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  1. Matching resistors to 1% or Better
  2. Wirewound cathode resistor
  3. Tube Hybrid Amp.
  4. Nasty ground loop
  5. ECC88 Class B
  6. Old Tube Amp Servicer In Nj???
  7. Vg-k max
  8. Anyone used PT15 / VT104 ?
  9. rebuild a Musical Fidelity X-10D ??
  10. Transformer Building
  11. Identifying weird signal transformer
  12. 100watt mono blocks
  13. Resistor combination calculator - RESCALC
  14. Aikido choice of valves (or tubes, if you will)
  15. Pin 9 on 6n6P, 6H30, etc
  16. Croft Super Micro meets Acoustat TNT200
  17. tube mic preamp kit??
  18. The SACD Meets Tubes
  19. Useful Abbreviations
  20. One B+ for the both driver and output tube if they are identical?
  21. Fisher 500B Schematic Question
  22. SE Output Transfromers Question
  23. Amplifier Project
  24. Grid Stopper for parallel sides of dual triode
  25. centre tap or floating heaters?
  26. Converting 6.3V to 6.3VCT Quick questions
  27. Russian Nuvistors...Anyone tried them?
  28. 一台300bc胆机,大家给点意见,谢谢
  29. Australian Amp Manufacturers
  30. Old radio quick question re PS
  31. Kt90 Pse
  32. Velleman K4040 is Always Blowing Output Tubes
  33. looking for transformer with the following specs?
  34. 5686 amplifier schematic
  35. Heaters for cathodes with a large swing
  36. 6DJ8 as phase splitter.
  37. New driver for SE 2A3
  38. I磛e made a Mu stage with 6888 and 6C45...
  39. Quick urgent Help plz !
  40. Cheap SET Kit for UK
  41. How can I change bias 6H30pi tube
  42. DHT heater voltage
  43. Ok SY...You Win
  44. Input level required- PP KT88
  45. SE 6C33C-B ; preview of a new Baby
  46. 2A3 grid DC voltage
  47. Dyna ST70 experience bypassing input tubes
  48. [Theory] Amplifier efficiency
  49. Pentode Cascode CCS
  50. Noval Relay
  51. Where to buy 6A5G ?
  52. AC or grounded DC for heater?
  53. EM84 based VUmeter "lines" don't go to zero
  54. 'scoping tube amps
  55. Preferred operating points of small signal triodes
  56. Is the Nuvistor Better Than The 12B4 For A Line Stage
  57. audio research schematics
  58. Looking to put the entire (last edition) RCA and Sylvania books online
  59. 5693 as a phono preamp?
  60. Audible Illusions Dual Mono Preamplifier
  61. should the filaments be already hot before the B+ is applied or
  62. One Electron vs. Transcendar
  63. "Y" caps? current bleed?
  64. I made a 200W tube amp!
  65. Power amp kit for a complete newbie
  66. Confused, datasheet of 417A/5842
  67. Audio Amp Project
  68. Tube tester settings?
  69. Neutrik XLR for Umbilical
  70. Primary Impedance
  71. Need help for HV section Design
  72. power amp kit recommendations
  73. 6N6P vs 5687
  74. Triode spice models for Circuit maker
  75. My ARC D70 get trouble
  76. when using PSUD2, do you...
  77. Depression... and a plea for help!!!
  78. Weston 981 Type 3 schematic and parts list needed
  79. 3W 6C33B-C SE OTL schematics ready
  80. Batory tubes, anyone familiar with these?
  81. Musical Pre-amp topology needed. Interstages please apply!
  82. Tube power Amp matching with SAE Mark M pre amp and AR18 speaker or MS 25i
  83. PowerDrive Circuit for 805 (+ve grid bias)
  84. Alternate spice models
  85. Is this heater supply OK?
  86. Basic RC Value Question
  87. Hookup powersubwoofer to a tube receiver.
  88. Transformer question RE; connections on phono stage
  89. Rectifier Tubes Data - Quick Sheet
  90. Which cabling to use?
  91. Need 396A/6N3P/2C51/407A spice model
  92. Antek Toroidal Power Transformers
  93. HT stands for???
  94. Is it possible to hook up 6c33 plate in parallel
  95. Help eliminating hum
  96. Tube LTP CCS?
  97. Trancsendar Transformers
  98. Hafler/Keroes 6L6 UL
  99. hum
  100. Leads for ISCO PS?
  101. Negative Feedback Bogen CHB100
  102. TubeCad's Hybrid amp question
  103. Cathode bias resistor value for 6SN7?
  104. El84 2-Channel Mono Blocks
  105. Tube Design Books
  106. Interesting Williamson article..
  107. Locating Preamp Output Transformers
  108. Plate characteristics
  109. How do you finance A Great DIY Audio Amp?
  110. 808 Se
  111. Parafeed doubt
  112. A little research: old tube amps from the past
  113. RCA Victor stereo cabinet amp-newb question
  114. Transformer temperature?
  115. switch in SPICE
  116. Using a standard pentode-tetrode as output "space-charge tube" any ideas-experiences?
  117. Tube testers which is the best?
  118. finished !!!
  119. Transformer Leg Connection Question
  120. simple ccs under 5-10mA ?
