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  1. 6y6ga
  2. Filmosound L-1 6V6 Volume pot issue
  3. 3C24 in a SE output stage - output transformer impedance recommendation !!!
  4. Another 3f4 spice triode model: 5718 submini triode
  5. hp-8903B advice??
  6. need info on how to convert my bogen k10 for guitars use
  7. Differential Amplfiers - current sources under/over the triodes
  8. Impedance rate VS impedance stability
  9. Anyone running Mikael's SE KT88 in Pentode?
  10. what double triode is less microphonic ?
  11. Need advice on proper use of anode chokes.
  12. Grounding problem?
  13. Current regulation for filament of say a 300B
  14. diagram for OTP 6.6K valve KT88
  15. Dynaco Pas Transformer
  16. Regulated screen supply
  17. Shocked!!!
  18. set el84 tube amp
  19. tube preamp RIAA
  20. 4E27 as a substitution of 845
  21. LS 37 lite audio phono
  22. I want to build an amp!!!
  23. Multimeter test leads?
  24. Choosing proper g2 grid stoppers for SE UL..?
  25. audio note P1SE improvements
  26. Help for choke input regulated PSU
  27. 5687 perveance
  28. Where Can I Pick Up Neutral
  29. Hyperlinear line preamp
  30. What tube to use.
  31. Using mains transformer as output transformer
  32. AutoCAD of tube Packages?
  33. Has Anyone Tried This Before??
  34. More Tube Learning (for me) Cathode followers
  35. weird hum problem
  36. Simple technique for guitar amp channel switching?
  37. Weird oscillation
  38. Tube stash strategy and testing (long)
  39. Choke loaded LTP
  40. LM Ericsson 2C51 help!
  41. Antek TXs??Any use em???
  42. Speaker impedance questions (SE KT88)
  43. Spud-Assist: Totem-Pole Current-Mirror PP Hybrid
  44. my 6922 / E88CC preamp
  45. For the moderator
  46. 3 amps for HE speakers
  47. Pentode sounds great
  48. Shindo claret
  49. james 6123hs
  50. 6550 Amplifier
  51. ARC Ls 15 Schematic
  52. Super spud-amp?
  53. Basic Oscilloscope Usage Questions
  54. Grounded Cathode phase?
  55. Simple SE, how to wire CFB with outputs for different speaker impedances?
  56. PCB Board designer?
  57. Speaker for your low power tube amp?
  58. Tube collection Database.
  59. E288cc value?
  60. Hi End Tube Project
  61. parallel SE 2A3
  62. Want to build a tube/SS hybrid preamp for HT
  63. Do anyone has schematic for Counterpoint SA3000 ?
  64. Thermistor B+ or primary
  65. Measuring AC at Radio Frequencies
  66. The MingDa MC67-HA meets Frankenstein
  67. What's the biggest full wave damper diode?
  68. Maximising Tube Life
  69. Darling power supply calculations
  70. This is nice - Pix Ongen tube RIAA amp
  71. Tubelab SE 45... Super amp!?
  72. DAC - tube gain stage w/ AC heaters
  73. Microphonics?
  74. Insides of Tango Transformers
  75. Thoughts on horizontal sweep tubes?
  76. 2A3 Design Issues (Long)
  77. Design using EL42 output pentodes
  78. Blumlein's Garter Bias question
  79. Original ECL86 "Baby Huey" thread
  80. Too low heater voltage?
  81. Tube and digital?
  82. 807 monoblocks
  83. What to swap a 6AV6 for?
  84. Pot Noise Help
  85. cathode bias circuit question
  86. ECC40 driver stage for 2A3
  87. heater current and 6922 - 6n6p swap
  88. Tube Crystal Clock Oscillator
  89. Decware Zen Plate Model ZSP1
  90. Battery Power Preamp E188CC review please !
  91. 6sl7
  92. Tube sale at AES
  93. 5v3a
  94. 813 trioded Datasheet and curves
  95. Importance of resistor working voltage spec?
  96. TCJ My-Stock DB
  97. 845 Amp
  98. Ripple filtering help... strange slow rise and fall of voltage
  99. Plate and Filament Transformers
  100. Tentlabs Neg Bias Vs Machmat AFB
  101. Looking for 12AT7/ECC81 phonostage schematic
  102. 6AV5 PP amp Design Review
  103. 6sn7 Preamp power supply
  104. Please: tube kit for <$300?
  105. making a load line
  106. Telefunken Consoles: not just for tube and iron scavenging!
  107. Genalex Gold Lion KT77
  108. driving HD600
  109. Counterpoint SA-3000
  110. Phono stage for 2 7F7s (stereo) plus buffer?
  111. Help and your input on YAQIN MC10L EL34
  112. EL Cheapo Quad amplifier???
  113. Noob questions about a K-12/K-502 kit
  114. 3 quick transformer questions
  115. Push Pull Output tranies for SE amp?
  116. Tube Rectifier Capacitance?
  117. rca 189 b console amps need more info
  118. upgrade transformer?
