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  1. Advice on triode connecting a 'JZ6 tube
  2. Beard P100 pcb disassembly
  3. LM317 Heater 12ax7 ...not working
  4. 2A3 se amp power consumption
  5. "JJ" Tubes Vs other brands
  6. playing tube amps through a generator
  7. Need help with a preamp board I bought on eBay
  8. Question on Tube Rectifier..help please.
  9. 2A3 Hum Problems in SE (Please Help!)
  10. 240v to 110v for Sun Valley JB-300B
  11. Tubelab SPP Schematic
  12. SE output transformer
  13. single-ended.com annoyance
  14. A cheapo decent splitter
  15. Lightbulb Base Failure
  16. Madison Fielding Rcvr -- Filament Trick
  17. Converting from UL to Triode: Is this correct?
  18. white follower for driving mosfets.
  19. Distance between two audio input valves
  20. Series Caps on Power Supply
  21. Most expensive parts in DIY tube amp
  22. Filter Choke Selection
  23. 6072A as DAC outputstage
  24. adapting line level to suitcase record player
  25. Aikido Noval Stereo Questions
  26. 100K 2CH Volume pot recommendation
  27. Another Daft Idea
  28. Allen Model 75 user feedback needed
  29. My perfect 6550 PP amp :)
  30. Marantz 8b power transformer - open winding
  31. Chassis Grounding/ Comment on Chinese Schematic SRK-09
  32. Mini Carver Silver Seven?
  33. Using EL34 for allen wright's pp-2c
  34. Ampex 6973 mono blocks
  35. Antique Sound Lab AQ 2001 preamp issues
  36. Quad II hums
  37. Musical Fidelity XCAN V1
  38. Cathode Follower high power class B grid driver
  39. McIntosh MC 60 bias/voltage problem
  40. how to add a sub amp in parallel to S5-12G tube amplifier
  41. 5U4GB (rectifier) Arcing - What to think?
  42. I found these ripped pieces of paper..
  43. chassis grounding questions
  44. motorola ecl82 3 channel amp?
  45. Parallel Push Pull Circuit?
  46. Older valve amps chassis grounding
  47. Just about settled on building my first amp.
  48. 6L6 Triode AB Push/Pull Pout
  49. Schade and CFB exactly equivalent
  50. need some advice on updating this one
  51. Abdellah KT88 cathode follower addition?
  52. Where to buy vacuum tubes in Hong Kong city?
  53. Help needed on restoring a Bogen AP-200 amp
  54. homemade case for a homemade amplifier
  55. Two driver options for 300B push pull
  56. Heath Williamson type W-3M
  57. 6n3c 12ax7 amplifier
  58. HELP needed to design/build DRD 6C33C SET
  59. k12g left channel is out
  60. Yaqin MC-100B... anyone modded for tape loop?
  61. Simple Se build, Which tube?
  62. Re-thinking Hybrid!
  63. History of RIAA standards
  64. GU48/833A medium power SET
  65. Bass control causing hum + no bass from left channel
  66. bad PX4? dark blue glow
  67. Soft Start/bucking transformer For Marantz 9 Monoblocks
  68. Direct coupling with CCS
  69. 407A/B Preamp
  70. Bad 845 tube? (video link)
  71. Blues Jr. Mods
  72. Dynaco PAS 4
  73. OTL Amplifier in 1990 Glass Audio Magazine
  74. Volume drop when playing and hiss noise at turning off from one channel
  75. OPT in or near loudspeaker?
  76. Soft start for tube amplifier
  77. Transformer Sizing, etc
  78. 4P1L filament oscillation
  79. Toroidal power transformers in a tube amp
  80. No left channel output
  81. Conrar Johnson PV-10 squeal!
  82. Need expert help on EL34 SE tube amplifier.
  83. Coupling Caps
  84. 12pin/compactron tube socket
  85. Aikido audio problem w/ mains voltage fluctuations
  86. Radford STA-12
  87. New popping sound from my amp
  88. Line stage experiments with 6sn7
  89. simple SE headphone amp
  90. Aesthetix Metis Linestage
  91. Problem with Antique Sounds Pre Amp
  92. Output coupling capacitor question
  93. Screen Voltage present without B+
  94. jolida jd3000b preamp
  95. Need help on output transformer wiring alternatives
  96. Hi-End Push-Pull universal driver
  97. schematic for pentode 42 SE
  98. 6L6 / EL34 / EL84 / 6V6 frequency response curves?
