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  1. Vacuum Tube Pre O.C.L.
  2. Why no single triode OTL power stages?
  3. 6922 .2 sections in parallel
  4. Pre-amp input remote control
  5. Any benefit to DC heater on parallel supply rectifier (GZ34)?
  6. Relpacing 6EU7s with 12AX7s - Good idea?
  7. These Valves good for anything?
  8. buzz problem
  9. Help with trafo
  10. Svetlana EL509 III tubes
  11. Noise on Aikido output
  12. Book “Single Ended Amplifiers” by John (not Gordon) Rankin
  13. EV4417 6CM5 (6x) P-P Amp Schematic
  14. Need recommendation for cathode bypass cap
  15. Simplest flea-powered amp?
  16. Decisions, Decisions - Help me select iron
  17. 966 mercury vapor rectifier
  18. Sound Practices CDs
  19. Question about DIY EL34PP amp
  20. noisy noisy noisy noisy noisy tube
  21. Help needed lowering B+ for DIY amp
  22. 6SN7 CCS
  23. Russian 6L6 family sketchy?
  24. HT regulator using 78xx
  25. Audio Research CA50
  26. Granite tiles
  27. SE Triode amp for a newbie
  28. tube is flashing and glowing very bright!
  29. Suggestions for another amplifier project.
  30. almost just another newbie thread...
  31. ts9 pt9 triode
  32. help Etude 124BA keep blowing fuse.
  33. Metal 6L6s?
  34. Hybrid amplifier help...
  35. Tube input and mosfet output
  36. musical fidelity f22 schematic wanted
  37. An intriguing 300B SE-direct-coupled-amplifier
  38. Output capacitor
  39. Cascoded Long Tail Pair Inferno!
  40. Tube ornamental rim
  41. What should be mod first in my amp
  42. EL504/PL504 spice model
  43. Long Tail Pair Phase Inverter with Penthode ?
  44. new spice models available
  45. Output Capacitor Value
  46. Popular tube websites notifier
  47. Convergent Preamplifier Schematich
  48. Source of tubes & associated stuff in Sydney?
  49. Projects involving EF50 tubes?
  50. Kt77?
  51. Best way to translate schematic into actual layout?
  52. Clean to breakup range
  53. 26 preamp problem
  54. mono tube microphone preamp
  55. Help designing a tube amp...
  56. MJE350 pinout and ccs issue
  57. KGB- DC Coupled Hybrid Balance OTL/OCL HeadAmp
  58. negative voltage doubler for ccs
  59. Loftin-White
  60. SET amp from 1619 driving a 809. Opinion wanted.
  61. Re:preamp sputtering noise
  62. Building an ECL82 Single Ended Amp ...
  63. help a newbie build his first tube project
  64. Mercury Vapour rectifiers
  65. El Cheapo Circlotron PSU question....
  66. lookin for a tube buffer
  67. Baby SET w/6FD7 and ilk, for Bas and others....
  68. py500A question
  69. Mundorf Silver-oil VS Jensen copper foil
  70. Drawing Schematics for Tubes
  71. Drive Current for EL509 Enhanced Triode
  72. How to use Svetlana 6d22s?
  73. James Singapore
  74. Aikido using a #26 tube?
  75. Tube and DIY Newbie Kel84 vs Stoetkit Jr.2
  76. ZOTL and ferrites
  77. 6V6 vs EL84 SE UL
  78. Component selection
  79. Snap sound on preamp powerup
  80. Secondary voltage for heaters
  81. good schematic archive site
  82. Transitional SIlvertoneAmp between 1472 and 1482?
  83. Cheap Source for Hammond 125ESE
  84. PCF801 - pentode section has remote or sharp cut-off?
  85. Tube as a desk lamp
  86. Ella EL34 Bias Help
  87. tube diy can or can t
  88. Quad II Problems
  89. Choke input P/supply and critical damping
  90. balanced grounded grid preamp
  91. Fluorescent ballasts in SE
  92. Hammond Transformers and EZ80/EZ81
  93. Look what I found this weekend!
  94. Question on 300B tubes from Parts Connexion
  95. Russian Tubes
  96. Help a first timer to select...
  97. GE 5692 BLACK base?
  98. sources on the web for chinese amps
  99. How much capacitance in a power supply
  100. Parallel 12AT7 for 2A3 driver?
  101. Maida's regulator
  102. Common Mode Chokes for Heater Supplies
  103. Ming Da MC34B....passive or active pre amp?
  104. tube power supply upgrade... elna's, RTX, infinicap
  105. What tube do you think this OPT matches?
  106. safety fuse
  107. Short and sweet review of Sun Audio SV-300BE
  108. Help selecting a DIY schematic
  109. OP Transformer power rating guesstimate
  110. need a lot help on an el34 project :P
  111. Anode Follower
  112. CCS for tubes/valves: PCBs
  113. Improvement to DM's Generic Triode Model for 12AU7
  114. ccs, direct coupling and stuff
  115. Replica Pre QUAD 22 - Questions on mids
  116. Is this cap ok for audio?
  117. Remote Controlled Stepped Attenuator
  118. UltraLinear in toroidal parafeed, my findings.
  119. Help to tame a 12AX7/6AQ5 circuit
  120. DIY something like iMPAMP??
  121. Have you seen this tester?
  122. Help with taming a 12AX7 and 6AQ5a amp
  123. Linear Technology 1083CP adjusting problem
  124. radiation tubes
  125. 813 socket dimensions
  126. Cheap SE output transformers
  127. BIAS and B+ caps WKZ or NH
  128. Cleaning tubes...
  129. Manfred Huber
  130. IEC standards, anywhere?
  131. possible volume and balance control - does this look like it will work well?
