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

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