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  1. Pop, Pop, Pop, Pop, Pop
  2. what is this valve? and what is it for??
  3. Lazarus cascade basic preamp
  4. Seperate Power Supply Chassis and Grounding
  5. How To Solder Tips and Tricks
  6. Another CD player tube mod, TDA1541 with transformers and triode cathode followers
  7. PCL86 - Worth a try?
  8. Audio use 3D6/1299 ?
  9. How HOT should a LM317 get?
  10. KT88 amp questions
  11. Restoring a Motorola HS-1048A amp
  12. Please look at this schematic and tells me what have went wrong
  13. Lacking bass response after re-cap
  14. Generate a negative bias voltage?
  15. hammond 369ex instead of 269ex
  16. Recapped a pair of monoblocks
  17. Top Secret!
  18. Toggle or Rotary Switch for Phono Inputs
  19. Flexible tube (or SS) electronic XO
  20. LAVATORY - Lamp Valve Transistor Hybrid (will this work?)
  21. Transformer revers use question
  22. Fixed bias, cathode feedback?
  23. spudnik, spudMiG ?
  24. I need the KT120 base dimensions
  25. Need help with chassis layout.
  26. tube amp ID ?
  27. GU50 filaments voltage!
  28. Does anybody have an RCA RS171 Schematic
  29. Opinions wanted: Low Z SE power supplies
  30. DC heaters, best way to bias ?
  31. Ignition coil as SE OPT
  32. Opt color code identification (Onetics)
  33. Drawback to Larger Capacity Output Transformer Than Required?
  34. Send me some pictures of your amps
  35. leak stereo 60
  36. B2 Spice V5.0
  37. Mains Fuse and Switch Best Practice
  38. Identify these vintage tube amp rivets
  39. RCA ORTHOPHONIC LMI-32216A manual copy needed
  40. Question on strange 6l6 schematic symbols
  41. Resistor value?
  42. Paper / plastic hybrid capacitor
  43. ST70 chassis polishing
  44. Octal to RCA
  45. KT120 plate load for 150+watts
  46. Need a copy of Aikido 5687 manual pdf
  47. Nutshell Raven Headphone amp with balanced I/O
  48. Bartolucci: beware of him !!!
  49. Finding plate resistance
  50. Pleides Tube only headphone amp
  51. I think I know what I want (seasoned advice)
  52. CCS filament supply vs inductors for DHT
  53. Cap outer foil low impedance help...
  54. Distorted low end SE micro amp
  55. LM3886 + ECC82/12AU7
  56. My LCR phono with HUM....
  57. Winter 2A3 SET project.
  58. 6BQ5 pp with LM317 ccs
  59. maratz 7 clone
  60. Music Angel pre-amplifier - few modifications
  61. Transformer Questions (1st Amp Project)
  62. Morgan Jones and PS Bypass Caps
  63. Ruby Tuby at 24V?
  64. Budget Iron for Low-Power SET
  65. Output transformer mounting questions
  66. 3c24 preamp?
  67. Newb Q - JE Simple 2A3 as Monoblocks
  68. Vacuum tube amp design
  69. Counterpoint SA7.1 circuit question
  70. Variable Gain Control Topology
  71. Unknown amplifier, anyone recognice it?
  72. Harman Kardon "The Lute" A-220 - Repair manual?
  73. G2 input grid 6DQ6 push pull
  74. Schade SE 6550
  75. Heathkit aa-23 fix up
  76. 6SN7 Line Stage w/ Tone Controls
  77. Octal Heaven??
  78. how do i reach Chris the georgetown technician?
  79. mu follower bootstrap cap value
  80. POLL: The Legendary Williamson Amp Modified By SY
  81. 5Y3 PSU Question
  82. jolida 302b sweet sounding amp vs Audio Innovations 500
  83. MFA M120 any personal experience values and reviews?
  84. Scott 233D one channel bad - Next Project?
  85. Quickie GLA Tube Amp - whats the 1 ohm setting for?
  86. This Look Right?
  87. SIMPLE KIT with step by step instruction
  88. Ultra Simple PP ECC99?
  89. Heathkit Audio Analyzer
  90. The Best Valve Amp Design In Modern Time: Poll Candidates
  91. Current Requirements for Power Tubes
  92. Thermionic generator (Triode) appears to be real this time...
  93. Choosing Tube + OPT for preamp
  94. My first preamp with tubes
  95. Another New Guy Starting With %@&?~ Chinese PCB
  96. Question about output transformers.
  97. NEETS & Kirchhoff , I'm stuck
  98. Reviving a late 50's el84-based hifi
  99. Need a 7K a-a
  100. Tube ID
  101. Anyone know what these are?
  102. Let's Talk About Grounding
  103. Tube Pre Amp DIY Schematic
  104. Rectifier choice
  105. power transformer fo single tube ecl82 amplifier
  106. Today's Version of The Williamson Amp
  107. what's wrong with my calculations?
  108. Phono stage design considerations part 1: choosing 1st stage tube
  109. Can anyone suggest a practical use for this gauge on a tube amp
  110. Completed my 829 PPP w/ pmillet's driver pcb's.
  111. adding input transformer to Sony sra-2 tube preamp
  112. 6P45S 50W mono block tube amplifier
  113. Is it possible to drive 4xKT88PP with an AC coupled LTP PI?
  114. curious answer from CommonSense Audio
  115. Local Feedback for Push Pull Pentode
  116. Hickok Tv-7D/U A Setting not working
  117. Exotic interstage transformers
  118. DAC & Tube Preamp, Elevated Heater Question
  119. This Schematic Sounds Great
  120. Most Exotic MM phono preamplifier
  121. Fast track or How to utilize two 3-hole chassis for 20W+ monoblocks
  122. Strange noises on my Aikido power on
  123. lost capacitance
  124. Best SE KT66 schematic?
  125. Mixing old and new tubes
  126. Mullard 3 Tube 3 watt amplifier Question
  127. Darling Pre-amplifier using WCF for 1626's
  128. Is my tube broken? Which one should replace it?
  129. What Exactly Is Voltage Drop
  130. simplex (6c33c se amp) and stabilized current
  131. Transformers with dual primaries?
  132. Building the VTA, tubes4hifi PH16 Phono Stage
  133. K&E Preamplifier
  134. 12ax7:top psvane or top shuguang?
