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  1. maxi tube tester?
  2. Zener Bias
  3. Looking to build a tube amp.
  4. Tube humming question
  5. YAPPAP (Yet Another Push-Pull Amplifier Project)
  6. voltage output dac ==> TUBE
  7. Heater switch transistor
  8. Anything post power transformer that can cause it to hum / buzz?
  9. Aikido enclosure
  10. Power Transformers. Decisions
  11. First tube after IV
  12. Suggestions for Upgrade - VDV70/100
  13. New Hybrid Output Stage and booster for SE Amp
  14. Pro and cons high DCR filter choke
  15. do-it yourself leslie help
  16. John Broskie Aikido boards
  17. Making a muscular triode monoblock amplifier using P-P Eimac 450TH's
  18. Limited run PCBs - where's copyright???
  19. Hammond Amp Question
  20. Impedance matching
  21. 6111 output for CD player - opinions - some help?
  22. Sensitivity Limiter - Bogen Mx-30a
  23. Are my speakers efficient enough for tubes?
  24. Ping Sy: LED for Cathode Bias
  25. PSU capacitors/electrolytics
  26. 2A3 monoblock power supply
  27. 2 tube questions
  28. Just acquired HEATHKIT W4-AM-*picture*
  29. Passive line stage with tubes
  30. My favorite preamp
  31. Again, a preamp tube choice.
  32. Class Double A
  33. Two Stereo Tube Amps Into Monoblocks
  34. Multi-purpose tube amp (line and guitar inputs)
  35. Espey AM/FM radio (pentagrid mixer, etc.)
  36. Need help for DIY EL34PP tube amp
  37. Higher value oil capacitors?
  38. Transconductance.
  39. 5763 tetrode on OTL ?
  40. cornford harlequin
  41. Need help: 5687 tubes and heat dissipation
  42. Tube preamp, tone control problem
  43. Use 5KV transformer as output transformer?
  44. Any EL84 alternatives?
  45. help on id of tubes
  46. Sovtek 6CA7-EH Producing smoke...
  47. building V4's and phono pre
  48. pre out on a integrated tube amp?
  49. 6SN7 some good some bad
  50. Phono pre amp - thanks SY
  51. 6c33c Tube preamp
  52. Tubes for Lumley ST40 power amplifier?
  53. Plate supply of Conrad Johnson PV-5 ?
  54. 6CD6GA in Enhanced Triode Mode for SE Amp
  55. Fender 6G15 clone
  56. Gridstoppers against RF, a necessity ?
  57. where do I.E.T. tubes come from
  58. I wanna DIY a PP 6550 Guitar Setup
  59. Hum 300b Again
  60. Pse El34
  61. Mcintosh MR65 Tube Tuner
  62. Problem: Really Bright glowing 6CA7
  63. New member introduction & question
  64. The "PowerTotem"... a new way to SET?
  65. Please advice on KT88 Push Pull
  66. console "guitar amp" part 2
  67. Odd's n Ends Revisited 6V6 SE amp
  68. Bottlehead Foreplay with chipamp
  69. Next Amp: 2a3PSE, 300B or KT88SE UL
  70. transformer list
  71. do 300b amps really sound any good?
  72. Capacitance For Mono Block Design
  73. pilot 264
  74. Octal equivalents for 6C45?
  75. lm3875 chipamp and tube pre loud buzzing
  76. Using a spdt switch to select between triode mode and pentode mode on a guitar amp.
  77. 32 ohm bass amp.
  78. PSE UL EL84 or 6V6 or EL34?
  79. Paraphase Splitter - why is it unpopular?
  80. Tubed IR spectrophotometer
  81. Very Basic 12AX7 Heater Question
  82. 6072A/12AY7 for an AKG C12 Microphone
  83. SET Suggestions
  84. Will ccs work with a DHT?
  85. Resistor type and power rating
  86. tube patents
  87. Why use E182CC?
  88. tube
  89. understanding transformer codes
  90. Maida regulator, these results expected?
  91. Moto chassis pulled! pics!
  92. glasshouse kit amps. Any good?
  93. class B
  94. a.r.t. mpa tube pre amp
  95. Upper and lower triode in E88CC
  96. Booster Amps
  97. Help on Magnavox Paraphase (Gabevee?)
  98. New stock pre -amp tubes. Whats good?
  99. CV2492 / 6922 / E88CC
  100. HK Citation II Bias "issues"
  101. 3k vs. 5k transformer for PP 2A3
  102. Turret terminal board for line stage construction?
  103. Tube Cage Question
  104. Small and easy ESL amp
  105. SOVTEK 6550WE's any good?
  106. power tube for drivers
  107. 12B4A line driver/preamp
  108. Question about tube amp power supply caps
  109. Why separate AC heater supplies for driver and power tubes?
  110. Using one half of double triode
  111. huh ?
  112. holy cow, this sounds nice
  113. my SY CCS is only giving me 15mA
  114. Changing filter cap in HH Scott
  115. Why Class AB is bad
  116. Problem, please help !!!!!!
  117. Eico hf-30 reworking
  118. KT88 Bias Adjustment
  119. Interstage Distortion Measurements
  120. Survey: Aikido distortion
  121. Loftin-White Mod
  122. Music Angel EL34
  123. How much filtering required for DC heaters?
  124. What is the best input/driver for 2A3 SE?
  125. tube kits....
