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  1. Anyone have curves for a 5HC7?
  2. Any common cathode (grounded grid) schematics?
  3. SIMPLE tube amplifier for...dummy guy...
  4. ground and earth
  5. Tube Cad Journal dead
  6. First amp
  7. 6922 direct coupled to 2A3
  8. Ok guys, get your daggers out.......
  9. How would you build a hybrid LM3xxx amp?
  10. Tade no tube amp!
  11. Sherwood 5500
  12. Most accurate way of matching triodes ?
  13. Help Identify This AMP!
  14. Old Tube Equipment Turnon
  15. Current Sourced Cathode Follower
  16. Tube Tester Data
  17. noob pre/pwer amp recording ?s
  18. Anyone heard of "in-rush" limiter resistor
  19. Will adding a 10H/125mA choke hurt bass performance
  20. Fixed bias vs. auto bias
  21. Not your average output transformer problem
  22. Balanced Audio Technology VK 3i preamplifier
  23. Musical Fidelity X10-D - changing tubes problem
  24. power transformers in series
  25. Loud sudden rumbling when turn on amp
  26. Help with tube amplification?
  27. UTC CG-431 Terminal Arrangement
  28. Mingda MC34B tweaks
  29. Symphonic Line Die Erleuchtung Reference
  30. 6SL7 Diffamp front end
  31. PT/OPT Orientation questions
  32. Effect of using 50k pot instead of 100k pot in tube preamp?
  33. Using the Crowhurst articles and Claus Byrith
  34. 12SX7
  35. Bridge SE amplifier
  36. Cad Sw
  37. Kit amps in the UK
  38. ECC82 based preamp
  39. How important is the coupling cap?
  40. any pcb layout for marshall standard 50w valve amp ?
  41. pentode driven 300b set amp - any info?
  42. Circlotron Preamp with ECC88.
  43. Removing tone controls - Need a little help
  44. SE EL84 amplifier schematics
  45. Output coupling - Choke-coil method?
  46. 7788 tube mic preamp design
  47. Amperex 6085 Tube- Where to Buy?
  48. Can a 5687 drive four 813's in triode mode ?
  49. Schematics needed for Heathkit S33
  50. Tube Sparking
  51. Vacuum Tube Pre O.C.L.
  52. Why no single triode OTL power stages?
  53. 6922 .2 sections in parallel
  54. Pre-amp input remote control
  55. Any benefit to DC heater on parallel supply rectifier (GZ34)?
  56. Relpacing 6EU7s with 12AX7s - Good idea?
  57. These Valves good for anything?
  58. buzz problem
  59. Help with trafo
  60. Svetlana EL509 III tubes
  61. Noise on Aikido output
  62. Book “Single Ended Amplifiers” by John (not Gordon) Rankin
  63. EV4417 6CM5 (6x) P-P Amp Schematic
  64. Need recommendation for cathode bypass cap
  65. Simplest flea-powered amp?
  66. Decisions, Decisions - Help me select iron
  67. 966 mercury vapor rectifier
  68. Sound Practices CDs
  69. Question about DIY EL34PP amp
  70. noisy noisy noisy noisy noisy tube
  71. Help needed lowering B+ for DIY amp
  72. 6SN7 CCS
  73. Russian 6L6 family sketchy?
  74. HT regulator using 78xx
  75. Audio Research CA50
  76. Granite tiles
  77. SE Triode amp for a newbie
  78. tube is flashing and glowing very bright!
  79. Suggestions for another amplifier project.
  80. almost just another newbie thread...
  81. Bogen PA--->Guitar Amp, few questions
  82. ts9 pt9 triode
  83. help Etude 124BA keep blowing fuse.