  132. EL84 Amp - Baby Huey
  133. 6X4
  134. What do you guys use for HV toggles?
  135. Balanced Operation Output Transformer Questions from N00b
  136. Static stain cleaning
  137. 12AX7 preamp project
  138. SE 1.5W OTL
  139. Cross-coupled NFB for PP Pentode
  140. Parallel triodes - CONS?
  141. output transformer spec questions
  142. Choosing Valve
  143. opinions wanted - Lafayette Stereo 224 Tube Amp
  144. New KT77 Tubes by JJ
  145. 60HL5?
  146. Standby switch
  147. Problems With Simple Gounded Cathode Gain Stage
  148. srpp 6c33c
  149. Mullard 5-20/Maplin 4-20 modification to NON-Ultra Linear mode????
  150. Anyone in gta know their tubes?
  151. 801 low power SE amp
  152. superalloy ( 78% nickel/2%cobalt) EI-66 with Furukawa ultimate wire.
  153. OPT resistance for EL84 PP Class A
  154. What’s in this amplifier?
  155. Whose logo?
  156. pentode phase splitter
  157. Is this EL84M UL PP OK?
  158. Tube preamp question...also, chassis layout
  159. Quad II Mods/Tweeks
  160. Trying to recreate a Fisher SA-16
  161. CCS, how it actually works?
  162. 400V CRC PS, what do I do with it?
  163. Does anyone has Milbert BAM230 tube car power amplifier
  164. Valve sockets
  165. Can I use 12AT7?
  166. Music Reference RM5 mkIII
  167. Help: Sun Audio Kits where from? EIFL, ELEX, Sun Audio?
  168. Looking for a link on power supply design
  169. Is feedback required for UL EL84PP?
  170. Someone working on an insane tube project?
  171. Load line frustration
  172. Is 12B4/A good for differential pair?
  173. Heretical Unity Gain line stage PLUS a little gain ?
  174. tube vibration
  175. Small temp voltage on phono input-problem?
  176. What's it all about?
  177. IXYS GaAs Schottky Diodes.
  178. Maplin 4-20
  179. Line preamp using 2 ECC88 per channel
  180. What to use as a nice amp case?
  181. Signal Tube Longevity ?!?
  182. HK 250 power amp tube amp schematic
  183. Need help with connecting OPT.
  184. 6SL7 driving SE EL34 ?
  185. power supply tranny
  186. Output Transformer Background
  187. Schematic
  188. £¸£´£µ no dc passing the opt
  189. New preamp schematics
  190. Transformer ID & Specs Sheet Help
  191. I Know Some Tube Flavors Are Worth More Than Others...
  192. Why hybrid CCS?
  193. Best cap to cathode tube bypass is …..
  194. Cheap el84 se
  195. Bridge rectifier with capacitors???
  196. 4 volt (dc?) heater from 6.3v
  197. Does anyone recognise this valve amp
  198. Which 6SN7 preamp should I build?
  199. Help on upgrading my Tube Preamp
  200. looking for a non-copyrighted preamp schematic
  201. Problems with cathodyne
  202. more gain needed -> how?
  203. OT: Tribute to Kondo-San
  204. PCL82 SE Tube Amplifier Kit
  205. Rectifier voltage difference, Why?
  206. partial feedback stuff
  207. replace 5y3
  208. Sparking Tubes!
  209. Transformer End Bells
  210. DHT Ultrapath Linestage schematic help
  211. Who manufactured are these EL34's?
  212. Tubes and RoHS compliance?
  213. What do you think about this tube preamp?
  214. What's Ra?
  215. Screen grid resistors
  216. Miller compensation - pros/cons?
  217. G. Kaufman's 6GV8/ECL85 regulated psu
  218. 6CA4/EZ81 heater bias
  219. First stab with PSD for 6CK4 amp-what have I got here?
  220. 81 Rectifier
  221. using 40 VDC supply?
  222. Choke current
  223. Why two diodes per branch on a full wave rectifier?
  224. Alps attenuators
  225. Seeking quality PP pre/mono power project (long)
  226. Transformer location
  227. proper choke placement
  228. 6HE5 as output pentode?
  229. A possible good source for steel chassis
  230. Update on DIY 7591 PP bias cap issue!
  231. 832, can you go SE with these?
  232. PX25 SE without NFB
  233. Change my 8417's Quicksilvers to this?
  234. SE EL84 circuit for bi-amp setup?
  235. CLCLC PSU for 6P14P-EV PP
  236. Shielding a Power Tranny
  237. Unison Research Schema Needed
  238. My 2A3 schematic, comments please.
  239. What happend to the PHOTO GALLERY ?
  240. Valve pre-amp maintenance and purchase
  241. sound of 45 v. 205d v. 2a3 v. 300b for headphones
  242. TPAD Devices Kit
  243. Need Help. Anyone with Philips AG 9016??
  244. Question about input sensitivity?
  245. Any help on sth probably simple?
  246. few questions about my amp, pls come in
  247. 7591 Spice Model ?...Anyone ?... I'm Groveling Over Here !
  248. Need regulated solid state PSU
  249. EC31 - Any Datasheet...?
  250. comments on www.shinrock.com???

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