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  1. Morgan Jones 5842 RIAA
  2. Question about current ratings of Hammond 300 series power transformers.
  3. Cathode Windings
  4. Phono stage for 12B4 amp [from previous thread]
  5. Looking for schematic of 26 WOT Preamp
  6. Transformer Lam Questions
  7. Schottky diode bias
  8. ACROSOUND direct-couple EL84 amplifier question
  9. RH807 CCS loaded
  10. Audio Note Kit 1 PSU question
  11. B&K 500 Tube Tester Calibration
  12. New kt88's or 6550
  13. Bias Supply resistors
  14. Incredible source for used transformers and parts!
  15. Reclaimed Hammond H100 PSU's
  16. Arc Vt-60 Cloned :-)
  17. First Time Pre Amp Build
  18. Tubelab SE 300B low level hum, help
  19. 845 - Progress so far
  20. Nube challange12AX7 to drive 6C4
  21. 7th harmonic distortion from PP pentodes depends on bias?
  22. West Output Transformers?
  23. Help me design my DAC/Line Preamp.
  24. Hybrid preamp tube problemHi,
  25. sweept tubes for simple Se recommendation?
  26. Building RH84 SE tube amp.
  27. Question - THD Measrement/Spectrum Analyzis
  28. What to do with TMC tube radio gear?
  29. Easy & Safe & Good sounding gainclone tube buffer
  30. Compactron (31AL10) Head-Scratcher
  31. blackfacing a twin
  32. What cable do you use from input socket to volume pot
  33. problem with 12AE6A buffer
  34. Adding a master volume to a Fender 5C3 Deluxe
  35. Parafeed dc blocking/coupling cap help
  36. Funky Looking 15DQ8s
  37. 12SN7 vs 7N7 bs 6SN7
  38. Correct Pins For EL84 Triode Strap
  39. Dimensions for anode cap sizes?
  40. Mains transformer help needed please
  41. Tone Stack Challenge
  42. Aikido 6SN7 input 5687 output
  43. FRANK"S 6SN7 preamp/linestage
  44. Pentode grid question...
  45. Channel Switching
  46. Hybrid fullwave rectifier
  47. 300B stereo amp project help
  48. Another Bogen CHB 100 Conversion
  49. EdcorEurope
  50. Can AC wires induce hum in output transformers?
  51. Would you use a 4 ohm tap with these speakers?
  52. Changing grid leak bias preamp to cathode bias
  53. 304tl se amp
  54. 5687 Srpp
  55. Dumb Question Brain is numb today!
  56. What a Deal!
  57. Electrons on Parade
  58. Roll Chart for 6DJ8/6922/7308 on Philco 9100 help
  59. MeiXing MC-805AA biasing
  60. whats a good diy tube preamp kit
  61. Electrons on Parade
  62. SimpleSE parts list
  63. Matched tubes or not matched
  64. wood gnomes really do live in france
  65. Pathos Classic one
  66. A Uk supplier of valve amp kits
  67. Detached getter?
  68. 12B4 Line Stage Amp
  69. How do I control volume on Dynaco ST-70?
  70. A few questions from a total novice.
  71. RCA preamp modification
  72. Bogen Challenger CH8 conversion...newb needs help!
  73. 6AU6A - Micropowered tube amp
  74. Yet another DHT filament supply
  75. where to find 5998 ?
  76. Mcintosh MA 2275 Schematic Required
  77. Help on sonic frontier sf line 1 preamp
  78. Voice of Music Reel-Reel schematic needed
  79. Old radio tubes
  80. 6KN6-PP-guitar slave
  81. Alpha Pots
  82. Bleeders values and ratings
  83. Tube audio circuit analysis
  84. Audio Research LS15 circuit and description
  85. OPT Trafo
  86. OPT test data?
  87. looking for the top 6080 amp schematics
  88. vu meter
  89. Walkthrough: Pioneer SM-83 Tube Amp Restoration
  90. First Amp Build....!
  91. Will This work?
  92. Simple SE hookup wiring
  93. building a lit up tube display
  94. Push-Pull 6CL5's
  95. 2A3 power adjustments by channel
  96. Dead 12ax7 gain stage - Help...
  97. Best 300B amp schematics
  98. Stuck on Standby
  99. Newbee wants to learn about tube amps, etc...
  100. Recent Ad on Craig's List
  101. Pitfalls to warmup delay in DC coupled multiple railed amps?
  102. jan 6832 sub miniature tube
  103. Anti-Triode SEPP, how to do best?
  104. Some Help with Feedback Please!
  105. Cary 300SEI, likely capacitor failure
  106. Ballast Tube Current Source
  107. Ray Lumley m100 schematic needed
  108. Feedback question
  109. CMRR from parallel heaters?
  110. bevois valley clone from eico hf-12 iron..
  111. 27/37/56/76 plate dissipation
  112. Bell 2420 Amplifier Schematic Needed...
  113. How It Works Video
  114. Quad II build for guitar
  115. Have I got this right?
  116. any simple circuits I can add to a dac?
  117. neg feed back into v/slope stereo 2 pre-amp
  118. Using 12AX7 as input with feedback
  119. My first power supply
  120. Unknown tube similar to px4
  121. Anyone know of some ridiculously powerful triodes for class A useage?
  122. Bias Voltage
  123. Looking for tubes in Germany
  124. Substituting GU50 tubes for KT88
  125. Parts mined from an AKAI 1800L, what to do?
  126. Has anyone built this amp??????
  127. Another TubeLab SimpleSE Build
  128. Output transformers bandwidth/frequency range
  129. 6g6 preamp B+ at 400+????