  99. cheap and dirty supply
  100. EL84 SET red plating problem
  101. Using Aikido Topology to make Phono Preamp and Power Supply
  102. 5687 & OB2 as an excellent HT regulator
  103. 6S45P-E questions
  104. Extreme hybrid, a 100W with the vacuum tube sound
  105. Test Settings for a EL33/6AG6/6M6 on Eico 628 tester
  106. Chinook (Baby Amp II)
  107. Einstein Amplifier Input and Driver Section
  108. Tube System for Symphony/Jazz
  109. What is the purpose of C3 & C4?
  110. Yes, I'm the one who bought it...
  111. Capacitor Values
  112. Parks Audio / Triode ST35 kit?
  113. noob question.
  114. First stereo amp "Newbie" questions
  115. Newbie tries to design an amp
  116. Help - analysis on an output KT88 PP amp
  117. 12T10 triode connection - similar "real" triode to compare to?
  118. Recommendations for tube preamp (vinyl playback)
  119. Magnavox 8802 refurb boutique or standard parts.
  120. Allen model 75 organ amplifiers modifications
  121. Capacitance of rectifier tubes/valves near V=0??
  122. Volume/selector switch
  123. Auto Bias w/ LM317
  124. Volume drops and then comes back - anyone recognizes the sympthom?
  125. Cathode Follower and Volume Pot
  126. Dyna Mark III monoblocks. Driver boards and some questions on modding.
  127. switching a 5y3 for a 5y4?
  128. K-12M in Ultra Linear Mode Volume Issue
  129. SA 260 Pilot tube amplifier
  130. Standard Earmax Mod
  131. 470V using Bridge vs. 230V using Doubler
  132. Troublesome hybrid shengya a10..
  133. Heater Dropping Resistors
  134. Useing Mosfet in cathode leg of phase splitter
  135. Cheap (<100€) Digital Tube Tester from ebay; experience/build/mod thread
  136. Cleaning old tube sockets with common household products
  137. Automatic Bias Kit
  138. Triode mode Pentode G2 resistor?
  139. Rectifier.
  140. Tube gainstage for newbie
  141. Source follower irf720 or DN2540
  142. Toroidal OPT
  143. Tesla E83CC - Have done research & still havingt trouble spotting fakes from real
  144. Can Capacitor
  145. SE Power amp SG2 voltage
  146. Bias supply
  147. 7377 tube socket
  148. Power Transformer Impedance Matching
  149. zenith console amplifier (a stereo mono amplifier :) )
  150. Trutone model Teeco 610-D
  151. electromagnetic hum problem
  152. Heathkit A7 Volume.
  153. Ribbon Tube Amp
  154. Brimar ECC83 with red bottom
  155. Dynaco ST 35 Cheap Transformers source in EU
  156. Transformer input for P-P
  157. Help Identifying 12au7a From Hammond Organ
  158. K502 Bleeder and LED
  159. Cathode follower attenuates signal
  160. Anyone has a curve tracer to trace Western Electric 436A 448A 418A in triode mode ?
  161. Breadboards and tube voltages
  162. Dynaco 35 Power Supply
  163. Magic eye with tube em80-schematic or circuit
  164. Using 220v amp in country with 230v
  165. Magic eye with EM81 tube - made in China
  166. Improvement Suggestion Wanted: 6AS7 Hybrid PP Amp
  167. Tube amp instability in LTSpice (Claus Byrith 4-30)
  168. Current mfg triode's
  169. K12g upgrades
  170. Help Needed Identifying a Custom Tube Amp
  171. Capacitor Voltage rating
  172. 6dj8 6922 driver question
  173. APPJ PA0901A Repair
  174. Output tube G1 resistors question
  175. Building Mullard PP ECL86 stereo
  176. 6SN7 Parallel Preamp Anyone?
