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  1. 211/845 tubes in a 805 based amp ?
  2. Grid leak bias, how does it work?
  3. Melos Sha Gold Reference
  4. Tube Amp for MTM
  5. Dynaco ST-70 Series III
  6. #27 + 6N8S Mu-Follower: Vhk Max Question
  7. Tube Mic preamp with compressor - any ideas?
  8. Counterpoint Sa-5000 and Klimo Kent - needed service manuals
  9. Drawing loadline using interstage / choosing interstage
  10. My New Iron for Single Ended 2a3
  11. GU-50 push pull amplifier
  12. 12SL7GT vs 12SN7GT
  13. DIY power amp and speakers
  14. KT88 SE
  15. Building a 6bq5 set amp
  16. OPT DC question
  17. Suitable speakers for a Leak Stereo 20
  18. Need advice on tube record player power jack.
  19. 12a_7 or 6SN7 phono preamp suggestions
  20. ECC99 as input stage for 300B?
  21. Drawbacks to over-speccing filament trannies?
  22. Thoughts on Western Electric amp redesign
  23. Adding choke to a power supply
  24. Broskie unbalancer and Aikido Help
  25. Mounting output tran and filter choke together
  26. Capacitors for tube amp rebuild
  27. Diving in, few questions
  28. SET Current Drop- Lack of Power, Saturation or Headroom?
  29. Power tubes: which is the maximum wire lenght for the cathode resistor to ground?
  30. Center Tapped Mains Transformer as Parafeed Plate Choke
  31. A tube newbie's review of the VTA ST-120
  32. Help Identifying Ebay Finds
  33. Led biasing or fixed biasing?
  34. diy vt-52 pushpull AMP
  35. Aikido Cathode Follower HUM Problem
  36. Superhet set HMV 438 Schematic help pls
  37. Output transformer for 100Hz and up
  38. Output transformers in series to simulate center-tap for push pull
  39. LED Biasing
  40. assembling a LITE LS-69 Hybrid Balance pre-amp
  41. Question about hifi power stage design
  42. Help with Magnavox EL84 Console restore
  43. Triode Loadline Simulator for dummies tutorial?
  44. Stromberg Carlson AP-54 schematic LTSPICE
  45. Resistor in series with S.E. O.T. ?
  46. Audio Valve Eklipse volume pot value?
  47. jensen vs mundorf
  48. 47 driving 300B questions
  49. 6T9 Amp
  50. Eico HF-32 PEC Loudness Circuit
  51. MV-100B tubes running extremely hot
  52. PCL 86 parafeed?
  53. Hammond 370FX
  54. Question about tube in Little Bear P8 - 6N5P
  55. Mini Pentode tube testing in Triode mode?
  56. Sencore Pr57 Iso Trans, Power Conditioner for amp?
  57. Is hot bias really sonic preferable versus cold bias ?
  58. Aikido Problem - B+ dropping too much
  59. Klemt Echolette M40 Schematic
  60. My S.E.T remade again - the DOS
  61. I need help to recognize these two vacuum tubes
  62. found a box...
  63. Advice on triode connecting a 'JZ6 tube
  64. Beard P100 pcb disassembly
  65. LM317 Heater 12ax7 ...not working
  66. 2A3 se amp power consumption
  67. "JJ" Tubes Vs other brands
  68. playing tube amps through a generator
  69. Need help with a preamp board I bought on eBay
  70. Question on Tube Rectifier..help please.
  71. 2A3 Hum Problems in SE (Please Help!)
  72. 240v to 110v for Sun Valley JB-300B
  73. Tubelab SPP Schematic
  74. SE output transformer
  75. single-ended.com annoyance
  76. A cheapo decent splitter
  77. Lightbulb Base Failure
  78. Madison Fielding Rcvr -- Filament Trick
  79. Converting from UL to Triode: Is this correct?
  80. white follower for driving mosfets.
