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  1. when using PSUD2, do you...
  2. Depression... and a plea for help!!!
  3. Weston 981 Type 3 schematic and parts list needed
  4. 3W 6C33B-C SE OTL schematics ready
  5. Batory tubes, anyone familiar with these?
  6. Musical Pre-amp topology needed. Interstages please apply!
  7. Tube power Amp matching with SAE Mark M pre amp and AR18 speaker or MS 25i
  8. PowerDrive Circuit for 805 (+ve grid bias)
  9. Alternate spice models
  10. Is this heater supply OK?
  11. Basic RC Value Question
  12. Hookup powersubwoofer to a tube receiver.
  13. Transformer question RE; connections on phono stage
  14. Rectifier Tubes Data - Quick Sheet
  15. Now This is A Tube Guitar Amp!!
  16. Which cabling to use?
  17. Need 396A/6N3P/2C51/407A spice model
  18. Antek Toroidal Power Transformers
  19. HT stands for???
  20. Is it possible to hook up 6c33 plate in parallel
  21. Help eliminating hum
  22. Tube LTP CCS?
  23. Trancsendar Transformers
  24. Hafler/Keroes 6L6 UL
  25. hum
  26. Leads for ISCO PS?
  27. Negative Feedback Bogen CHB100
  28. TubeCad's Hybrid amp question
  29. Cathode bias resistor value for 6SN7?
  30. El84 2-Channel Mono Blocks
  31. Tube Design Books
  32. Interesting Williamson article..
  33. Locating Preamp Output Transformers
  34. Plate characteristics
  35. How do you finance A Great DIY Audio Amp?
  36. 808 Se
  37. Parafeed doubt
  38. A little research: old tube amps from the past
  39. RCA Victor stereo cabinet amp-newb question
  40. Transformer temperature?
  41. switch in SPICE
  42. Using a standard pentode-tetrode as output "space-charge tube" any ideas-experiences?
  43. Tube testers which is the best?
  44. finished !!!
  45. Transformer Leg Connection Question
  46. simple ccs under 5-10mA ?
  47. Curcio Sarah Phono stage: opinions?
  48. suggest a KT88 SE to build
  49. Transformer potting material??
  50. Jan E Veiset Mini EL84 pp
  51. Some questions on non common things
  52. basic question on plate curves
  53. Euro barrier strip palace
  54. ARC D90 needs new electrolytics
  55. 5763 Triode Strapped
  56. Recommend me some transformers for a PP EL84
  57. grid LED bias?
  58. Help on tube socket
  59. Taking CFB to the extremes...?
  60. Output section impedance change query
  61. Tube Suggestions
  62. 82 Popped
  63. OPT Project for EL84 SE
  64. Interesting eBay "listing" for tube amp
  65. How to chose the right choke
  66. Eco warrior thinking of jumping ship !!!
  67. HELP! Cathode bypass caps keep going...
  68. Best Operating point for a 2A3?
  69. Need help with preamp
  70. Best place to buy valves and components?
  71. Replacing cathode resistors of Aikido 1st stage (or other SRPP circuit) with chokes
  72. Circuit calculations
  73. Finally going to give my TVC/active preamp a real home...
  74. Suggestion on the input transformer for tube preamp
  75. sylvania & GE tubes
  76. SE Amplifier
  77. "fisss" on the 6C33C-pp
  78. Best price for tube output and power transformers ?
  79. What kind of output transformer?
  80. transformer
  81. 20W PP Choke PSU Question
  82. Regulated B+ supplies (using tubes)
  83. Confused by the numbers
  84. Feedback on Thorsten's legacy "universal dht" amp
  85. Are there techniques for triode-strapping on the fly?
  86. PROJECT begins: bass preamp
  87. The best bias point for KT88
  88. All tube CCS
  89. GU50 SE Amplifier class A , with 6SN7 Full construction details
  90. 50L6GT & 6L6GT sounds ??
  91. Especially for Tubelab: 845 amp 2.0
  92. Mini guitar amp from a Webcor tape amp, is it possible?
  93. Powerdrive
  94. Filament voltage and affect on Rp
  95. Tube pre-amplifier PSU
  96. Help with a cathode coupled pentode driver?
  97. Amp that has the biggest number of irons
  98. 12AX7A replacement
  99. Bogen CHB-10A Conversion, need help and advice
  100. Who said it was a good idea to try pentode!
  101. Input level
  102. 6V6GT
  103. 6AR6
  104. Any TCJ Push-Pull Calculator users?
  105. 211 Push pull operation points
  106. Edcor CXSE25-8-4K vs Hammond 1628SEA?
  107. Bass guitar preamp
  108. 50W KT88 PP w/ NFB on Bonavolta
  109. Looking for nuvistor pre-amp preamp schematic please. 6CW4?
  110. BELL 3030 Amplifier
  111. Diy Paradise!
  112. Another PP 6B4G
  113. How to get a buffer with overdrive from a 12AX7 ?
  114. Pulsating Glow
  115. Question on using glow tubes (v-regs)
  116. Eliminating the OPT: impedance matching
  117. KT88 and push-pull ultra-linear
  118. Positronic Tubes
  119. Paint steel chassis with the "aluminum paint" used on wire fence?
  120. Best bias for 6cg7
  121. Coupling caps test bed
  122. 829B Based Amp
  123. slight hum still haunting me
  124. CCS bias question
  125. Can't get solder to stick
  126. EL84 amp plus subwoofers? STUPID? OR NOT?
  127. Johan Potgieter
  128. parallel sections
  129. PL504/EL84 SE vs parafeed
  130. [help] Look for McIntosh MI-200 Circuit diagram
  131. My experience: the cheap punch set VS Greenlee punch
  132. 6V6GT SE schematic -need!!!