  130. Which power supply would you use?
  131. Mullard Articles
  132. SimpleSE - motor run cap specs
  133. Can I reverse leads on an OT?
  134. 9 pin version of a 6SJ7?
  135. 6550 stock ?
  136. Fisher Tube Tuner Restoration Walkthrough
  137. Futterman H-3
  138. simple 6080/6as7 ppp/circlotron project
  139. My unbalanced preamp problem
  140. Gu50
  141. Any Simple CX310 SE schematics around?
  142. Peavey "Super Festival" VTA-400 - upgrading to 400W?
  143. Two EI Power Transformers Orientation?
  144. Question on Hybrid Bridge using 5AR4
  145. Recommend a project for a n00b
  146. Help! el34 8pin to 7pin conversion
  147. Converting Yarland FV-34AIII to Triode and Zero NF
  148. 5U4GB PS question
  149. 6X8 Pentode/Triode Musings
  150. DDD mfg co High Voltage power supply?
  151. Mistake on OPT connections : have I damaged something ?
  152. Looking for Jim Morrison Siren Song preamp schematic
  153. cap question....
  154. Ming Da MC368-B90
  155. single tube to drive 300ohm headphones
  156. Negative Feedback?
  157. Capacitor voltage ratings
  158. Possible to convert an oscilloscope into a tube amp?
  159. "Junkbox" 2A5 SE
  160. Power supply testing
  161. Tubeamp power supply - LC question
  162. tube amp coupling cap - audiospace
  163. Radford pentode-triode LTP splitter
  164. Tube bias testers, your opinions, please.
  165. Just saw this and thought I'd pass it along. . .
  166. 6KG6-EL509-EL519 Schematics wanted
  167. Difference between SE output transformer and push-pull output transformers
  168. Sourcing OPTs in Australia
  169. Is there a LOCTAL equiv to a 6V6?
  170. 10m45s LTspice model
  171. What circuit and tube to be used
  172. experimental 6L6G / 6BG6G amp design brainstorm
  173. 29GK6 heater current?
  174. Bench PS: stacking DC supplies
  175. Mr Liung schematics
  176. Want to build tube amp
  177. Runaway bias on Hot Rod Deville
  178. Back to back transformers.
  179. Using Battery for 300v B+ ?
  180. Anyone recognice this RIAA?
  181. Power cord replacement
  182. Negative LTP CCS supply
  183. c-j pre amp blowing tubes?
  184. first amp build
  185. Tube Mic Preamp - which Edcor transformer?
  186. Scaling the SLCF for other voltage - help
  187. Question about Allied & Hammond Power Transformer Ratings
  188. Education
  189. Tubelab SE with a 6BX7 to drive 845s
  190. Bias Ground
  191. Suggestions for RIAA preamp?
  192. External Test Points
  193. b2spice model request
  194. 12aY 7 preamp out
  195. 3B7 Loctal DHT
  196. Aikido All in One line stage amp PCB
  197. SS power supply.
  198. 6AU6 pentodes
  199. Parafeed with NP electrolytic?
  200. Charlie K - RIP
  201. Need some advise with a hum problem
  202. What resistor should I use?
  203. IN18 nixies
  204. Tubelab SE build and power supply questions.
  205. Quality of S5's K-12G in proposed system
  206. Gibson EH 150 restoration
  207. Transformer volume control questions.
  208. Power transformer star ground
  209. Shielding and chassis
  210. Side project - d3a and 6c41c
  211. Cathode-heater leakage
  212. Bell 2122 volume drop off
  213. -500V Maida regulator inquiry
  214. 7591 is glowing RED
  215. Hum problem
  216. Need PS schematic for Musical Machine
  217. Polystyrene capacitor as coupling in output tube stages
  218. Help needed with 10M45S integration .
  219. Ultrasonic Cleaning??????
  220. The daunting world of tubes (where to start)
  221. help 124.3 vac
  222. Bat VK3i buzzing noise
  223. Audioromy FU13 (813) diagram and mods
  224. any complete schematic for 6ak5?
  225. Weird fuzz from Aikido Pre, HELP!
  226. Question about tube amplifier.
  227. 811a rating question
  228. Anode chokes DIY?
  229. EI laminations in Europe
  230. Needed: transformer core materials cobalt nickel
  231. Anybody from Italy - please help
  232. Bogen AP35 amp problem
  233. Question about a VR screen supply
  234. DIY Amp Contest in Japan
  235. Hot 5AR4/GZ34 arcing on powerup surge?
  236. Rh84 Ptx
  237. Buzz. Grounding-related?
  238. 50/60Hz Hum - Your Expert Opinion Please
  239. Static Gm test
  240. High Voltage negative regulators
  241. where do i find old tube car radio schematics?
  242. Burned Up Transformer in HiFi 6p3p Tube Amplifier
  243. capacitors
  244. Wire Types
  245. Weird EH12AY7 Problem
  246. Pot and knob compatability
  247. ECC8100 and ECC2000
  248. DHT experts, i need your help
  249. transformers
  250. Vetruvio class-A

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