  119. Parasitic oscillation? (picture)
  120. newbie question : driver/output relationship, input sensitivity
  121. Unknown tube logo
  122. Impedance, the 10x rule, losses & bandwidth
  123. el84/6bq5 PSE
  124. A very odd phase inverter- comments?
  125. Please check my work :)
  126. NOS purchase, should I be concerned?
  127. Strange splitter in the Audio Research D4
  128. 6ak5/5654 plate resistance
  129. Further Troubleshooting Simple SE
  130. What is the purpose of the g2 bypass cap?
  131. questionable 2a3 schematic
  132. overdrive circuit for hammond organs(need help)
  133. A singular experiment with a unheated tube.
  134. Limited bass response in one channel
  135. Show me your fave phonostage circuits.
  136. tube heater voltage, how much is too much?
  137. Para feed choke
  138. Dynaco ST35 power?
  139. Tips/comments for upcoming 300B build
  140. page Eli Duttman's Simple p-p with 5965 MQ EXO-173 and 6AQ5
  141. DHT cathode follower idea
  142. GK71 Output Transformer
  143. Schematics for A.I. Mod 2D
  144. Determing Battery Voltage for cathode bias
  145. OT for audio but still tube
  146. Getting transfer characteristics
  147. Pentodes and Choke Loading
  148. Stepped airgap choke ?
  149. Noob question
  150. SE 300B Integrated Amp: Help choose circuit design
  151. SunAudio 2A3 to 300B
  152. Filament Snubber Cap Explodes! What happened?
  153. Alot of 12AX7's about
  154. DIY tube microphone preamp
  155. Tube tester and PSUD II questions
  156. Wurlitzer/Fisher Amp Musings
  157. please check my work
  158. How to get cathode bias info from grid bias info?
  159. SE 300B Integrated Amp: Transformers
  160. Positive feedback, improperly drawn screen, or WTF?
  161. GE Console RC 7100 A - need some help!
  162. Output tube for 600V B+, 5800 ohm primary PP, tertiary 25% UL taps?
  163. Still tring to find a couple 100uf motor runs
  164. small push-pull amp to preamp
  165. Electraprint EL84 PP with PSA-2N
  166. OpAmp Swap?
  167. Bogen MX-60A- output transformer bandwidth?
  168. 6AS7 Parallel Feed Amp
  169. PSpice model of output transformer
  170. simple guitar push pull amp
  171. Siemens capacitor
  172. Super 6BG6 vs. 6550
  173. 5687 line stage
  174. Audio Standards
  175. 4 x used 5867A (TB3/750) triodes
  176. 12au7 who has the best ultra low noise ???
  177. Questions about tweaking the Miniblok SET...
  178. The core -sonic reasons
  179. Removing pot from valve pre amp
  180. Power transformer question
  181. Tube construction materials
  182. LTP second grid
  183. How to figure out the bias point of fisher X-100A
  184. Schematic help! (Bell)
  185. Audio Note Soro SE SCHEMATICS
  186. 807 Tube Triode Connected
  187. Would you pls help.
  188. came across this nice 200W tube amp schematic
  189. Anyone seen this amp topology before?
  190. Max. grid resistance
  191. Yaqin mc10l &quot;popping&quot;
  192. Audio Electronics Supply
  193. Alamo Fury 2566
  194. My friends in the USA - tube stores in LA
  195. Can this marraige work?
  196. RJM with 12AY7
  197. Bias winding to power sand
  198. FM Tube radio design
  199. What do you use? Not technical but relative.
  200. looking for a pre-amp schematic
  201. I have waay too many 6DJ8's
  202. Tango NP126
  203. Two 6J5 versus one 6SN7
  204. Bunch of questions regarding plate CCS and some else.
  205. Tube Store in Washington DC (6C33C Triode Buy Where??)
  206. Scott 399 Receiver Schematics?
  207. Need help with 6l6GC choices
  208. Need Hammond/Everett drawings.
  209. 6V6 PP-based Baby Huey/Mullard inspired design needed...
  210. Ecf80
  211. Please Explain difference Mono vs Push Pull vs Single End etc
  212. VU Meters
  213. diy preamps, bottlehead, decware....
  214. Power supply choke help needed
  215. LED cathode biasing in push-pull input stage
  216. applying fixed bias to cathode followers
  217. Battieries for B+
  218. Put amp in chassis, then, right channel doesn't work!
  219. hammond transformers?
  220. Two Rectifiers, One transformer
  221. Cool problem with Marshall TSL!!!
  222. Tubes currently in production
  223. Rachel's Corner - Shuguang
  224. Small 50C5 Amp improvements
  225. Low voltage pentode?
  226. TX distortion
  227. DIY U-L curves
  228. Transformer spacing
  229. Covers for budget output transformers
  230. Correct for bipolar voltage doubler?
  231. Source for 100uf motor run cap.
  232. magnavox 185aa with 4-6v6
  233. Yaqin 300B re-biasing
  234. Line Amp Diy 6j1
  235. Diy Line Amp£_£_6sn7
  236. Diy Line Amp Audio Note M7
  237. Diy Line Amp Cat Sl-1
  238. Diy Line Amp Malanz 7
  239. Diy Line Amp Htm
  240. Diy Line Amp 5670
  241. Diy Line Amp Jp-80
  242. Quality difference between output transformers
  243. A group-build project for a tube power amp in India
  244. pilot light ideas please
  245. Small signal pentode - zener screen regulation - why not ??
  246. Another KT-88
  247. Rod Coleman filament supply circuit boards
  248. Losing the treble and transient response in this PX25 SE amp
  249. Calculating Zout for Pentode amp with NFB?
  250. Bypassing a volume pot

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