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

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