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  1. Svetlana EL509 III tubes
  2. Noise on Aikido output
  3. Book “Single Ended Amplifiers” by John (not Gordon) Rankin
  4. EV4417 6CM5 (6x) P-P Amp Schematic
  5. Need recommendation for cathode bypass cap
  6. Simplest flea-powered amp?
  7. Decisions, Decisions - Help me select iron
  8. 966 mercury vapor rectifier
  9. Sound Practices CDs
  10. Question about DIY EL34PP amp
  11. noisy noisy noisy noisy noisy tube
  12. Help needed lowering B+ for DIY amp
  13. 6SN7 CCS
  14. Russian 6L6 family sketchy?
  15. HT regulator using 78xx
  16. Audio Research CA50
  17. Granite tiles
  18. SE Triode amp for a newbie
  19. tube is flashing and glowing very bright!
  20. Suggestions for another amplifier project.
  21. almost just another newbie thread...
  22. Bogen PA--->Guitar Amp, few questions
  23. ts9 pt9 triode
  24. help Etude 124BA keep blowing fuse.
  25. Metal 6L6s?
  26. Hybrid amplifier help...
  27. Tube input and mosfet output
  28. musical fidelity f22 schematic wanted
  29. An intriguing 300B SE-direct-coupled-amplifier
  30. Output capacitor
  31. Cascoded Long Tail Pair Inferno!
  32. Tube ornamental rim
  33. What should be mod first in my amp
  34. EL504/PL504 spice model
  35. Long Tail Pair Phase Inverter with Penthode ?
  36. new spice models available
  37. Output Capacitor Value
  38. Popular tube websites notifier
  39. Convergent Preamplifier Schematich
  40. Source of tubes & associated stuff in Sydney?
  41. Projects involving EF50 tubes?
  42. Kt77?
  43. Best way to translate schematic into actual layout?
  44. Clean to breakup range
  45. 26 preamp problem
  46. mono tube microphone preamp
  47. Help designing a tube amp...
  48. MJE350 pinout and ccs issue
  49. KGB- DC Coupled Hybrid Balance OTL/OCL HeadAmp
  50. negative voltage doubler for ccs
  51. Loftin-White
  52. SET amp from 1619 driving a 809. Opinion wanted.
  53. Re:preamp sputtering noise
  54. Building an ECL82 Single Ended Amp ...
  55. help a newbie build his first tube project
  56. Mercury Vapour rectifiers
  57. El Cheapo Circlotron PSU question....
  58. lookin for a tube buffer
  59. Baby SET w/6FD7 and ilk, for Bas and others....
  60. py500A question
  61. Mundorf Silver-oil VS Jensen copper foil
  62. Can you run a Fender Twin Reverb with only two 6L6's?
  63. Drawing Schematics for Tubes
  64. Drive Current for EL509 Enhanced Triode
  65. How to use Svetlana 6d22s?
  66. James Singapore
  67. Oil Filled Capacitor not upright OK?
  68. Aikido using a #26 tube?
  69. Tube and DIY Newbie Kel84 vs Stoetkit Jr.2
  70. ZOTL and ferrites
  71. 6V6 vs EL84 SE UL
  72. Speaker questions for a Silvertone 1472
  73. Component selection
  74. Snap sound on preamp powerup
  75. Secondary voltage for heaters
  76. good schematic archive site
  77. Transitional SIlvertoneAmp between 1472 and 1482?
  78. Cheap Source for Hammond 125ESE
  79. PCF801 - pentode section has remote or sharp cut-off?
  80. Tube as a desk lamp
  81. Ella EL34 Bias Help
  82. tube diy can or can t
  83. Quad II Problems
  84. Choke input P/supply and critical damping
  85. balanced grounded grid preamp
  86. Fluorescent ballasts in SE
  87. Hammond Transformers and EZ80/EZ81
  88. Look what I found this weekend!
  89. Question on 300B tubes from Parts Connexion
  90. Russian Tubes
  91. Help a first timer to select...
  92. GE 5692 BLACK base?
  93. sources on the web for chinese amps
  94. How much capacitance in a power supply
  95. Parallel 12AT7 for 2A3 driver?
  96. Maida's regulator
  97. Common Mode Chokes for Heater Supplies
  98. Ming Da MC34B....passive or active pre amp?
  99. tube power supply upgrade... elna's, RTX, infinicap
  100. What tube do you think this OPT matches?
  101. safety fuse
  102. Short and sweet review of Sun Audio SV-300BE
  103. Help selecting a DIY schematic
  104. OP Transformer power rating guesstimate
  105. need a lot help on an el34 project :P
  106. Anode Follower
  107. CCS for tubes/valves: PCBs
  108. Improvement to DM's Generic Triode Model for 12AU7
  109. ccs, direct coupling and stuff
  110. Replica Pre QUAD 22 - Questions on mids
  111. Is this cap ok for audio?
  112. Remote Controlled Stepped Attenuator
  113. UltraLinear in toroidal parafeed, my findings.
  114. Help to tame a 12AX7/6AQ5 circuit
  115. DIY something like iMPAMP??
  116. Have you seen this tester?
  117. Help with taming a 12AX7 and 6AQ5a amp
  118. Linear Technology 1083CP adjusting problem
  119. radiation tubes
  120. 813 socket dimensions
  121. Cheap SE output transformers
  122. BIAS and B+ caps WKZ or NH
  123. Cleaning tubes...
  124. Manfred Huber
  125. IEC standards, anywhere?
  126. possible volume and balance control - does this look like it will work well?
