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  1. Signal->crossover->3 amps->speaker
  2. I want to build an inexpensive EL 84 integrated amp with a phono section.
  3. Scott17 KT88 SE Tube Amp Build Log
  4. heater currents
  5. 300B Orientation so logo faces forward
  6. Leak stereo 20
  7. Suggestion: Output tube in SET amp for midbass frequency
  8. Monster Hammond Output XFMRs
  9. 6A3 / 6B4G Design
  10. DC7 MK3 up and running.
  11. Marrantz Model 9 Transformer Buy
  12. 6N2P/6Н2П low plate current increases noise?
  13. first tube amp
  14. rogers cadet 111 or Quad 11
  15. New FM-3 Motherboard
  16. 12ax7(ecc83) and 6n2p 12ax7...........differents??
  17. Heater supply
  18. Very upgraded ST-70 kit/build w/ 6550 tubes
  19. Marantz 8b Electrolytics
  20. How biasing mA in tubes
  21. PSU id and help (psu designer ii)
  22. The all DHT SET Headphone Amp
  23. Assistance with rectifiers in PSUD
  24. Music Angel XD 500 MkII Bias setting
  25. Magnoval
  26. S.E.X. amp plate chokes replacements
  27. Ampex 600 Questions
  28. Antek out of business until April
  29. SE EL34 in triode schematic
  30. Sylvania Console?
  31. Can output transfomers be pick and mixed?
  32. i have just notice that my yaqin 2100 vk bias settings is all over the place.
  33. Preamp Design Review Request
  34. Red Plate Of Doom
  35. LED cathode bias noise issue
  36. PCL86 se amplif.
  37. Is This a good Amplier?
  38. Question: Class AB Hybrid with small signal triode and Power Mosfet output?
  39. Contemporary Transformer for Doubler
  40. The volume pot - The hidden villain of preamp
  41. Heathkit EUW-15 Univ. Power Supply (Tube)
  42. diamond cathode tubes
  43. 6146B
  44. ef86 based preamp
  45. 12FQ7 Why and will it be shortage?
  46. Trouble w/ Maida regulator bias supply
  47. impedance calculations
  48. calibrate stark 8-77?
  49. EZLoad Dummy Load
  50. Best kit for a rookie tube builder
  51. schematic question? 805 feedback
  52. 6av5ga distortion spectrum
  53. Single stage line with anode-cathode feedback
  54. VNAV' SUMO Contest 2011
  55. Direct heated triode (dht) cathode bypass: different options
  56. choice of driver for RS 241
  57. Wiring up 3 6.3 Volt Heaters to a 12V supply
  58. Adding LED's to my tubes4hifi sp6 preamp
  59. Stripped down HK A-300
  60. Westrex 2332A amplifiers
  61. Leak st20
  62. Where could I find these sockets???
  63. Hammond L-112
  64. 4-pin tube socket spring clips
  65. Quad FM1 tuner, could be in wrong section
  66. My first tube amp and speaker build I'm loven it
  67. 211 IT amp, battery vs fixed bias
  68. 300B Tube Failure
  69. how to see if a Mullard 12ax7 reissue is long or short plate
  70. Can capacitors, how do they fail?
  71. Long Preamp to Power Amp Cable Lengths
  72. My time at Hovland - HP-100 Lore
  73. hybrid quad design
  74. TooB NooB: Options?
  75. Preamp grounding
  76. Express PCB and POV-ray
  77. Looking for circuit of SE amp. for 4D32
  78. 865 tetrode in triode mode...WOW !
  79. MP-2A preamp
  80. Is a 7 watt per channel amp enough
  81. Help: Interstage Transformer for 7788 (E810F) Tube in Triode ?
  82. Transformers
  83. Pentode curves for GU 50 SE amp with 700V B+
  84. Valve op-amp pre ?
  85. Use only half of OPT secondary?
  86. On/Off cycling
  87. Tube operating points help
  88. OTL Heater Questions
  89. tube output question
  90. RIAA LCR Mythos
  91. first tube amp
  92. M135 retubing and eventual modification
  93. Taylor 211 vs. GE 211
  94. regulated
  95. What should I do with these eico hf-12's?
  96. Dynaco mk3 clone hum issue
  97. First DIY project, which SE tube amp should I build?
  98. 6n11 tube headphone amp
  99. Kt88 Pin alignement problem=did a mistake
  100. LTspice Frustration...help, please..
  101. Bias mods
  102. Maida tracking preregulator?
  103. 230 VAC to 2*140 VAC transformer - 20VA
  104. Re gettering?
  105. Distortion rise on OPT
  106. How to build a transconductance tester for small driver tubes?
  107. Musical Fidelity X-10D Cap Mod
  108. 6N3 & 6E2 tubes.
