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  1. Flexible tube (or SS) electronic XO
  2. LAVATORY - Lamp Valve Transistor Hybrid (will this work?)
  3. Transformer revers use question
  4. Fixed bias, cathode feedback?
  5. spudnik, spudMiG ?
  6. I need the KT120 base dimensions
  7. Need help with chassis layout.
  8. tube amp ID ?
  9. GU50 filaments voltage!
  10. Does anybody have an RCA RS171 Schematic
  11. Opinions wanted: Low Z SE power supplies
  12. DC heaters, best way to bias ?
  13. Ignition coil as SE OPT
  14. Opt color code identification (Onetics)
  15. Drawback to Larger Capacity Output Transformer Than Required?
  16. Send me some pictures of your amps
  17. leak stereo 60
  18. B2 Spice V5.0
  19. Mains Fuse and Switch Best Practice
  20. Identify these vintage tube amp rivets
  21. RCA ORTHOPHONIC LMI-32216A manual copy needed
  22. Question on strange 6l6 schematic symbols
  23. Resistor value?
  24. ST70 chassis polishing
  25. Octal to RCA
  26. KT120 plate load for 150+watts
  27. Need a copy of Aikido 5687 manual pdf
  28. Nutshell Raven Headphone amp with balanced I/O
  29. Bartolucci: beware of him !!!
  30. Finding plate resistance
  31. Pleides Tube only headphone amp
  32. I think I know what I want (seasoned advice)
  33. CCS filament supply vs inductors for DHT
  34. Cap outer foil low impedance help...
  35. Distorted low end SE micro amp
  36. LM3886 + ECC82/12AU7
  37. My LCR phono with HUM....
  38. Winter 2A3 SET project.
  39. 6BQ5 pp with LM317 ccs
  40. Marantz 7 clone
  41. Music Angel pre-amplifier - few modifications
  42. Transformer Questions (1st Amp Project)
  43. Morgan Jones and PS Bypass Caps
  44. Ruby Tuby at 24V?
  45. Budget Iron for Low-Power SET
  46. Output transformer mounting questions
  47. 3c24 preamp?
  48. Newb Q - JE Simple 2A3 as Monoblocks
  49. Vacuum tube amp design
  50. Counterpoint SA7.1 circuit question
  51. Variable Gain Control Topology
  52. Unknown amplifier, anyone recognice it?
  53. Harman Kardon "The Lute" A-220 - Repair manual?
  54. G2 input grid 6DQ6 push pull
  55. Schade SE 6550
  56. Heathkit aa-23 fix up
  57. 6SN7 Line Stage w/ Tone Controls
  58. Octal Heaven??
  59. how do i reach Chris the georgetown technician?
  60. mu follower bootstrap cap value
  61. POLL: The Legendary Williamson Amp Modified By SY
  62. 5Y3 PSU Question
  63. jolida 302b sweet sounding amp vs Audio Innovations 500
  64. MFA M120 any personal experience values and reviews?
  65. Scott 233D one channel bad - Next Project?
  66. Quickie GLA Tube Amp - whats the 1 ohm setting for?
  67. This Look Right?
  68. SIMPLE KIT with step by step instruction
  69. Ultra Simple PP ECC99?
  70. Heathkit Audio Analyzer
  71. The Best Valve Amp Design In Modern Time: Poll Candidates
  72. Current Requirements for Power Tubes
  73. Thermionic generator (Triode) appears to be real this time...
  74. Choosing Tube + OPT for preamp
  75. My first preamp with tubes
  76. Another New Guy Starting With %@&?~ Chinese PCB
  77. Question about output transformers.
  78. NEETS & Kirchhoff , I'm stuck
  79. Reviving a late 50's el84-based hifi
  80. Need a 7K a-a
  81. Tube ID
  82. Anyone know what these are?
  83. Let's Talk About Grounding
  84. Tube Pre Amp DIY Schematic
  85. Rectifier choice
  86. power transformer fo single tube ecl82 amplifier
  87. Today's Version of The Williamson Amp
  88. what's wrong with my calculations?
  89. Phono stage design considerations part 1: choosing 1st stage tube
  90. Can anyone suggest a practical use for this gauge on a tube amp
  91. Completed my 829 PPP w/ pmillet's driver pcb's.
  92. adding input transformer to Sony sra-2 tube preamp
  93. 6P45S 50W mono block tube amplifier
  94. Is it possible to drive 4xKT88PP with an AC coupled LTP PI?
  95. curious answer from CommonSense Audio
  96. Local Feedback for Push Pull Pentode
  97. Exotic interstage transformers
  98. DAC & Tube Preamp, Elevated Heater Question
  99. This Schematic Sounds Great
  100. Most Exotic MM phono preamplifier
  101. Fast track or How to utilize two 3-hole chassis for 20W+ monoblocks
  102. Strange noises on my Aikido power on
  103. lost capacitance
  104. Best SE KT66 schematic?
  105. Mixing old and new tubes
  106. Mullard 3 Tube 3 watt amplifier Question
  107. Darling Pre-amplifier using WCF for 1626's
  108. Is my tube broken? Which one should replace it?
  109. simplex (6c33c se amp) and stabilized current
  110. Transformers with dual primaries?
  111. Building the VTA, tubes4hifi PH16 Phono Stage
  112. K&E Preamplifier
  113. 12ax7:top psvane or top shuguang?
