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  1. integrated amps 100 per channel
  2. KT88 mounting question
  3. Output Transformer question
  4. Angstrom Thermionic
  5. ECC88 tube buffer NEEDED !
  6. Paralell SE 807 Amp design
  7. Putting together a tweaker friendly amplifier!
  8. Tube chassis
  9. DHT headphone Hybrid-CF+
  10. Looking for specs on this Beyer Xfmr
  11. Resistors for Berning EA-2101?
  12. Uneven Plate Glow
  13. Parafeed transformer sounds thin
  14. Lightbulbs as ccs
  15. My AWESOME First DIY amp
  16. Cary audio design SLI 80
  17. A1538 OPT?
  18. Genalex A2900 Keep or Sell?
  19. 6CB6 Spice Model wanted
  20. XFMR Help?
  21. 12 volt to 300 volt inverter question for tubes
  22. These amps should be verboten!
  23. how to use PCL86 instead of ecl86
  24. PSU for Aikido (4x 12SN7)
  25. SCA35 and AU-70
  26. Analisys of power amp limitations of tube bias range
  27. DIY Phono Preamp ??
  28. NOS 211 RCA or National Union?
  29. Iron Powder + Resin Output Transformer
  30. The Radio Hat Challenge
  31. EU regulations
  32. Transconductance for kt-90 in plain english
  33. Craftsmen RC-2
  34. Valve Amplification Company V100
  35. Parallel feed transformer with SRPP
  36. It's heeeeeere!- Valve Amplifiers 4th Edition
  37. opera consonance phonostage-PM1
  38. Anybody Explain this Preamp shematic?
  39. The high-voltage collection
  40. Input transformer topology question
  41. JE Labs 300Bdx stereo - troubleshooting
  42. battery operated 12/24/48 Volt multiple tube OTL
  43. Bringing up long-stored tube gear
  44. About RH84 three channel?
  45. MCC with Fisher
  46. Directly heated cathodes
  47. Build recommendation
  48. Ortofon KS 591 - informations
  49. Oatley K295-extra space for tubes
  50. A beginner's tube amp to drive a pair of fostex Fe103e
  51. Tame the beast.
  52. KT88 and Hammond Transformer
  53. B+ Drifts down after 2 hours
  54. Power amp sputters on turnoff
  55. Yet another EQP-1A
  56. How to bias 6SL7?
  57. 6CG7/6FQ7 = 6N5P (6Н5П)
  58. #27 mu stage
  59. Compactron Regulated Power Supply
  60. Best sounding voltage amplifier for hybride.
  61. PX25 to 300B pins
  62. de-gassing power tubes???
  63. Heathkit 51-29 output transformers issure
  64. 6AS7 Model
  65. 26H choke good enough for a grid or anode choke?
  66. Russian 6R2P for small amp.
  67. Power transformer primary is open.
  68. Rectifier oddness
  69. First Tube Build, Thoughts?
  70. Output Transformers
  71. Lazy Sunday 6SN7 Preamp
  72. Audio research VT200 Biasing & Schematic
  73. finished my new preamplifier!!
  74. What would be the correct output cap for this OTL Headphone Amp?
  75. Full Bridge Rectifier With Tubes
  76. Looking for data sheet for GE JAN 6146W/7212
  77. Best Valve pre-amp match for ME 550 amp
  78. Fisher 500c
  79. From old Philips tube books , just for tube audio DIY friends !
  80. UFO
  81. Adding a preamp?
  82. XS-225 valve amp circuit.
  83. LS7/CV1660 curves
  84. Differences between 12V6 tube and 12A6 tube?
  85. Please check my schematic
  86. 12W Push pull w/6C4C
  87. Tube Date Code
  88. For new members....
  89. Graphite ring on sweep tubes
  90. 6N6P tube - focus on
  91. Hot tube preamp pedal build
  92. Radford STA100 improvements?
  93. Playmaster unit 2 help needed!
  94. help me build an output transformer
  95. Vintage Magnavox tube amp
  96. Christmas Build, advice needed.
  97. Speaker suggestions for ST-70
  98. Tube markings?
  99. gaumont-kalee
  100. amplifiers audio research D90
  101. 40W Glass A 300B tube schematic needed.
  102. Hum in one channel only
  103. Water cooling Power Tubes
  104. Toroid Output Transformer from Plitron
  105. Scott LK-30 Assembly Manual Needed
  106. HUM STARTS 1 OR 2 HOUR AFTER THE AMP IS ON
  107. The best valve amp!
  108. Equivalents for 12AT7 and 6N11 ? (Sense G3 headphone amp)
  109. More probably stupid questions about feedback
  110. single stage amp?
  111. SS 83 again
  112. Making Spice Models for tubes
  113. Seth mk 2 ???
  114. Colorful inspiration
  115. Testing KT-90's Ei NIs Yugoslavia
  116. El Cheapo Transformer Question
  117. Why does the grid extend so far beyond the anode ?
  118. Valve amplifier identification
  119. E-M-field problem
  120. Effective cathode resistance
  121. Spectrum evaluation ECC82
  122. power d90-b
  123. el34, kt88, kt90, 6550 to 8417 conversion
  124. Do you know these capacitors?
  125. GRAAF GAAFiti WFB ONE - Schematic needed
  126. Oscillation WE417A
  127. EL84 fixed fixed bias
  128. Blown stereo
  129. 807/6au6 pure pentode mode amplifier
  130. help with ID'ing a tube
  131. Magnavox 50EH5 Stereo Amp
  132. My new Circlotron OTL tube power Amp.
  133. ideas for a tube eating guitair amp
  134. 6DE4, unused pins
  135. 300B what output transformer Sowter or Lundahl?