  121. Curcio Sarah Phono stage: opinions?
  122. suggest a KT88 SE to build
  123. Transformer potting material??
  124. Jan E Veiset Mini EL84 pp
  125. Some questions on non common things
  126. basic question on plate curves
  127. Euro barrier strip palace
  128. ARC D90 needs new electrolytics
  129. 5763 Triode Strapped
  130. Recommend me some transformers for a PP EL84
  131. grid LED bias?
  132. Help on tube socket
  133. Taking CFB to the extremes...?
  134. Output section impedance change query
  135. Tube Suggestions
  136. 82 Popped
  137. OPT Project for EL84 SE
  138. Interesting eBay "listing" for tube amp
  139. How to chose the right choke
  140. Eco warrior thinking of jumping ship !!!
  141. HELP! Cathode bypass caps keep going...
  142. Best Operating point for a 2A3?
  143. Need help with preamp
  144. Best place to buy valves and components?
  145. Replacing cathode resistors of Aikido 1st stage (or other SRPP circuit) with chokes
  146. Circuit calculations
  147. Finally going to give my TVC/active preamp a real home...
  148. Suggestion on the input transformer for tube preamp
  149. sylvania & GE tubes
  150. SE Amplifier
  151. "fisss" on the 6C33C-pp
  152. Best price for tube output and power transformers ?
  153. What kind of output transformer?
  154. transformer
  155. 20W PP Choke PSU Question
  156. Regulated B+ supplies (using tubes)
  157. Confused by the numbers
  158. Feedback on Thorsten's legacy "universal dht" amp
  159. Are there techniques for triode-strapping on the fly?
  160. The best bias point for KT88
  161. All tube CCS
  162. GU50 SE Amplifier class A , with 6SN7 Full construction details
  163. 50L6GT & 6L6GT sounds ??
  164. Especially for Tubelab: 845 amp 2.0
  165. Powerdrive
  166. Filament voltage and affect on Rp
  167. Tube pre-amplifier PSU
  168. Help with a cathode coupled pentode driver?
  169. Amp that has the biggest number of irons
  170. 12AX7A replacement
  171. Bogen CHB-10A Conversion, need help and advice
  172. Who said it was a good idea to try pentode!
  173. Input level
  174. 6V6GT
  175. 6AR6
  176. Any TCJ Push-Pull Calculator users?
  177. 211 Push pull operation points
  178. Edcor CXSE25-8-4K vs Hammond 1628SEA?
  179. 50W KT88 PP w/ NFB on Bonavolta
  180. Looking for nuvistor pre-amp preamp schematic please. 6CW4?
  181. BELL 3030 Amplifier
  182. Diy Paradise!
  183. Another PP 6B4G
  184. How to get a buffer with overdrive from a 12AX7 ?
  185. Pulsating Glow
  186. Question on using glow tubes (v-regs)
  187. Eliminating the OPT: impedance matching
  188. KT88 and push-pull ultra-linear
  189. Positronic Tubes
  190. Paint steel chassis with the "aluminum paint" used on wire fence?
  191. Best bias for 6cg7
  192. Coupling caps test bed
  193. 829B Based Amp
  194. slight hum still haunting me
  195. CCS bias question
  196. Can't get solder to stick
  197. EL84 amp plus subwoofers? STUPID? OR NOT?
  198. Johan Potgieter
  199. parallel sections
  200. PL504/EL84 SE vs parafeed
  201. [help] Look for McIntosh MI-200 Circuit diagram
  202. My experience: the cheap punch set VS Greenlee punch
  203. 6V6GT SE schematic -need!!!
  204. What's the deal with Broskie's iPod buddy?
  205. a quiz about AC power
  206. Beard P100 Amplifier
  207. Quick identification question
  208. Some more RIAA questions
  209. what to do?
  210. A suspect EL34
  211. Best way of reducing heater voltage?
  212. Musical Instrument tube amp part suppliers
  213. tubelab
  214. My first power amp
  215. El34 SE pentode
  216. All Electron Tubes Manufacturers
  217. Mu stage driver
  218. two questions on Parafeed amplifier
  219. 6AU5GT
  220. Connection advice
  221. 'Tube'-ing a reel-to-reel player.
  222. EL34 make up by PCB
  223. wanted RIAA schematic
  224. What is the best software to create tube schematic
  225. Soft clipping acceptable?
  226. help for this amp
  227. Pentode PP amp for comments, please
  228. 966A rectifier
  229. 938 power triode
  230. PL36 PP Amplifier 22W Full construction details
  231. Quick question about the output of my amp
  232. Sansui Transformers from Tokyo Electronic Industrial Co. LTD.
  233. An "All American" tube Project
  234. Aikido and output transformer
  235. Why are Hammond SE OPTs dissed? Heavier than the competition...
  236. Driver stage headroom
  237. Help me before I deal hot electric death to myself (PS question)
  238. AVO CT-160
  239. Two cathode resistor bypass questions
  240. What do you guys think?
  241. Antique Sound Lab Aq1003
  242. Audiomaster integrated (Valve) amp
  243. PP Amp using 811A
  244. Replacing ECC83 in Leak Stereo50 with ECC808
  245. 6N30/6H30 Datasheet
  246. Equivalents to 6888
  247. Input voltage
  248. Converting from integrated to pure amp
  249. Final schematic, I think?
  250. Toroidal core saturation

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