  114. Software To Help Design Tube Amplifier
  115. How can I drop B+ Voltage
  116. Eico HF-60's power supply.
  117. Need help with Output Transformer for EL84
  118. Where to reference filaments to ground?
  119. Maratnz 9 irons
  120. Noisy re-purposed MOT
  121. Mullard HQ Stereo Amp - Transformers Question
  122. C3g triode-strapped linearity question
  123. Making tube Rp disappear now
  124. 6E5P Connection Question
  125. Push Pull stereo amp bridged to monoblock operation
  126. Mr Blohbaum's Multiplied Transconductance Amp
  127. Vintage output transformer ID
  128. Getting Rid of Some Stickys
  129. Grid is Referenced To Ground through resistor? WHAT?
  130. AP testing of the 6L6 SE
  131. output impedance
  132. 11BM8 heater wiring question
  133. Lower AC ripple on one side of coupling cap than the other side?
  134. HELP!! K12G Valve kit transformer
  135. 4 x EL34 or 2 x 6550 in a pp amp
  136. 5965 Telefunken tube U mh CO label ?
  137. 845 IT couple amp
  138. What makes an output tube "run away"
  139. P. Millett Engineers Amplifier
  140. Biasing problem
  141. Direct coupled driver stage - bias design
  142. Monoblock project
  143. Series DC Heater chain
  144. Tranformer advice for small powered amp.
  145. Circuit for testing tube/valve - Help!
  146. new Tubes for MHZS 33
  147. Teeny Tiny Spud
  148. Paging Andy Bartha
  149. 6ak5 / 5654 tubes in Kuala Lumpur, Malaysia
  150. aikido octal all-in-one manual
  151. Conrad Johnson MV75 help needed
  152. Leak tl12+ ECC81
  153. Kuba Serenade Stereo Console - Part II - New development - amp debug question
  154. Amperex AX569
  155. Marconi tube ID help
  156. ST-70 Input Stage, Explained For Extreme Beginners
  157. heaters connected to cathode?!
  158. HK Citation I rebuild question.
  159. tube 4-125A design
  160. Mod FISHER 100AZ-balanced input!?
  161. Akidio PS-17 CLC Resistance Value Choices
  162. More questions on parallel push-pull
  163. Inputs needed for Power Transformer Design!
  164. seeking advice about Welborne Labs kit
  165. 2A3 Design: Real World Gain Question
  166. 6M11 push-pull spud amp
  167. My first Console mod - Class is in session
  168. Wright Sound WPA 3.5 Power Transformer Replacement Options
  169. DF 96 tube
  170. S.A.C.T valve transformers
  171. Very strange....
  172. Advice Needed on PSU Over voltage
  173. Griffin G170 schematic needed
  174. Funny comment about the religion of SE
  175. calculate needed wattage for output transformer
  176. AP1 tube preamp assistance needed,please?
  177. 6AN8 or ECF80 ?
  178. Simple Cheap Amp Using 6l6 and/or 12ax7?
  179. Which Tube Amp Kit Sounds Best
  180. Push Pull 6HJ5 Monoblocks
  181. 100 V transformers
  182. unstable right channel
  183. Aikido 9 pin tubes for 2a3
  184. preamp kit
  185. 71a DHT Pre - MV Rectifier, Batteries, and TVC's
  186. Build ideas? New tube amp find and I'd like some input please.
  187. OB2 SPICE model
  188. Push pull - driver tube plate voltage
  189. Voltage Doubler Caps
  190. Morgan Jones Regulator - Questions
  191. Gu-50 SE Amp , quick question...
  192. Tube Amp Open Circuit Protection
  193. 6CU6 Sweep Tube Monoblock Power Amp Build Log
  194. je labs type 76 preamp build!
  195. Any Tube Designers Out There: Money For You
  196. Output Transformer Questions
  197. cathode bias redplate question
  198. eyelets and radial capacitors
  199. Help with MiniBlok II
  200. Reading Sovtek Date Codes
  201. ECF or PCF80 as a headphone amp
  202. 60 Watt Mono Build
  203. Amp for Klipsch Heresy
  204. The ultimate 300B
  205. Stage gain and cascading
  206. NOS Tube Socket Question
  207. 75 Watt/Channel Monoblock Custom Amp
  208. Wiring variac
  209. 1SH29B russian miniature tube - useful for audio?
  210. Humming in PP EL84 Tubes aMP.
  211. Repurposing a Tube Reel to Reel
  212. YaQin MC-10L Vs ST70: Sound Quality
  213. Voltage VS. Amperage?
  214. 3 questions about 6B4g
  215. DIY OPT - are these good?
  216. Audio Research regulators
  217. 0C3 for lowering down the screens?
  218. radio like interference condition in SA-100
  219. PCL86 heater flash
  220. Tube powered subwoofer
  221. Anyone have experience with Shuguang 805A
  222. The emperor's new amplifier
  223. Power supply question:twin choke input?
  224. El-84 vs El-86
  225. Modifying Tektronix Type-E Plugin
  226. radio coming thru speakers.
  227. FM tube tuner
  228. diy el 34 se
  229. Transformers Specs for a 2x KT88 Amp
  230. 805 Positive or Negative Grid
  231. Point To Point, 100 percent, No Kit
  232. More line loads etc
  233. B300 C120 rectifier replacement.
  234. Triode simulation/emulation with solid state
  235. What is the driver circuit here?
  236. Dynaco Mark III
  237. ReCap- Heathkit AA-151 Help
  238. Hammond Chassis?
  239. How about an IXCP10M90 as a FETRON
  240. PUSH PULL SE ???
  241. More load lines...
  242. 7193/2C22: wich brand's the best?
  243. Bumed out over this Setchell Carlson
  244. Looking for Electron flow diagram
  245. Why Only Automatic/Semi-Automatic Bias?
  246. Audio Note M-Zero preamp
  247. Load lines. What?
  248. Preamp - pop on channel change
  249. Just for interest.
  250. 813 push-pull output 250W tube amp

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