  135. Software To Help Design Tube Amplifier
  136. How can I drop B+ Voltage
  137. Eico HF-60's power supply.
  138. Need help with Output Transformer for EL84
  139. Where to reference filaments to ground?
  140. Maratnz 9 irons
  141. Noisy re-purposed MOT
  142. Mullard HQ Stereo Amp - Transformers Question
  143. C3g triode-strapped linearity question
  144. Making tube Rp disappear now
  145. 6E5P Connection Question
  146. Push Pull stereo amp bridged to monoblock operation
  147. Mr Blohbaum's Multiplied Transconductance Amp
  148. Vintage output transformer ID
  149. Getting Rid of Some Stickys
  150. Grid is Referenced To Ground through resistor? WHAT?
  151. Problem with CCSIC in Tubelab SE
  152. AP testing of the 6L6 SE
  153. output impedance
  154. 11BM8 heater wiring question
  155. Lower AC ripple on one side of coupling cap than the other side?
  156. HELP!! K12G Valve kit transformer
  157. 4 x EL34 or 2 x 6550 in a pp amp
  158. 5965 Telefunken tube U mh CO label ?
  159. 845 IT couple amp
  160. What makes an output tube "run away"
  161. P. Millett Engineers Amplifier
  162. Biasing problem
  163. Direct coupled driver stage - bias design
  164. Monoblock project
  165. Series DC Heater chain
  166. Tranformer advice for small powered amp.
  167. Circuit for testing tube/valve - Help!
  168. new Tubes for MHZS 33
  169. Teeny Tiny Spud
  170. Paging Andy Bartha
  171. 6ak5 / 5654 tubes in Kuala Lumpur, Malaysia
  172. aikido octal all-in-one manual
  173. Conrad Johnson MV75 help needed
  174. Leak tl12+ ECC81
  175. Kuba Serenade Stereo Console - Part II - New development - amp debug question
  176. Amperex AX569
  177. Marconi tube ID help
  178. ST-70 Input Stage, Explained For Extreme Beginners
  179. heaters connected to cathode?!
  180. HK Citation I rebuild question.
  181. tube 4-125A design
  182. Mod FISHER 100AZ-balanced input!?
  183. Akidio PS-17 CLC Resistance Value Choices
  184. More questions on parallel push-pull
  185. Inputs needed for Power Transformer Design!
  186. seeking advice about Welborne Labs kit
  187. 2A3 Design: Real World Gain Question
  188. 6M11 push-pull spud amp
  189. My first Console mod - Class is in session
  190. Wright Sound WPA 3.5 Power Transformer Replacement Options
  191. DF 96 tube
  192. S.A.C.T valve transformers
  193. Very strange....
  194. Advice Needed on PSU Over voltage
  195. Griffin G170 schematic needed
  196. Funny comment about the religion of SE
  197. calculate needed wattage for output transformer
  198. AP1 tube preamp assistance needed,please?
  199. 6AN8 or ECF80 ?
  200. Simple Cheap Amp Using 6l6 and/or 12ax7?
  201. Which Tube Amp Kit Sounds Best
  202. Push Pull 6HJ5 Monoblocks
  203. 100 V transformers
  204. unstable right channel
  205. Aikido 9 pin tubes for 2a3
  206. preamp kit
  207. 71a DHT Pre - MV Rectifier, Batteries, and TVC's
  208. Build ideas? New tube amp find and I'd like some input please.
  209. OB2 SPICE model
  210. Push pull - driver tube plate voltage
  211. Voltage Doubler Caps
  212. Morgan Jones Regulator - Questions
  213. Gu-50 SE Amp , quick question...
  214. Tube Amp Open Circuit Protection
  215. 6CU6 Sweep Tube Monoblock Power Amp Build Log
  216. je labs type 76 preamp build!
  217. Any Tube Designers Out There: Money For You
  218. Output Transformer Questions
  219. cathode bias redplate question
  220. eyelets and radial capacitors
  221. Help with MiniBlok II
  222. Reading Sovtek Date Codes
  223. ECF or PCF80 as a headphone amp
  224. 60 Watt Mono Build
  225. Amp for Klipsch Heresy
  226. The ULTIMATE 300B
  227. Stage gain and cascading
  228. NOS Tube Socket Question
  229. 75 Watt/Channel Monoblock Custom Amp
  230. Wiring variac
  231. 1SH29B russian miniature tube - useful for audio?
  232. Humming in PP EL84 Tubes aMP.
  233. Repurposing a Tube Reel to Reel
  234. YaQin MC-10L Vs ST70: Sound Quality
  235. Voltage VS. Amperage?
  236. 3 questions about 6B4g
  237. DIY OPT - are these good?
  238. Audio Research regulators
  239. 0C3 for lowering down the screens?
  240. radio like interference condition in SA-100
  241. PCL86 heater flash
  242. Tube powered subwoofer
  243. Anyone have experience with Shuguang 805A
  244. The emperor's new amplifier
  245. Power supply question:twin choke input?
  246. El-84 vs El-86
  247. Modifying Tektronix Type-E Plugin
  248. radio coming thru speakers.
  249. FM tube tuner
  250. diy el 34 se

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