  177. Advice on Finishing my K502 Build
  178. Another SSE build question
  179. Ferrite SE Outut XFMR for HF Tube Amp
  180. Question about grounding a 2-prong tube amp
  181. Grommes Mono Block
  182. EL84 triode mode @ 425V?
  183. Hybrid amp - Grounding Suggestions?
  184. Advises asked for, exquisite taste wanted!!
  185. need a good 2a3 socket... need advice
  186. Cathode feedback comments?
  187. Does different Rectifier Tubes change the tone????
  188. Another boring day
  189. el84 Tube amp
  190. Haddon PL151 Quad II input transformer
  191. Noob question
  192. Futterman H3 Set Up
  193. Good tube amp for bass
  194. Any tube guys here use a MiniDSP
  195. Should Output Transformers be replaced
  196. Quad II questions
  197. MY OTL Tim Mellow-ESL 63 PROJECT
  198. Zobel for REDD47 w/ HA-100 Inpu
  199. Pentode P-P - cathode biasing for A and AB
  200. Why a Headphone Amp?
  201. How little B+ ripple do I really need?
  202. Need good EF86 based RIAA preamp.
  203. Marshall 9005 modification
  204. Which Tube amplifier should I build first?
  205. Sound Practices Magazines, Complete Set 98% perfect
  206. 6L6GC in Push Pull Class A - how much power out?
  207. ECC83 DC Heater Supply - without CT
  208. PPP EL84 monoblocs: i knew then what i know now...
  209. zener, voltage devider or 02A
  210. DHT heater current draw - how fast?
  211. Rca sa752
  212. Audio Research and Octal Pre's
  213. Scott 299D
  214. Unison Smart 845 big problem
  215. Need help with driver idea for 845 amp - have a few ideas
  216. Input impedance on cathode follower stage?
  217. Picked up a box of tubes for $5.. What tubes are usable?
  218. Need help on potentiometer.
  219. A Raven preamp (mk2) finished
  220. need help searching for ground
  221. Pre-amp transformer output
  222. Boyuu EL34 A9 Tube Amp
  223. Hybrid 15W, want feedback - work in-progress
  224. PT from scratch for 100 W Marshall 2555 Silver Jubilee - advices and comments ...
  225. SP12 and PH12 Pre and Phono from Vacuum Tube Audio
  226. Which tube amp for Telefunken-tlx3 loudspeakers?
  227. Burned up a tube - want to be sure I know why
  228. Output Transformer Windings in parallel
  229. New tube tech from Korg
  230. Got some PX4 valves from an old radiogram
  231. At the start: Triodedick´s Monobill Classic KT88 Monos
  232. Choose your harmonic distribution: which sound better?
  233. Recommended HT current limit for old stock power transformers
  234. preamp circuit
  235. Low impedance headphone amp
  236. "Earthing" in DIY tube preamps
  237. Tube amp help
  238. How to draw a dynamic load line for cathode bypass triode like 12AX7
  239. Common Grid design
  240. 6AW8-A
  241. Push pull amp without GNFB
  242. No filament voltage
  243. Selecting Component Values for Simple Current-Feedback Amplifier
  244. 4 Blown Soft Recovery Diodes...Are TV Damper Tubes more Reliable?
  245. Just got a nice EL84 based receiver
  246. Is there any good current Production 6550s?
  247. Building the Damn Good 300B
  248. convert trashed kolster k20 into tube amp?
  249. Junkbox Hero
  250. KT150 curves by Sofia

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