. Converting Yarland FV-34AIII to Triode and Zero NF
  174. 5U4GB PS question
  175. 6X8 Pentode/Triode Musings
  176. DDD mfg co High Voltage power supply?
  177. Mistake on OPT connections : have I damaged something ?
  178. Looking for Jim Morrison Siren Song preamp schematic
  179. cap question....
  180. Ming Da MC368-B90
  181. single tube to drive 300ohm headphones
  182. Negative Feedback?
  183. Possible to convert an oscilloscope into a tube amp?
  184. "Junkbox" 2A5 SE
  185. Power supply testing
  186. Tubeamp power supply - LC question
  187. tube amp coupling cap - audiospace
  188. Radford pentode-triode LTP splitter
  189. Tube bias testers, your opinions, please.
  190. Just saw this and thought I'd pass it along. . .
  191. 6KG6-EL509-EL519 Schematics wanted
  192. Difference between SE output transformer and push-pull output transformers
  193. Sourcing OPTs in Australia
  194. Is there a LOCTAL equiv to a 6V6?
  195. 10m45s LTspice model
  196. What circuit and tube to be used
  197. experimental 6L6G / 6BG6G amp design brainstorm
  198. 29GK6 heater current?
  199. Bench PS: stacking DC supplies
  200. Mr Liung schematics
  201. Want to build tube amp
  202. Back to back transformers.
  203. Using Battery for 300v B+ ?
  204. Anyone recognice this RIAA?
  205. Power cord replacement
  206. Negative LTP CCS supply
  207. c-j pre amp blowing tubes?
  208. first amp build
  209. Tube Mic Preamp - which Edcor transformer?
  210. Scaling the SLCF for other voltage - help
  211. Question about Allied & Hammond Power Transformer Ratings
  212. Education
  213. Tubelab SE with a 6BX7 to drive 845s
  214. Bias Ground
  215. Suggestions for RIAA preamp?
  216. External Test Points
  217. b2spice model request
  218. 12aY 7 preamp out
  219. 3B7 Loctal DHT
  220. Aikido All in One line stage amp PCB
  221. SS power supply.
  222. 6AU6 pentodes
  223. Parafeed with NP electrolytic?
  224. Charlie K - RIP
  225. Need some advise with a hum problem
  226. What resistor should I use?
  227. IN18 nixies
  228. Tubelab SE build and power supply questions.
  229. Quality of S5's K-12G in proposed system
  230. Transformer volume control questions.
  231. Power transformer star ground
  232. Shielding and chassis
  233. Side project - d3a and 6c41c
  234. Cathode-heater leakage
  235. Bell 2122 volume drop off
  236. -500V Maida regulator inquiry
  237. 7591 is glowing RED
  238. Hum problem
  239. Need PS schematic for Musical Machine
  240. Polystyrene capacitor as coupling in output tube stages
  241. Help needed with 10M45S integration .
  242. Ultrasonic Cleaning??????
  243. The daunting world of tubes (where to start)
  244. help 124.3 vac
  245. Bat VK3i buzzing noise
  246. Audioromy FU13 (813) diagram and mods
  247. any complete schematic for 6ak5?
  248. Weird fuzz from Aikido Pre, HELP!
  249. Question about tube amplifier.
  250. 811a rating question

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