  133. What's the deal with Broskie's iPod buddy?
  134. a quiz about AC power
  135. Beard P100 Amplifier
  136. Quick identification question
  137. 6V6 guitar amp design attempt
  138. Some more RIAA questions
  139. what to do?
  140. A suspect EL34
  141. Best way of reducing heater voltage?
  142. Musical Instrument tube amp part suppliers
  143. tubelab
  144. My first power amp
  145. El34 SE pentode
  146. All Electron Tubes Manufacturers
  147. Mu stage driver
  148. two questions on Parafeed amplifier
  149. 6AU5GT
  150. Connection advice
  151. 'Tube'-ing a reel-to-reel player.
  152. EL34 make up by PCB
  153. wanted RIAA schematic
  154. What is the best software to create tube schematic
  155. Soft clipping acceptable?
  156. help for this amp
  157. Pentode PP amp for comments, please
  158. 966A rectifier
  159. 938 power triode
  160. PL36 PP Amplifier 22W Full construction details
  161. Quick question about the output of my amp
  162. Sansui Transformers from Tokyo Electronic Industrial Co. LTD.
  163. An "All American" tube Project
  164. Aikido and output transformer
  165. Why are Hammond SE OPTs dissed? Heavier than the competition...
  166. Driver stage headroom
  167. Help me before I deal hot electric death to myself (PS question)
  168. AVO CT-160
  169. Two cathode resistor bypass questions
  170. Home-Made Tube Guitar Heads
  171. What do you guys think?
  172. Antique Sound Lab Aq1003
  173. Audiomaster integrated (Valve) amp
  174. PP Amp using 811A
  175. Replacing ECC83 in Leak Stereo50 with ECC808
  176. 6N30/6H30 Datasheet
  177. Equivalents to 6888
  178. Input voltage
  179. Converting from integrated to pure amp
  180. Final schematic, I think?
  181. Toroidal core saturation
  182. Mystery SE OPT
  183. Is this a Spud Amp ?
  184. input cap V rating
  185. 6922 Heater - BIAS
  186. JJ 2A3-40 Watt?
  187. 12AU7 testing result: Are these tubes still good?
  188. "OTK" stamp on russian devices
  189. Where did nj7p.org go ?
  190. New to forum! Or: A few newbie questions
  191. Powersuply Le Bong?
  192. Fixed Bias: the ups and downs
  193. Bias Adjustment Question
  194. Multiple secondaries hook-up!!!
  195. Plate voltage related to sound?
  196. Array speakers & OTL
  197. First Post - Hum on 5687 Pre-amp
  198. DC powered amps
  199. Evaluating Unknown Power Transformers
  200. 0v grid bias with UL connection?
  201. LV Filament supply quandry
  202. which tube using NonDirect heat with best-class sound ?
  203. Surround Decoder - Subtract amplifier
  204. New To Forum - First Post
  205. Try to understand
  206. tube site
  207. OTL with 6S19P?
  208. What should B+ on 300B push-pull be?
  209. Regulated PSU with EL84
  210. How do I design minimum current for 35W PP AMP
  211. Buying bits'n'bobs...
  212. Can't make this address work.....
  213. schematics for 6C33 single ended OTL?
  214. Guitar amp input tube paralleled
  215. valve preamp
  216. trio W-38 problems
  217. Cheap Russian 2.2uF 400V PIO Capacitor
  218. Otl Se
  219. My 2A3 is being left behind
  220. SE for Bass?
  221. Wal-Mart power supplies
  222. Nice deal!
  223. Look for high-voltage regulator projects
  224. Typical plate Voltage for el34
  225. Arc Sp8
  226. New Phono amp - developing stage
  227. fender princeton 5D2.. DONE!
  228. CCS Bang for the buck output or driver?
  229. pentode driver sanity check - before i build
  230. 6av6 mini pre didn t work
  231. CCS in the output stage
  232. Looking for Schematic using KC3 Preamp ?
  233. If you are looking to try balanced AC power....
  234. The best Coupling cap (under $20)
  235. What makes a speaker "tube-friendly"?
  236. Using 6L6 for 300b driver
  237. Heater reference
  238. 6G15 output transformer selection
  239. Morgan Jones and cascodes
  240. 6A3/6B4G/6S4S(2A3/2S4S) project
  241. blues junior complaints and 6G15 question
  242. Question about changing a hybrid
  243. High-end Class A valve amplifiers will be illegal in USA?
  244. transformerless supply
  245. "Quasi" ultralinear experiment - questions...
  246. Help on a LUXMAN MQ 3600
  247. Changing from 6X4 to EZ81
  248. Design questions, driver stage for SE.
  249. S5 K-12G Question
  250. Ideas for a tube that heavily distorts ?

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