  136. 6DJ8 preamp w/balanced input - strange schematic
  137. Screen Grid Regulation Requirements
  138. Advice needed on new 6L6 ro 6V6 SE or SET build
  139. need a little help with an HK solo2 tube receiver
  140. Help me to build Vacuum Tube Amp.
  141. amp with SRPP output stage? post if you know one
  142. Output transformer question
  143. EF86 Phono pre-amp or Mcintosh MC2200?
  144. Transcendar is Branching Out
  145. can SE driven PP be clean enough to sound SE ?
  146. k12-m amp not working
  147. 813 amp and old choke
  148. Several hundred tubes found! What to do!
  149. Possible to convert Audiorom Fu29 to Single end?
  150. Measuring bias
  151. ecc802s SRPP preamplifier
  152. HELP! Capacitor specs for Sonic Frontiers SFC-1 Control Amplifier
  153. Class A KT88 info
  154. What is screen tap of transformer?
  155. Brightest heaters in tubes?
  156. 40% tap or not
  157. 6dj8 phono schematic needed
  158. EL34 Parts..
  159. solid state driven p-p ultralinear
  160. linestage w/separate PSU: where to "split" ?
  161. Anybody know this TELEFUNKEN SE transformer?
  162. Too much feedback?
  163. Tube Power Supply Dummy Load
  164. For 6c33 Fans. A new schematic
  165. WAD phono 3 motorboating with Raphaelite 300b
  166. Vintage Stromberg Carlson
  167. GM70 and Other LTSpice Tube Models
  168. Please help me understand this feedback
  169. Affordable Valve Company - Re-bias
  170. The effect of different value coupling capacitors?
  171. Closed loop stability help needed.
  172. EAR 509 OPT Impedances
  173. Installing Hammond 1609s in K12-G
  174. 6088 Amplifier
  175. Valve Art kt88 not the same ring getter?
  176. 5mA DC transformer - tube output stage?
  177. Mini amp questions
  178. What mean those russian electronic units ?
  179. Coupling capacitors
  180. Monsters thread (high power tube amps)
  181. CCS on LTP please help
  182. Best type of pre-amp for valve/tube power amp
  183. 12au7 made by Toshiba, Hitachi, Matsushita, RSD, International and Miniwatt?
  184. Load lines
  185. Cold cathode tubes
  186. Redundant CNC stainless steel enclosures
  187. First try P-P 6S41S design
  188. Help!!! I need to get valve TAW12/20B / TRIODE for use as HF amplifier and oscillator
  189. Velleman K4040 Stereo Vacuum Tube Amplifier Volume Control
  190. 12AT7 Regulated Power Supply
  191. 2A3 to 45 Cathode Wattage?
  192. Cheap Chinese Ebay Amps
  193. Audion Sterling Integrated Amp Version - Stereo MK-I - Extended Live Time wanted
  194. Transformer Center Taps
  195. PTX temps
  196. Can A valve amplifier be both Class A and Class B?
  197. got a problem with my scope, need some advice
  198. DC coupled cathode follower driving me nuts
  199. Vacuum state gone?
  200. 1634 dual triode
  201. Aikido line amp
  202. Winding an ISO TX with pair of inductors
  203. Quad II Switch Mode PSU
  204. What do do with all of these?
  205. global negative feedback in el84 push pull
  206. Old HP transformer - what is it?
  207. FET Phase inverter to drive valve PA
  208. Core Audio 6BC4 buffer problem
  209. Power Amplifiers & Gain
  210. Power tube maximum current draw from a power supply
  211. Tube Matching in a Power Amp?
  212. SE stereo / PP mono block schematic choices
  213. How to measure output transformer?
  214. Shoddy Packaging
  215. Schematic needed for Manley SnapperŪ from Manley Labs
  216. Resistor, capacitor across output transformer AKAI M-7
  217. eBay&etc cheap tube buffers/preamp .. anything good?
  218. 6N3 Preamp Question
  219. OK guys...be gentle
  220. 6SN7 and DN2540's
  221. 10k and 6k primary windings on OPT. Use for UL?
  222. Settings for PL509, EZ80 tubes on 539c tester
  223. replacing 6LGC with 6550 or KT88
  224. ECC83 input circuitry
  225. Dynaco MK III modifications
  226. SMPS for heaters
  227. Headphone tube-amp with oddball OPT
  228. Neon Lamp Question
  229. Curious old tubes from tandy
  230. 828 Triode Curves?
  231. 813 review
  232. tube circlotron for headphone amplifier
  233. valve headphone pre-amp
  234. Shengyi 6AQ5
  235. Burn in small signal tubes?
  236. 24V powered 6N11 amplifier, 0.25% distortion, pretty good!
  237. SS diode replacements
  238. can you check if everything is ok with el84 schematic please
  239. Advice on this amp schematic please
  240. 8156's
  241. Can't get anything from my new pre-amp
  242. Bottlehead Paramount Question
  243. need help with ac/dc am/fm radio
  244. Peculiar oscillation
  245. ECC83 settings for Taylor 45C
  246. New Jolida 302b amp owner questions
  247. Help with gyrator
  248. Some basic questions...
  249. I have a hard one for you guys
  250. CCS pulsing oscillation problem

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