  81. Distance between two audio input valves
  82. Series Caps on Power Supply
  83. Most expensive parts in DIY tube amp
  84. Filter Choke Selection
  85. 6072A as DAC outputstage
  86. adapting line level to suitcase record player
  87. Aikido Noval Stereo Questions
  88. 100K 2CH Volume pot recommendation
  89. Another Daft Idea
  90. Allen Model 75 user feedback needed
  91. My perfect 6550 PP amp :)
  92. Marantz 8b power transformer - open winding
  93. Chassis Grounding/ Comment on Chinese Schematic SRK-09
  94. Mini Carver Silver Seven?
  95. Using EL34 for allen wright's pp-2c
  96. Ampex 6973 mono blocks
  97. Antique Sound Lab AQ 2001 preamp issues
  98. Quad II hums
  99. Musical Fidelity XCAN V1
  100. Cathode Follower high power class B grid driver
  101. McIntosh MC 60 bias/voltage problem
  102. how to add a sub amp in parallel to S5-12G tube amplifier
  103. 5U4GB (rectifier) Arcing - What to think?
  104. I found these ripped pieces of paper..
  105. chassis grounding questions
  106. motorola ecl82 3 channel amp?
  107. Parallel Push Pull Circuit?
  108. Older valve amps chassis grounding
  109. Just about settled on building my first amp.
  110. 6L6 Triode AB Push/Pull Pout
  111. Schade and CFB exactly equivalent
  112. need some advice on updating this one
  113. Abdellah KT88 cathode follower addition?
  114. Where to buy vacuum tubes in Hong Kong city?
  115. Help needed on restoring a Bogen AP-200 amp
  116. homemade case for a homemade amplifier
  117. Two driver options for 300B push pull
  118. Heath Williamson type W-3M
  119. 6n3c 12ax7 amplifier
  120. HELP needed to design/build DRD 6C33C SET
  121. k12g left channel is out
  122. Yaqin MC-100B... anyone modded for tape loop?
  123. Simple Se build, Which tube?
  124. Re-thinking Hybrid!
  125. History of RIAA standards
  126. GU48/833A medium power SET
  127. Bass control causing hum + no bass from left channel
  128. bad PX4? dark blue glow
  129. Soft Start/bucking transformer For Marantz 9 Monoblocks
  130. Direct coupling with CCS
  131. 407A/B Preamp
  132. Bad 845 tube? (video link)
  133. Dynaco PAS 4
  134. OTL Amplifier in 1990 Glass Audio Magazine
  135. Volume drop when playing and hiss noise at turning off from one channel
  136. OPT in or near loudspeaker?
  137. Soft start for tube amplifier
  138. Transformer Sizing, etc
  139. 4P1L filament oscillation
  140. Toroidal power transformers in a tube amp
  141. No left channel output
  142. Conrad Johnson PV-10 squeal!
  143. Need expert help on EL34 SE tube amplifier.
  144. Coupling Caps
  145. 12pin/compactron tube socket
  146. Aikido audio problem w/ mains voltage fluctuations
  147. Radford STA-12
  148. New popping sound from my amp
  149. Line stage experiments with 6sn7
  150. simple SE headphone amp
  151. Aesthetix Metis Linestage
  152. Problem with Antique Sounds Pre Amp
  153. Output coupling capacitor question
  154. Screen Voltage present without B+
  155. jolida jd3000b preamp
  156. Need help on output transformer wiring alternatives
  157. Hi-End Push-Pull universal driver
  158. schematic for pentode 42 SE
  159. 6L6 / EL34 / EL84 / 6V6 frequency response curves?
  160. cheap and dirty supply
  161. EL84 SET red plating problem
  162. Using Aikido Topology to make Phono Preamp and Power Supply
  163. 5687 & OB2 as an excellent HT regulator
  164. 6S45P-E questions
  165. Extreme hybrid, a 100W with the vacuum tube sound
  166. Test Settings for a EL33/6AG6/6M6 on Eico 628 tester
  167. Chinook (Baby Amp II)
  168. Einstein Amplifier Input and Driver Section
  169. Tube System for Symphony/Jazz
  170. What is the purpose of C3 & C4?
  171. Yes, I'm the one who bought it...
  172. Capacitor Values
  173. Parks Audio / Triode ST35 kit?
  174. noob question.
