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  1. 6072A/12AY7 for an AKG C12 Microphone
  2. SET Suggestions
  3. Will ccs work with a DHT?
  4. Resistor type and power rating
  5. tube patents
  6. Why use E182CC?
  7. tube
  8. understanding transformer codes
  9. Maida regulator, these results expected?
  10. Moto chassis pulled! pics!
  11. glasshouse kit amps. Any good?
  12. class B
  13. a.r.t. mpa tube pre amp
  14. Upper and lower triode in E88CC
  15. Booster Amps
  16. Help on Magnavox Paraphase (Gabevee?)
  17. New stock pre -amp tubes. Whats good?
  18. CV2492 / 6922 / E88CC
  19. HK Citation II Bias "issues"
  20. 3k vs. 5k transformer for PP 2A3
  21. Turret terminal board for line stage construction?
  22. Tube Cage Question
  23. Small and easy ESL amp
  24. SOVTEK 6550WE's any good?
  25. power tube for drivers
  26. 12B4A line driver/preamp
  27. Question about tube amp power supply caps
  28. Why separate AC heater supplies for driver and power tubes?
  29. Using one half of double triode
  30. huh ?
  31. holy cow, this sounds nice
  32. my SY CCS is only giving me 15mA
  33. Changing filter cap in HH Scott
  34. Why Class AB is bad
  35. Problem, please help !!!!!!
  36. Eico hf-30 reworking
  37. KT88 Bias Adjustment
  38. Interstage Distortion Measurements
  39. Survey: Aikido distortion
  40. Loftin-White Mod
  41. Music Angel EL34
  42. How much filtering required for DC heaters?
  43. What is the best input/driver for 2A3 SE?
  44. tube kits....
  45. 12AX7 heater wiring? Series / parallel?
  46. Shunt regulator
  47. Trying to choose a project...
  48. Old Projector amp conversion project
  49. Experiences with TJ Mesh Plate DHT's
  50. The lost Millman Seely chapters on audio amps
  51. Individual fixed bias and transf coupling
  52. Transmitter e-tour
  53. 7984
  54. Screen driven EL36 / 6CM5 /PL36 /25E5
  55. Clone Marantz 7C power supply
  56. On - board supply ?
  57. Name that EL34!
  58. How much plate voltage for 6N1P's?
  59. minimalist valve pre for follower
  60. Tube availability: what would you do?
  61. Looking for EL32 schematic
  62. oil bath cooling for tubes?
  63. Aikido Crackle Hiss Noise Solved
  64. Mini-p1 tweaks
  65. Refried Power Supply?
  66. The Edcor meets the 6AV5
  67. Anyone have curves for a 5HC7?
  68. Any common cathode (grounded grid) schematics?
  69. SIMPLE tube amplifier for...dummy guy...
  70. ground and earth
  71. Tube Cad Journal dead
  72. First amp
  73. 6922 direct coupled to 2A3
  74. Ok guys, get your daggers out.......
  75. How would you build a hybrid LM3xxx amp?
  76. Tade no tube amp!
  77. Sherwood 5500
  78. Most accurate way of matching triodes ?
  79. Help Identify This AMP!
  80. Old Tube Equipment Turnon
  81. Current Sourced Cathode Follower
  82. Tube Tester Data
  83. noob pre/pwer amp recording ?s
  84. Anyone heard of "in-rush" limiter resistor
  85. Will adding a 10H/125mA choke hurt bass performance
  86. Fixed bias vs. auto bias
  87. Not your average output transformer problem
  88. Balanced Audio Technology VK 3i preamplifier
  89. Musical Fidelity X10-D - changing tubes problem
  90. power transformers in series
  91. Loud sudden rumbling when turn on amp
  92. Help with tube amplification?
  93. UTC CG-431 Terminal Arrangement
  94. Mingda MC34B tweaks
  95. Symphonic Line Die Erleuchtung Reference
  96. 6SL7 Diffamp front end
  97. PT/OPT Orientation questions
  98. Effect of using 50k pot instead of 100k pot in tube preamp?
  99. Using the Crowhurst articles and Claus Byrith
  100. 12SX7
  101. Bridge SE amplifier
  102. Cad Sw
  103. Kit amps in the UK
  104. ECC82 based preamp
  105. How important is the coupling cap?
  106. pentode driven 300b set amp - any info?
  107. Circlotron Preamp with ECC88.
  108. Removing tone controls - Need a little help
  109. SE EL84 amplifier schematics
  110. Output coupling - Choke-coil method?
  111. 7788 tube mic preamp design
  112. Amperex 6085 Tube- Where to Buy?
  113. Can a 5687 drive four 813's in triode mode ?
  114. Schematics needed for Heathkit S33
  115. Tube Sparking
  116. Vacuum Tube Pre O.C.L.
  117. Why no single triode OTL power stages?
  118. 6922 .2 sections in parallel
  119. Pre-amp input remote control
  120. Any benefit to DC heater on parallel supply rectifier (GZ34)?
  121. Relpacing 6EU7s with 12AX7s - Good idea?
  122. These Valves good for anything?
  123. buzz problem
  124. Help with trafo
  125. Svetlana EL509 III tubes
  126. Noise on Aikido output
  127. Book “Single Ended Amplifiers” by John (not Gordon) Rankin
  128. EV4417 6CM5 (6x) P-P Amp Schematic
  129. Need recommendation for cathode bypass cap
  130. Simplest flea-powered amp?
  131. Decisions, Decisions - Help me select iron
  132. 966 mercury vapor rectifier
  133. Sound Practices CDs
  134. Question about DIY EL34PP amp
  135. noisy noisy noisy noisy noisy tube
  136. Help needed lowering B+ for DIY amp
  137. 6SN7 CCS
  138. Russian 6L6 family sketchy?
  139. HT regulator using 78xx
  140. Audio Research CA50
  141. Granite tiles
  142. SE Triode amp for a newbie
  143. tube is flashing and glowing very bright!
