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  1. Seek for your comments/advice to newbie on Tube world
  2. CCSed LTP validity?
  3. Suitability of transmitter tubes for musical amplifiers
  4. Anyone using an 813 in pentode?
  5. Electrolytic in the feedback loop
  6. El34 PP Vs. El34 PSE
  7. RIAA Phono Amp Design
  8. Matching resistors to 1% or Better
  9. Wirewound cathode resistor
  10. Tube Hybrid Amp.
  11. Nasty ground loop
  12. ECC88 Class B
  13. Cree diodes
  14. Old Tube Amp Servicer In Nj???
  15. Vg-k max
  16. Anyone used PT15 / VT104 ?
  17. rebuild a Musical Fidelity X-10D ??
  18. Transformer Building
  19. Identifying weird signal transformer
  20. 100watt mono blocks
  21. Resistor combination calculator - RESCALC
  22. Aikido choice of valves (or tubes, if you will)
  23. Pin 9 on 6n6P, 6H30, etc
  24. Croft Super Micro meets Acoustat TNT200
  25. tube mic preamp kit??
  26. The SACD Meets Tubes
  27. Useful Abbreviations
  28. cap value for 6X4 rectifier?
  29. One B+ for the both driver and output tube if they are identical?
  30. Fisher 500B Schematic Question
  31. SE Output Transfromers Question
  32. Amplifier Project
  33. Grid Stopper for parallel sides of dual triode
  34. centre tap or floating heaters?
  35. Converting 6.3V to 6.3VCT Quick questions
  36. Russian Nuvistors...Anyone tried them?
  37. 一台300bc胆机,大家给点意见,谢谢
  38. Australian Amp Manufacturers
  39. Old radio quick question re PS
  40. Kt90 Pse
  41. Velleman K4040 is Always Blowing Output Tubes
  42. looking for transformer with the following specs?
  43. 5686 amplifier schematic
  44. Heaters for cathodes with a large swing
  45. 6DJ8 as phase splitter.
  46. New driver for SE 2A3
  47. I磛e made a Mu stage with 6888 and 6C45...
  48. Quick urgent Help plz !
  49. Cheap SET Kit for UK
  50. How can I change bias 6H30pi tube
  51. DHT heater voltage
  52. Ok SY...You Win
  53. Input level required- PP KT88
  54. SE 6C33C-B ; preview of a new Baby
  55. 2A3 grid DC voltage
  56. Dyna ST70 experience bypassing input tubes
  57. [Theory] Amplifier efficiency
  58. Pentode Cascode CCS
  59. Noval Relay
  60. Where to buy 6A5G ?
  61. AC or grounded DC for heater?
  62. EM84 based VUmeter "lines" don't go to zero
  63. 'scoping tube amps
  64. Preferred operating points of small signal triodes
  65. Is the Nuvistor Better Than The 12B4 For A Line Stage
  66. audio research schematics
  67. Looking to put the entire (last edition) RCA and Sylvania books online
  68. 5693 as a phono preamp?
  69. Audible Illusions Dual Mono Preamplifier
  70. should the filaments be already hot before the B+ is applied or
  71. One Electron vs. Transcendar
  72. "Y" caps? current bleed?
  73. I made a 200W tube amp!
  74. Power amp kit for a complete newbie
  75. Confused, datasheet of 417A/5842
  76. Audio Amp Project
  77. Tube tester settings?
  78. Neutrik XLR for Umbilical
  79. Primary Impedance
  80. Need help for HV section Design
  81. power amp kit recommendations
  82. 6N6P vs 5687
  83. Triode spice models for Circuit maker
  84. My ARC D70 get trouble
  85. when using PSUD2, do you...
  86. Depression... and a plea for help!!!
  87. Weston 981 Type 3 schematic and parts list needed
  88. 3W 6C33B-C SE OTL schematics ready
  89. Batory tubes, anyone familiar with these?
  90. Musical Pre-amp topology needed. Interstages please apply!
  91. Tube power Amp matching with SAE Mark M pre amp and AR18 speaker or MS 25i
  92. PowerDrive Circuit for 805 (+ve grid bias)
  93. Alternate spice models
  94. Is this heater supply OK?
  95. Basic RC Value Question
  96. Hookup powersubwoofer to a tube receiver.
  97. Transformer question RE; connections on phono stage
  98. Rectifier Tubes Data - Quick Sheet
  99. Now This is A Tube Guitar Amp!!
  100. Which cabling to use?
  101. Need 396A/6N3P/2C51/407A spice model
  102. Antek Toroidal Power Transformers
  103. HT stands for???
  104. Is it possible to hook up 6c33 plate in parallel
  105. Help eliminating hum
  106. Tube LTP CCS?
  107. Trancsendar Transformers
  108. Hafler/Keroes 6L6 UL
  109. hum
  110. Leads for ISCO PS?
  111. Negative Feedback Bogen CHB100
  112. TubeCad's Hybrid amp question
  113. Cathode bias resistor value for 6SN7?
  114. El84 2-Channel Mono Blocks
  115. Tube Design Books
  116. Interesting Williamson article..
  117. Locating Preamp Output Transformers
  118. Plate characteristics
  119. How do you finance A Great DIY Audio Amp?
  120. 808 Se
  121. Parafeed doubt
  122. A little research: old tube amps from the past
  123. RCA Victor stereo cabinet amp-newb question
  124. Transformer temperature?
  125. switch in SPICE
  126. Using a standard pentode-tetrode as output "space-charge tube" any ideas-experiences?
  127. Tube testers which is the best?
  128. finished !!!