  84. Metal 6L6s?
  85. Hybrid amplifier help...
  86. Tube input and mosfet output
  87. musical fidelity f22 schematic wanted
  88. An intriguing 300B SE-direct-coupled-amplifier
  89. Output capacitor
  90. Cascoded Long Tail Pair Inferno!
  91. Tube ornamental rim
  92. What should be mod first in my amp
  93. EL504/PL504 spice model
  94. Long Tail Pair Phase Inverter with Penthode ?
  95. new spice models available
  96. Output Capacitor Value
  97. Popular tube websites notifier
  98. Convergent Preamplifier Schematich
  99. Source of tubes & associated stuff in Sydney?
  100. Projects involving EF50 tubes?
  101. Kt77?
  102. Best way to translate schematic into actual layout?
  103. Clean to breakup range
  104. 26 preamp problem
  105. mono tube microphone preamp
  106. Help designing a tube amp...
  107. MJE350 pinout and ccs issue
  108. KGB- DC Coupled Hybrid Balance OTL/OCL HeadAmp
  109. negative voltage doubler for ccs
  110. Loftin-White
  111. SET amp from 1619 driving a 809. Opinion wanted.
  112. Re:preamp sputtering noise
  113. Building an ECL82 Single Ended Amp ...
  114. help a newbie build his first tube project
  115. Mercury Vapour rectifiers
  116. El Cheapo Circlotron PSU question....
  117. lookin for a tube buffer
  118. Baby SET w/6FD7 and ilk, for Bas and others....
  119. py500A question
  120. Mundorf Silver-oil VS Jensen copper foil
  121. Can you run a Fender Twin Reverb with only two 6L6's?
  122. Drawing Schematics for Tubes
  123. Drive Current for EL509 Enhanced Triode
  124. How to use Svetlana 6d22s?
  125. James Singapore
  126. Oil Filled Capacitor not upright OK?
  127. Aikido using a #26 tube?
  128. Tube and DIY Newbie Kel84 vs Stoetkit Jr.2
  129. ZOTL and ferrites
  130. 6V6 vs EL84 SE UL
  131. Speaker questions for a Silvertone 1472
  132. Component selection
  133. Snap sound on preamp powerup
  134. Secondary voltage for heaters
  135. good schematic archive site
  136. Transitional SIlvertoneAmp between 1472 and 1482?
  137. Cheap Source for Hammond 125ESE
  138. PCF801 - pentode section has remote or sharp cut-off?
  139. Tube as a desk lamp
  140. Ella EL34 Bias Help
  141. tube diy can or can t
  142. Quad II Problems
  143. Choke input P/supply and critical damping
  144. balanced grounded grid preamp
  145. Fluorescent ballasts in SE
  146. Hammond Transformers and EZ80/EZ81
  147. Look what I found this weekend!
  148. Question on 300B tubes from Parts Connexion
  149. Russian Tubes
  150. Help a first timer to select...
  151. GE 5692 BLACK base?
  152. sources on the web for chinese amps
  153. How much capacitance in a power supply
  154. Parallel 12AT7 for 2A3 driver?
  155. Maida's regulator
  156. Common Mode Chokes for Heater Supplies
  157. Ming Da MC34B....passive or active pre amp?
  158. tube power supply upgrade... elna's, RTX, infinicap
  159. What tube do you think this OPT matches?
  160. safety fuse
  161. Short and sweet review of Sun Audio SV-300BE
  162. Help selecting a DIY schematic
  163. OP Transformer power rating guesstimate
  164. need a lot help on an el34 project :P
  165. Anode Follower
  166. CCS for tubes/valves: PCBs
  167. Improvement to DM's Generic Triode Model for 12AU7
  168. ccs, direct coupling and stuff
  169. Replica Pre QUAD 22 - Questions on mids
  170. Is this cap ok for audio?
  171. Remote Controlled Stepped Attenuator
  172. UltraLinear in toroidal parafeed, my findings.
  173. Help to tame a 12AX7/6AQ5 circuit
  174. DIY something like iMPAMP??
  175. Have you seen this tester?
  176. Help with taming a 12AX7 and 6AQ5a amp
  177. Linear Technology 1083CP adjusting problem
  178. radiation tubes
  179. 813 socket dimensions
  180. Cheap SE output transformers
  181. BIAS and B+ caps WKZ or NH
  182. Cleaning tubes...
  183. Manfred Huber
  184. IEC standards, anywhere?
  185. possible volume and balance control - does this look like it will work well?
  186. EL84 Amp - Baby Huey
  187. 6X4
  188. What do you guys use for HV toggles?
  189. Balanced Operation Output Transformer Questions from N00b
  190. Static stain cleaning
  191. 12AX7 preamp project
  192. SE 1.5W OTL
  193. Cross-coupled NFB for PP Pentode
  194. Parallel triodes - CONS?
  195. output transformer spec questions
  196. Choosing Valve
  197. opinions wanted - Lafayette Stereo 224 Tube Amp
  198. New KT77 Tubes by JJ
  199. 60HL5?
  200. Standby switch
  201. Problems With Simple Gounded Cathode Gain Stage
  202. srpp 6c33c
  203. Mullard 5-20/Maplin 4-20 modification to NON-Ultra Linear mode????
  204. Anyone in gta know their tubes?
  205. 801 low power SE amp
  206. superalloy ( 78% nickel/2%cobalt) EI-66 with Furukawa ultimate wire.
  207. OPT resistance for EL84 PP Class A
  208. What’s in this amplifier?
  209. Whose logo?
  210. pentode phase splitter
  211. Is this EL84M UL PP OK?
  212. Tube preamp question...also, chassis layout
  213. Quad II Mods/Tweeks
  214. Trying to recreate a Fisher SA-16
  215. CCS, how it actually works?
  216. 400V CRC PS, what do I do with it?
  217. Does anyone has MILBERT BAM230 TUBE CAR POWER AMPLIFIER
  218. Valve sockets
  219. Can I use 12AT7?
  220. Music Reference RM5 mkIII
  221. Help: Sun Audio Kits where from? EIFL, ELEX, Sun Audio?
  222. Looking for a link on power supply design
  223. Is feedback required for UL EL84PP?
  224. Someone working on an insane tube project?
  225. Load line frustration
  226. Is 12B4/A good for differential pair?
  227. Heretical Unity Gain line stage PLUS a little gain ?
  228. tube vibration
  229. Small temp voltage on phono input-problem?
  230. What's it all about?
  231. IXYS GaAs Schottky Diodes.
  232. Maplin 4-20
  233. Line preamp using 2 ECC88 per channel
  234. What to use as a nice amp case?
  235. Signal Tube Longevity ?!?
  236. HK 250 power amp tube amp schematic
  237. Need help with connecting OPT.
  238. 6SL7 driving SE EL34 ?
  239. power supply tranny
  240. Output Transformer Background
  241. Schematic
  242. £¸£´£µ no dc passing the opt
  243. New preamp schematics
  244. Transformer ID & Specs Sheet Help
  245. I Know Some Tube Flavors Are Worth More Than Others...
  246. Why hybrid CCS?
  247. Alembic F-2B
  248. Best cap to cathode tube bypass is …..
  249. Cheap el84 se
  250. Bridge rectifier with capacitors???

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