  144. Suggestions for another amplifier project.
  145. almost just another newbie thread...
  146. ts9 pt9 triode
  147. help Etude 124BA keep blowing fuse.
  148. Metal 6L6s?
  149. Hybrid amplifier help...
  150. Tube input and mosfet output
  151. musical fidelity f22 schematic wanted
  152. An intriguing 300B SE-direct-coupled-amplifier
  153. Output capacitor
  154. Cascoded Long Tail Pair Inferno!
  155. Tube ornamental rim
  156. What should be mod first in my amp
  157. EL504/PL504 spice model
  158. Long Tail Pair Phase Inverter with Penthode ?
  159. new spice models available
  160. Output Capacitor Value
  161. Popular tube websites notifier
  162. Convergent Preamplifier Schematich
  163. Source of tubes & associated stuff in Sydney?
  164. Projects involving EF50 tubes?
  165. Kt77?
  166. Best way to translate schematic into actual layout?
  167. Clean to breakup range
  168. 26 preamp problem
  169. mono tube microphone preamp
  170. Help designing a tube amp...
  171. MJE350 pinout and ccs issue
  172. KGB- DC Coupled Hybrid Balance OTL/OCL HeadAmp
  173. negative voltage doubler for ccs
  174. Loftin-White
  175. SET amp from 1619 driving a 809. Opinion wanted.
  176. Re:preamp sputtering noise
  177. Building an ECL82 Single Ended Amp ...
  178. help a newbie build his first tube project
  179. Mercury Vapour rectifiers
  180. El Cheapo Circlotron PSU question....
  181. lookin for a tube buffer
  182. Baby SET w/6FD7 and ilk, for Bas and others....
  183. py500A question
  184. Mundorf Silver-oil VS Jensen copper foil
  185. Drawing Schematics for Tubes
  186. Drive Current for EL509 Enhanced Triode
  187. How to use Svetlana 6d22s?
  188. James Singapore
  189. Oil Filled Capacitor not upright OK?
  190. Aikido using a #26 tube?
  191. Tube and DIY Newbie Kel84 vs Stoetkit Jr.2
  192. ZOTL and ferrites
  193. 6V6 vs EL84 SE UL
  194. Component selection
  195. Snap sound on preamp powerup
  196. Secondary voltage for heaters
  197. good schematic archive site
  198. Transitional SIlvertoneAmp between 1472 and 1482?
  199. Cheap Source for Hammond 125ESE
  200. PCF801 - pentode section has remote or sharp cut-off?
  201. Tube as a desk lamp
  202. Ella EL34 Bias Help
  203. tube diy can or can t
  204. Quad II Problems
  205. Choke input P/supply and critical damping
  206. balanced grounded grid preamp
  207. Fluorescent ballasts in SE
  208. Hammond Transformers and EZ80/EZ81
  209. Look what I found this weekend!
  210. Question on 300B tubes from Parts Connexion
  211. Russian Tubes
  212. Help a first timer to select...
  213. GE 5692 BLACK base?
  214. sources on the web for chinese amps
  215. How much capacitance in a power supply
  216. Parallel 12AT7 for 2A3 driver?
  217. Maida's regulator
  218. Common Mode Chokes for Heater Supplies
  219. Ming Da MC34B....passive or active pre amp?
  220. tube power supply upgrade... elna's, RTX, infinicap
  221. What tube do you think this OPT matches?
  222. safety fuse
  223. Short and sweet review of Sun Audio SV-300BE
  224. Help selecting a DIY schematic
  225. OP Transformer power rating guesstimate
  226. need a lot help on an el34 project :P
  227. Anode Follower
  228. CCS for tubes/valves: PCBs
  229. Improvement to DM's Generic Triode Model for 12AU7
  230. ccs, direct coupling and stuff
  231. Replica Pre QUAD 22 - Questions on mids
  232. Is this cap ok for audio?
  233. Remote Controlled Stepped Attenuator
  234. UltraLinear in toroidal parafeed, my findings.
  235. Help to tame a 12AX7/6AQ5 circuit
  236. DIY something like iMPAMP??
  237. Have you seen this tester?
  238. Help with taming a 12AX7 and 6AQ5a amp
  239. Linear Technology 1083CP adjusting problem
  240. radiation tubes
  241. 813 socket dimensions
  242. Cheap SE output transformers
  243. BIAS and B+ caps WKZ or NH
  244. Cleaning tubes...
  245. Manfred Huber
  246. IEC standards, anywhere?
  247. possible volume and balance control - does this look like it will work well?
  248. EL84 Amp - Baby Huey
  249. 6X4
  250. What do you guys use for HV toggles?

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