  129. Transformer Leg Connection Question
  130. simple ccs under 5-10mA ?
  131. Curcio Sarah Phono stage: opinions?
  132. suggest a KT88 SE to build
  133. Transformer potting material??
  134. Jan E Veiset Mini EL84 pp
  135. Some questions on non common things
  136. basic question on plate curves
  137. Euro barrier strip palace
  138. ARC D90 needs new electrolytics
  139. 5763 Triode Strapped
  140. Recommend me some transformers for a PP EL84
  141. grid LED bias?
  142. Help on tube socket
  143. Taking CFB to the extremes...?
  144. Output section impedance change query
  145. Tube Suggestions
  146. 82 Popped
  147. OPT Project for EL84 SE
  148. Interesting eBay "listing" for tube amp
  149. How to chose the right choke
  150. Eco warrior thinking of jumping ship !!!
  151. HELP! Cathode bypass caps keep going...
  152. Best Operating point for a 2A3?
  153. Need help with preamp
  154. Best place to buy valves and components?
  155. Replacing cathode resistors of Aikido 1st stage (or other SRPP circuit) with chokes
  156. Circuit calculations
  157. Finally going to give my TVC/active preamp a real home...
  158. Suggestion on the input transformer for tube preamp
  159. sylvania & GE tubes
  160. SE Amplifier
  161. "fisss" on the 6C33C-pp
  162. Best price for tube output and power transformers ?
  163. What kind of output transformer?
  164. transformer
  165. 20W PP Choke PSU Question
  166. Regulated B+ supplies (using tubes)
  167. Confused by the numbers
  168. Feedback on Thorsten's legacy "universal dht" amp
  169. Are there techniques for triode-strapping on the fly?
  170. PROJECT begins: bass preamp
  171. The best bias point for KT88
  172. All tube CCS
  173. GU50 SE Amplifier class A , with 6SN7 Full construction details
  174. 50L6GT & 6L6GT sounds ??
  175. Especially for Tubelab: 845 amp 2.0
  176. Mini guitar amp from a Webcor tape amp, is it possible?
  177. Powerdrive
  178. Filament voltage and affect on Rp
  179. Tube pre-amplifier PSU
  180. Help with a cathode coupled pentode driver?
  181. Amp that has the biggest number of irons
  182. 12AX7A replacement
  183. Bogen CHB-10A Conversion, need help and advice
  184. Who said it was a good idea to try pentode!
  185. Input level
  186. 6V6GT
  187. 6AR6
  188. Any TCJ Push-Pull Calculator users?
  189. 211 Push pull operation points
  190. Edcor CXSE25-8-4K vs Hammond 1628SEA?
  191. Bass guitar preamp
  192. 50W KT88 PP w/ NFB on Bonavolta
  193. Looking for nuvistor pre-amp preamp schematic please. 6CW4?
  194. BELL 3030 Amplifier
  195. Diy Paradise!
  196. Another PP 6B4G
  197. How to get a buffer with overdrive from a 12AX7 ?
  198. Pulsating Glow
  199. Question on using glow tubes (v-regs)
  200. Eliminating the OPT: impedance matching
  201. KT88 and push-pull ultra-linear
  202. Positronic Tubes
  203. Paint steel chassis with the "aluminum paint" used on wire fence?
  204. Best bias for 6cg7
  205. Coupling caps test bed
  206. 829B Based Amp
  207. slight hum still haunting me
  208. CCS bias question
  209. Can't get solder to stick
  210. EL84 amp plus subwoofers? STUPID? OR NOT?
  211. Johan Potgieter
  212. parallel sections
  213. PL504/EL84 SE vs parafeed
  214. [help] Look for McIntosh MI-200 Circuit diagram
  215. My experience: the cheap punch set VS Greenlee punch
  216. 6V6GT SE schematic -need!!!
  217. What's the deal with Broskie's iPod buddy?
  218. a quiz about AC power
  219. Beard P100 Amplifier
  220. Quick identification question
  221. 6V6 guitar amp design attempt
  222. Some more RIAA questions
  223. what to do?
  224. A suspect EL34
  225. Best way of reducing heater voltage?
  226. Musical Instrument tube amp part suppliers
  227. tubelab
  228. My first power amp
  229. El34 SE pentode
  230. All Electron Tubes Manufacturers
  231. Mu stage driver
  232. two questions on Parafeed amplifier
  233. 6AU5GT
  234. Connection advice
  235. 'Tube'-ing a reel-to-reel player.
  236. EL34 make up by PCB
  237. wanted RIAA schematic
  238. What is the best software to create tube schematic
  239. Soft clipping acceptable?
  240. help for this amp
  241. Pentode PP amp for comments, please
  242. 966A rectifier
  243. 938 power triode
  244. PL36 PP Amplifier 22W Full construction details
  245. Quick question about the output of my amp
  246. Sansui Transformers from Tokyo Electronic Industrial Co. LTD.
  247. An "All American" tube Project
  248. Aikido and output transformer
  249. Why are Hammond SE OPTs dissed? Heavier than the competition...
  250. Driver stage headroom

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