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  1. Tube Hybrid Amp.
  2. Nasty ground loop
  3. ECC88 Class B
  4. Cree diodes
  5. Old Tube Amp Servicer In Nj???
  6. Vg-k max
  7. Anyone used PT15 / VT104 ?
  8. rebuild a Musical Fidelity X-10D ??
  9. Transformer Building
  10. Identifying weird signal transformer
  11. 100watt mono blocks
  12. Resistor combination calculator - RESCALC
  13. Aikido choice of valves (or tubes, if you will)
  14. Pin 9 on 6n6P, 6H30, etc
  15. Croft Super Micro meets Acoustat TNT200
  16. tube mic preamp kit??
  17. The SACD Meets Tubes
  18. Useful Abbreviations
  19. cap value for 6X4 rectifier?
  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. Now This is A Tube Guitar Amp!!
  91. Which cabling to use?
  92. Need 396A/6N3P/2C51/407A spice model
  93. Antek Toroidal Power Transformers
  94. HT stands for???
  95. Is it possible to hook up 6c33 plate in parallel
  96. Help eliminating hum
  97. Tube LTP CCS?
  98. Trancsendar Transformers
  99. Hafler/Keroes 6L6 UL
  100. hum
  101. Leads for ISCO PS?
  102. Negative Feedback Bogen CHB100
  103. TubeCad's Hybrid amp question
  104. Cathode bias resistor value for 6SN7?
  105. El84 2-Channel Mono Blocks
  106. Tube Design Books
  107. Interesting Williamson article..
  108. Locating Preamp Output Transformers
  109. Plate characteristics
  110. How do you finance A Great DIY Audio Amp?
  111. 808 Se
  112. Parafeed doubt
  113. A little research: old tube amps from the past
  114. RCA Victor stereo cabinet amp-newb question
  115. Transformer temperature?
  116. switch in SPICE
  117. Using a standard pentode-tetrode as output "space-charge tube" any ideas-experiences?
  118. Tube testers which is the best?
  119. finished !!!
  120. Transformer Leg Connection Question
  121. simple ccs under 5-10mA ?
  122. Curcio Sarah Phono stage: opinions?
  123. suggest a KT88 SE to build
  124. Transformer potting material??
  125. Jan E Veiset Mini EL84 pp
  126. Some questions on non common things
  127. basic question on plate curves
  128. Euro barrier strip palace
  129. ARC D90 needs new electrolytics
  130. 5763 Triode Strapped
  131. Recommend me some transformers for a PP EL84
  132. grid LED bias?
  133. Help on tube socket
  134. Taking CFB to the extremes...?
  135. Output section impedance change query
  136. Tube Suggestions
  137. 82 Popped
  138. OPT Project for EL84 SE
  139. Interesting eBay "listing" for tube amp
  140. How to chose the right choke
  141. Eco warrior thinking of jumping ship !!!
  142. HELP! Cathode bypass caps keep going...
  143. Best Operating point for a 2A3?
  144. Need help with preamp
  145. Best place to buy valves and components?
  146. Replacing cathode resistors of Aikido 1st stage (or other SRPP circuit) with chokes
  147. Circuit calculations
  148. Finally going to give my TVC/active preamp a real home...
  149. Suggestion on the input transformer for tube preamp
  150. sylvania & GE tubes
  151. SE Amplifier
  152. "fisss" on the 6C33C-pp
  153. Best price for tube output and power transformers ?
  154. What kind of output transformer?
  155. transformer
  156. 20W PP Choke PSU Question
  157. Regulated B+ supplies (using tubes)
  158. Confused by the numbers
  159. Feedback on Thorsten's legacy "universal dht" amp
  160. Are there techniques for triode-strapping on the fly?
  161. PROJECT begins: bass preamp
  162. The best bias point for KT88
  163. All tube CCS
  164. GU50 SE Amplifier class A , with 6SN7 Full construction details
  165. 50L6GT & 6L6GT sounds ??
  166. Especially for Tubelab: 845 amp 2.0
  167. Mini guitar amp from a Webcor tape amp, is it possible?
  168. Powerdrive
  169. Filament voltage and affect on Rp
  170. Tube pre-amplifier PSU
  171. Help with a cathode coupled pentode driver?
  172. Amp that has the biggest number of irons
  173. 12AX7A replacement
  174. Bogen CHB-10A Conversion, need help and advice
  175. Who said it was a good idea to try pentode!
  176. Input level
  177. 6V6GT
  178. 6AR6
  179. Any TCJ Push-Pull Calculator users?
  180. 211 Push pull operation points
  181. Edcor CXSE25-8-4K vs Hammond 1628SEA?
  182. Bass guitar preamp
  183. 50W KT88 PP w/ NFB on Bonavolta
  184. Looking for nuvistor pre-amp preamp schematic please. 6CW4?
  185. BELL 3030 Amplifier
  186. Diy Paradise!
  187. Another PP 6B4G
  188. How to get a buffer with overdrive from a 12AX7 ?
  189. Pulsating Glow
  190. Question on using glow tubes (v-regs)
  191. Eliminating the OPT: impedance matching
  192. KT88 and push-pull ultra-linear
  193. Positronic Tubes
  194. Paint steel chassis with the "aluminum paint" used on wire fence?
  195. Best bias for 6cg7
  196. Coupling caps test bed
  197. 829B Based Amp
  198. slight hum still haunting me
  199. CCS bias question
  200. Can't get solder to stick
  201. EL84 amp plus subwoofers? STUPID? OR NOT?
  202. Johan Potgieter
  203. parallel sections
  204. PL504/EL84 SE vs parafeed
  205. [help] Look for McIntosh MI-200 Circuit diagram
  206. My experience: the cheap punch set VS Greenlee punch
  207. 6V6GT SE schematic -need!!!
  208. What's the deal with Broskie's iPod buddy?
  209. a quiz about AC power
  210. Beard P100 Amplifier
  211. Quick identification question
  212. 6V6 guitar amp design attempt
  213. Some more RIAA questions
  214. what to do?
  215. A suspect EL34
  216. Best way of reducing heater voltage?
  217. Musical Instrument tube amp part suppliers
  218. tubelab
  219. My first power amp
  220. El34 SE pentode
  221. All Electron Tubes Manufacturers
  222. Mu stage driver
  223. two questions on Parafeed amplifier
  224. 6AU5GT
  225. Connection advice
  226. 'Tube'-ing a reel-to-reel player.
  227. EL34 make up by PCB
  228. wanted RIAA schematic
  229. What is the best software to create tube schematic
  230. Soft clipping acceptable?
  231. help for this amp
  232. Pentode PP amp for comments, please
  233. 966A rectifier
  234. 938 power triode
  235. PL36 PP Amplifier 22W Full construction details
  236. Quick question about the output of my amp
  237. Sansui Transformers from Tokyo Electronic Industrial Co. LTD.
  238. An "All American" tube Project
  239. Aikido and output transformer
  240. Why are Hammond SE OPTs dissed? Heavier than the competition...
  241. Driver stage headroom
  242. Help me before I deal hot electric death to myself (PS question)
  243. AVO CT-160
  244. Two cathode resistor bypass questions
  245. Home-Made Tube Guitar Heads
  246. What do you guys think?
  247. Antique Sound Lab Aq1003
  248. Audiomaster integrated (Valve) amp
  249. PP Amp using 811A
  250. Replacing ECC83 in Leak Stereo50 with ECC808

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