  126. !2ax7 heater wiring? Series / parallel?
  127. Shunt regulator
  128. Trying to choose a project...
  129. Old Projector amp conversion project
  130. Experiences with TJ Mesh Plate DHT's
  131. The lost Millman Seely chapters on audio amps
  132. Individual fixed bias and transf coupling
  133. Transmitter e-tour
  134. 7984
  135. Screen driven EL36 / 6CM5 /PL36 /25E5
  136. Clone Marantz 7C power supply
  137. On - board supply ?
  138. Name that EL34!
  139. How much plate voltage for 6N1P's?
  140. minimalist valve pre for follower
  141. Schematic opinion needed (guitar amp)
  142. Tube availability: what would you do?
  143. Silvertone 1472 Makeover
  144. Looking for EL32 schematic
  145. oil bath cooling for tubes?
  146. Aikido Crackle Hiss Noise Solved
  147. Mini-p1 tweaks
  148. Refried Power Supply?
  149. The Edcor meets the 6AV5
  150. old console radio as guitar amp
  151. Anyone have curves for a 5HC7?
  152. Any common cathode (grounded grid) schematics?
  153. SIMPLE tube amplifier for...dummy guy...
  154. ground and earth
  155. Tube Cad Journal dead
  156. First amp
  157. 6922 direct coupled to 2A3
  158. Ok guys, get your daggers out.......
  159. How would you build a hybrid LM3xxx amp?
  160. Tade no tube amp!
  161. Sherwood 5500
  162. Most accurate way of matching triodes ?
  163. Help Identify This AMP!
  164. Old Tube Equipment Turnon
  165. Current Sourced Cathode Follower
  166. Tube Tester Data
  167. noob pre/pwer amp recording ?s
  168. Anyone heard of "in-rush" limiter resistor
  169. Will adding a 10H/125mA choke hurt bass performance
  170. Fixed bias vs. auto bias
  171. Not your average output transformer problem
  172. Balanced Audio Technology VK 3i preamplifier
  173. Musical Fidelity X10-D - changing tubes problem
  174. power transformers in series
  175. Loud sudden rumbling when turn on amp
  176. Help with tube amplification?
  177. UTC CG-431 Terminal Arrangement
  178. Mingda MC34B tweaks
  179. Symphonic Line Die Erleuchtung Reference
  180. 6SL7 Diffamp front end
  181. PT/OPT Orientation questions
  182. Effect of using 50k pot instead of 100k pot in tube preamp?
  183. Using the Crowhurst articles and Claus Byrith
  184. 12SX7
  185. Bridge SE amplifier
  186. Cad Sw
  187. Kit amps in the UK
  188. ECC82 based preamp
  189. How important is the coupling cap?
  190. any pcb layout for marshall standard 50w valve amp ?
  191. pentode driven 300b set amp - any info?
  192. Circlotron Preamp with ECC88.
  193. Removing tone controls - Need a little help
  194. SE EL84 amplifier schematics
  195. Output coupling - Choke-coil method?
  196. 7788 tube mic preamp design
  197. Amperex 6085 Tube- Where to Buy?
  198. Can a 5687 drive four 813's in triode mode ?
  199. Schematics needed for Heathkit S33
  200. Tube Sparking
  201. Vacuum Tube Pre O.C.L.
  202. Why no single triode OTL power stages?
  203. 6922 .2 sections in parallel
  204. Pre-amp input remote control
  205. Any benefit to DC heater on parallel supply rectifier (GZ34)?
  206. Relpacing 6EU7s with 12AX7s - Good idea?
  207. These Valves good for anything?
  208. buzz problem
  209. Help with trafo
  210. Svetlana EL509 III tubes
  211. Noise on Aikido output
  212. Book “Single Ended Amplifiers” by John (not Gordon) Rankin
  213. EV4417 6CM5 (6x) P-P Amp Schematic
  214. Need recommendation for cathode bypass cap
  215. Simplest flea-powered amp?
  216. Decisions, Decisions - Help me select iron
  217. 966 mercury vapor rectifier
  218. Sound Practices CDs
  219. Question about DIY EL34PP amp
  220. noisy noisy noisy noisy noisy tube
  221. Help needed lowering B+ for DIY amp
  222. 6SN7 CCS
  223. Russian 6L6 family sketchy?
  224. HT regulator using 78xx
  225. Audio Research CA50
  226. Granite tiles
  227. SE Triode amp for a newbie
  228. tube is flashing and glowing very bright!
  229. Suggestions for another amplifier project.
  230. almost just another newbie thread...
  231. Bogen PA--->Guitar Amp, few questions
  232. ts9 pt9 triode
  233. help Etude 124BA keep blowing fuse.
  234. Metal 6L6s?
  235. Hybrid amplifier help...
  236. Tube input and mosfet output
  237. musical fidelity f22 schematic wanted
  238. An intriguing 300B SE-direct-coupled-amplifier
  239. Output capacitor
  240. Cascoded Long Tail Pair Inferno!
  241. Tube ornamental rim
  242. What should be mod first in my amp
  243. EL504/PL504 spice model
  244. Long Tail Pair Phase Inverter with Penthode ?
  245. new spice models available
  246. Output Capacitor Value
  247. Popular tube websites notifier
  248. Convergent Preamplifier Schematich
  249. Source of tubes & associated stuff in Sydney?
  250. Projects involving EF50 tubes?

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