  127. EL84 Amp - Baby Huey
  128. 6X4
  129. What do you guys use for HV toggles?
  130. Balanced Operation Output Transformer Questions from N00b
  131. Static stain cleaning
  132. 12AX7 preamp project
  133. SE 1.5W OTL
  134. Cross-coupled NFB for PP Pentode
  135. Parallel triodes - CONS?
  136. output transformer spec questions
  137. Choosing Valve
  138. opinions wanted - Lafayette Stereo 224 Tube Amp
  139. New KT77 Tubes by JJ
  140. 60HL5?
  141. Standby switch
  142. Problems With Simple Gounded Cathode Gain Stage
  143. srpp 6c33c
  144. Mullard 5-20/Maplin 4-20 modification to NON-Ultra Linear mode????
  145. Anyone in gta know their tubes?
  146. 801 low power SE amp
  147. superalloy ( 78% nickel/2%cobalt) EI-66 with Furukawa ultimate wire.
  148. OPT resistance for EL84 PP Class A
  149. What’s in this amplifier?
  150. Whose logo?
  151. pentode phase splitter
  152. Is this EL84M UL PP OK?
  153. Tube preamp question...also, chassis layout
  154. Quad II Mods/Tweeks
  155. Trying to recreate a Fisher SA-16
  156. CCS, how it actually works?
  157. 400V CRC PS, what do I do with it?
  158. Does anyone has MILBERT BAM230 TUBE CAR POWER AMPLIFIER
  159. Valve sockets
  160. Can I use 12AT7?
  161. Music Reference RM5 mkIII
  162. Help: Sun Audio Kits where from? EIFL, ELEX, Sun Audio?
  163. Looking for a link on power supply design
  164. Is feedback required for UL EL84PP?
  165. Someone working on an insane tube project?
  166. Load line frustration
  167. Is 12B4/A good for differential pair?
  168. Heretical Unity Gain line stage PLUS a little gain ?
  169. tube vibration
  170. Small temp voltage on phono input-problem?
  171. What's it all about?
  172. IXYS GaAs Schottky Diodes.
  173. Maplin 4-20
  174. Line preamp using 2 ECC88 per channel
  175. What to use as a nice amp case?
  176. Signal Tube Longevity ?!?
  177. HK 250 power amp tube amp schematic
  178. Need help with connecting OPT.
  179. 6SL7 driving SE EL34 ?
  180. power supply tranny
  181. Output Transformer Background
  182. Schematic
  183. £¸£´£µ no dc passing the opt
  184. New preamp schematics
  185. Transformer ID & Specs Sheet Help
  186. I Know Some Tube Flavors Are Worth More Than Others...
  187. Why hybrid CCS?
  188. Alembic F-2B
  189. Best cap to cathode tube bypass is …..
  190. Cheap el84 se
  191. Bridge rectifier with capacitors???
  192. 4 volt (dc?) heater from 6.3v
  193. Does anyone recognise this valve amp
  194. PS Capacitor Voltage Rating
  195. Which 6SN7 preamp should I build?
  196. Help on upgrading my Tube Preamp
  197. looking for a non-copyrighted preamp schematic
  198. Problems with cathodyne
  199. more gain needed -> how?
  200. OT: Tribute to Kondo-San
  201. PCL82 SE Tube Amplifier Kit
  202. Rectifier voltage difference, Why?
  203. partial feedback stuff
  204. replace 5y3
  205. Sparking Tubes!
  206. Transformer End Bells
  207. DHT Ultrapath Linestage schematic help
  208. Who manufactured are these EL34's?
  209. Tubes and RoHS compliance?
  210. What do you think about this tube preamp?
  211. What's Ra?
  212. Screen grid resistors
  213. Miller compensation - pros/cons?
  214. G. Kaufman's 6GV8/ECL85 regulated psu
  215. 6CA4/EZ81 heater bias
  216. First stab with PSD for 6CK4 amp-what have I got here?
  217. 81 Rectifier
  218. using 40 VDC supply?
  219. Choke current
  220. Why two diodes per branch on a full wave rectifier?
  221. Alps attenuators
  222. Seeking quality PP pre/mono power project (long)
  223. Transformer location
  224. proper choke placement
  225. 6HE5 as output pentode?
  226. A possible good source for steel chassis
  227. Update on DIY 7591 PP bias cap issue!
  228. 832, can you go SE with these?
  229. PX25 SE without NFB
  230. Change my 8417's Quicksilvers to this?
  231. SE EL84 circuit for bi-amp setup?
  232. CLCLC PSU for 6P14P-EV PP
  233. Shielding a Power Tranny
  234. Unison Research Schema Needed
  235. My 2A3 schematic, comments please.
  236. What happend to the PHOTO GALLERY ?
  237. Valve pre-amp maintenance and purchase
  238. sound of 45 v. 205d v. 2a3 v. 300b for headphones
  239. TPAD Devices Kit
  240. Need Help. Anyone with Philips AG 9016??
  241. Question about input sensitivity?
  242. Any help on sth probably simple?
  243. few questions about my amp, pls come in
  244. 7591 Spice Model ?...Anyone ?... I'm Groveling Over Here !
  245. Need regulated solid state PSU
  246. EC31 - Any Datasheet...?
  247. comments on www.shinrock.com???
  248. need schematic reading help
  249. Sound from dummy load?
  250. Loftin-White