  175. First stereo amp "Newbie" questions
  176. Newbie tries to design an amp
  177. Help - analysis on an output KT88 PP amp
  178. 12T10 triode connection - similar "real" triode to compare to?
  179. Recommendations for tube preamp (vinyl playback)
  180. Magnavox 8802 refurb boutique or standard parts.
  181. Allen model 75 organ amplifiers modifications
  182. Capacitance of rectifier tubes/valves near V=0??
  183. Volume/selector switch
  184. Auto Bias w/ LM317
  185. Volume drops and then comes back - anyone recognizes the sympthom?
  186. Cathode Follower and Volume Pot
  187. Dyna Mark III monoblocks. Driver boards and some questions on modding.
  188. switching a 5y3 for a 5y4?
  189. K-12M in Ultra Linear Mode Volume Issue
  190. SA 260 Pilot tube amplifier
  191. Standard Earmax Mod
  192. 470V using Bridge vs. 230V using Doubler
  193. Troublesome hybrid shengya a10..
  194. Heater Dropping Resistors
  195. Useing Mosfet in cathode leg of phase splitter
  196. Cheap (<100) Digital Tube Tester from ebay; experience/build/mod thread
  197. Cleaning old tube sockets with common household products
  198. Automatic Bias Kit
  199. Triode mode Pentode G2 resistor?
  200. Rectifier.
  201. Tube gainstage for newbie
  202. Source follower irf720 or DN2540
  203. Toroidal OPT
  204. Tesla E83CC - Have done research & still havingt trouble spotting fakes from real
  205. SE Power amp SG2 voltage
  206. Bias supply
  207. 7377 tube socket
  208. Power Transformer Impedance Matching
  209. zenith console amplifier (a stereo mono amplifier :) )
  210. Trutone model Teeco 610-D
  211. electromagnetic hum problem
  212. Heathkit A7 Volume.
  213. Ribbon Tube Amp
  214. Brimar ECC83 with red bottom
  215. Dynaco ST 35 Cheap Transformers source in EU
  216. Transformer input for P-P
  217. Help Identifying 12au7a From Hammond Organ
  218. K502 Bleeder and LED
  219. Cathode follower attenuates signal
  220. Anyone has a curve tracer to trace Western Electric 436A 448A 418A in triode mode ?
  221. Breadboards and tube voltages
  222. Dynaco 35 Power Supply
  223. Magic eye with tube em80-schematic or circuit
  224. Using 220v amp in country with 230v
  225. Magic eye with EM81 tube - made in China
  226. Improvement Suggestion Wanted: 6AS7 Hybrid PP Amp
  227. Tube amp instability in LTSpice (Claus Byrith 4-30)
  228. Current mfg triode's
  229. K12g upgrades
  230. Help Needed Identifying a Custom Tube Amp
  231. 6dj8 6922 driver question
  232. APPJ PA0901A Repair
  233. Output tube G1 resistors question
  234. Building Mullard PP ECL86 stereo
  235. 6SN7 Parallel Preamp Anyone?
  236. Advice on Finishing my K502 Build
  237. Another SSE build question
  238. Ferrite SE Outut XFMR for HF Tube Amp
  239. Question about grounding a 2-prong tube amp
  240. Grommes Mono Block
  241. EL84 triode mode @ 425V?
  242. Hybrid amp - Grounding Suggestions?
  243. Advises asked for, exquisite taste wanted!!
  244. need a good 2a3 socket... need advice
  245. Cathode feedback comments?
  246. Does different Rectifier Tubes change the tone????
  247. Another boring day
  248. el84 Tube amp
  249. Haddon PL151 Quad II input transformer
  250. Noob question

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