  109. help with local nfb
  110. What should I build
  111. leak st20
  112. Wright Audio WPA 3.5 Humpot & schematics
  113. the old light bulb trick
  114. Dynaco ST70 KIT - your opinion please
  115. Wire for tubes using a plate cap?
  116. Lundahl LL1660 OPT Franks 6SN7 linestage
  117. GU-50 PP + 10k:16-8-4 Ohm ,20w OPT..what is the best to do?
  118. Tomiko 10k PP transformer?
  119. Powerdrive for higher grid wattage A2 transmitter tubes
  120. Marantz Model 5 Amps and Model Seven Preamp
  121. How to calculate output transformers
  122. Grounding considerations with external PS
  123. Cathodyne fet buffered balanced line out
  124. 807pp + input phase splitter
  125. leak st 20
  126. Questions about Champ mods, NF loop and more
  127. Does anyone know what this is!..???
  128. Thought Exercise: Submini Circlotron OTL Amp
  129. Preamp Grounding PCB
  130. Manley 440: Tubes red cherry after replacing old tubes with new ones
  131. EL95 Parallel Push Pull design
  132. What is the ideal low-noise heater power for high-power output tubes?
  133. Beijing 6N6T
  134. Tube recomedations for my first tube amp
  135. Tube Load Lines and B+
  136. Hybrid rectifier possible in PSUD?
  137. Hickok calibration
  138. Bias voltage slower to come up
  139. Can You Reccommend a 6922 tube?
  140. Miniblok Resistor Parameter Modulation using Pots
  141. gm70 driver tube tests
  142. 300B Globe physical dimensions
  143. DIY Fisher 800b into a mic pre
  144. OPT Modification Question-Help please?
  145. Cant find origin
  146. Fixing Sneaky Oscillation in P-P Amplifiers
  147. fu-29 Audioromy
  148. Almarro A205A as experimentation platform
  149. Thoughts on layout and potential for improvements
  150. What is the difference between "rectifier tubes" and "power tubes"
  151. uTracer...
  152. EL84/UL84 single valve amp
  153. Mic preamp - strange high frequency roll off problem
  154. Tissbury audio
  155. midification to srpp preamplifier input voltage
  156. DHT SE amp with ultrapath
  157. Tube mic preamp problem
  158. Output transformer: reasons for destruction?
  159. Bewitch KT88
  160. SE OPT Wiring
  161. maggie 185 to stereo guitar amp?
  162. Budget 300b tubes recommendations
  163. Hum problem through one channel
  164. Audio Research LS22 DIY
  165. 300V Tube Power Supply From 120VAC Without Rectifier?
  166. NOS Tube: Black Spot on Getter Flashing? Help
  167. FET Source Follower Distortion
  168. TUBE/MOSFET/BJT hibrid amp
  169. PYE Black Box amplifier
  170. Tube tester
  171. what OPT for 211 parallel SE amp?
  172. Opinions for 6550 bias.
  173. 832A as a Single Ended Tetrode Amp?
  174. DCPP - "Engineer's Amplifier" : Need a bit of help
  175. quicky rebuild 6v6 to 807
  176. Old fire bottles.
  177. Regulated Power Supply using 6550
  178. GU50 SE vs 300B SE tube amp??
  179. Help with voltages
  180. New to valves & this forum.
  181. new amp 2a3 pp
  182. Telefunken EL153 SE circuity
  183. RH 84 Variation: Direct Coupled Pentode
  184. Single Transformer, two valve rectifiers
  185. Capacitors for Radio Frequency Amlifier and Converter Oscillator Tubes
  186. Tube Screening Cans
  187. PSU grounding
  188. 6AX4GT TV damper
  189. plate on chinese 6L6 red on one side
  190. FM stereo decoder
  191. Under the Christmas Tree - Valve Amplifiers 4th Ed.
  192. Using those dern 1625 tubes: a simple SEP amplifier
  193. Pairs of resistors in opposite directions
  194. 45 spice model
  195. APEX 460 Tube mic modification
  196. EL84 and 6BQ5 are Same?
  197. Simple hybrid amplifier (35W/8Ohm)
  198. Yaqin mc 10l or qinpu 6000 mkii
  199. Reported attack site?
  200. LCR RIAA Phono with DHTs
  201. New Here -Would Like to Build
  202. 12E1 push pull poweramp
  203. marantz model 9
  204. I would appreciate some helpfull advice from Aikido builders
  205. Dynaco ST70 big Snorting noise.
  206. Good Soft Distortion
  207. magnavox 8301 revamp, need's a second look
  208. Circuit or schematic for current source of 7.5mA
  209. Sakuma's bleeder tubes and series connected transfomers
  210. Tube measurement
  211. adding tone control to SE 6v6 amp
  212. Easy Little 6L6 SE
  213. knight KA-55
  214. Hum in tube amp
  215. Lundahl LL1660 10 mA Alt V
  216. 12au7 valve preamp (again?)
  217. Simple DC heating question
  218. 6146B?
  219. Reduce gain on power amp?
  220. ES9023 DAC(subbu) + Tube Preamp with Remote and R2R volume control(Danzup)
  221. AC heaters question
  222. Anyone tried this Mcintosh c22 knock off.
  223. Help me to find pins for tube socket
  224. HT delay pcb...
  225. Power supply, heater questions...
  226. Heathkit AA-151, to separate pre-amp advise needed?
  227. grounding
  228. 2 Stage GM-70 amp in A2... possible?
  229. GlassWare Janus Shunt Rectifier Tube Swap
  230. Schematics
  231. SE 6B4G driver tube options?
  232. seeking datasheet of 6J2B-V in english
  233. Nailing Hum in my Phono Stage
  234. Shaving voltage off HV supply?
  235. LEAK T12 and POINT ONE - worth having ?
  236. Quicksilvers Mid Mono Schematic?
  237. Russian & East European Tube Factory Logos
  238. Lampizator Channel
  239. RIAA triode or pentode
  240. Cute Little Tube Oscilloscope, Thought I'd share.
  241. Is it really possible to deliver 2W into 40 ohms with an SET ?
  242. se
  243. Connecting Two Amps to Common Input
  244. Wiring Aikido using LSA/HPA switch
  245. Most exotic SET power amplifier
  246. Help with rogers cadet 3 integrated
  247. Opamps for servos in tube amps - Christmas gift from LT, 12-12-12!
  248. tube amp hum........normal or suggested fix?
  249. Building a beast: Stereo EL84 auto bias PP tube amp
  250. Becker Brescia auto radio

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