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  1. GE 5692 BLACK base?
  2. sources on the web for chinese amps
  3. How much capacitance in a power supply
  4. Parallel 12AT7 for 2A3 driver?
  5. Maida's regulator
  6. Common Mode Chokes for Heater Supplies
  7. Ming Da MC34B....passive or active pre amp?
  8. tube power supply upgrade... elna's, RTX, infinicap
  9. What tube do you think this OPT matches?
  10. safety fuse
  11. Short and sweet review of Sun Audio SV-300BE
  12. Help selecting a DIY schematic
  13. OP Transformer power rating guesstimate
  14. need a lot help on an el34 project :P
  15. Anode Follower
  16. CCS for tubes/valves: PCBs
  17. Improvement to DM's Generic Triode Model for 12AU7
  18. ccs, direct coupling and stuff
  19. Replica Pre QUAD 22 - Questions on mids
  20. Is this cap ok for audio?
  21. Remote Controlled Stepped Attenuator
  22. UltraLinear in toroidal parafeed, my findings.
  23. Help to tame a 12AX7/6AQ5 circuit
  24. DIY something like iMPAMP??
  25. Have you seen this tester?
  26. Help with taming a 12AX7 and 6AQ5a amp
  27. Linear Technology 1083CP adjusting problem
  28. radiation tubes
  29. 813 socket dimensions
  30. Cheap SE output transformers
  31. BIAS and B+ caps WKZ or NH
  32. Cleaning tubes...
  33. Manfred Huber
  34. IEC standards, anywhere?
  35. possible volume and balance control - does this look like it will work well?
  36. EL84 Amp - Baby Huey
  37. 6X4
  38. What do you guys use for HV toggles?
  39. Balanced Operation Output Transformer Questions from N00b
  40. Static stain cleaning
  41. 12AX7 preamp project
  42. SE 1.5W OTL
  43. Cross-coupled NFB for PP Pentode
  44. Parallel triodes - CONS?
  45. output transformer spec questions
  46. Choosing Valve
  47. opinions wanted - Lafayette Stereo 224 Tube Amp
  48. New KT77 Tubes by JJ
  49. 60HL5?
  50. Standby switch
  51. Problems With Simple Gounded Cathode Gain Stage
  52. srpp 6c33c
  53. Mullard 5-20/Maplin 4-20 modification to NON-Ultra Linear mode????
  54. Anyone in gta know their tubes?
  55. 801 low power SE amp
  56. superalloy ( 78% nickel/2%cobalt) EI-66 with Furukawa ultimate wire.
  57. OPT resistance for EL84 PP Class A
  58. Whats in this amplifier?
  59. Whose logo?
  60. pentode phase splitter
  61. Is this EL84M UL PP OK?
  62. Tube preamp question...also, chassis layout
  63. Quad II Mods/Tweeks
  64. Trying to recreate a Fisher SA-16
  65. CCS, how it actually works?
  66. 400V CRC PS, what do I do with it?
  67. Does anyone has MILBERT BAM230 TUBE CAR POWER AMPLIFIER
  68. Valve sockets
  69. Can I use 12AT7?
  70. Music Reference RM5 mkIII
  71. Help: Sun Audio Kits where from? EIFL, ELEX, Sun Audio?
  72. Looking for a link on power supply design
  73. Is feedback required for UL EL84PP?
  74. Someone working on an insane tube project?
  75. Load line frustration
  76. Is 12B4/A good for differential pair?
  77. Heretical Unity Gain line stage PLUS a little gain ?
  78. tube vibration
  79. Small temp voltage on phono input-problem?
  80. What's it all about?
  81. IXYS GaAs Schottky Diodes.
  82. Maplin 4-20
  83. Line preamp using 2 ECC88 per channel
  84. What to use as a nice amp case?
  85. Signal Tube Longevity ?!?
  86. HK 250 power amp tube amp schematic
  87. Need help with connecting OPT.
  88. 6SL7 driving SE EL34 ?
  89. power supply tranny
  90. Output Transformer Background
  91. Schematic
  92. no dc passing the opt
  93. New preamp schematics
  94. Transformer ID & Specs Sheet Help
  95. I Know Some Tube Flavors Are Worth More Than Others...
  96. Why hybrid CCS?
  97. Alembic F-2B
  98. Best cap to cathode tube bypass is ..
  99. Cheap el84 se
  100. Bridge rectifier with capacitors???
  101. 4 volt (dc?) heater from 6.3v
  102. Does anyone recognise this valve amp
  103. PS Capacitor Voltage Rating
  104. Which 6SN7 preamp should I build?
  105. Help on upgrading my Tube Preamp
  106. looking for a non-copyrighted preamp schematic
  107. Problems with cathodyne
  108. more gain needed -> how?
  109. OT: Tribute to Kondo-San
  110. PCL82 SE Tube Amplifier Kit
  111. Rectifier voltage difference, Why?
  112. partial feedback stuff
  113. replace 5y3
  114. Sparking Tubes!
  115. Transformer End Bells
  116. DHT Ultrapath Linestage schematic help
  117. Who manufactured are these EL34's?
  118. Tubes and RoHS compliance?
  119. What do you think about this tube preamp?
  120. What's Ra?
  121. Screen grid resistors
  122. Miller compensation - pros/cons?
  123. G. Kaufman's 6GV8/ECL85 regulated psu
  124. 6CA4/EZ81 heater bias
  125. First stab with PSD for 6CK4 amp-what have I got here?
  126. 81 Rectifier
  127. using 40 VDC supply?
  128. Choke current
  129. Why two diodes per branch on a full wave rectifier?
  130. Alps attenuators
  131. Seeking quality PP pre/mono power project (long)
  132. Transformer location
  133. proper choke placement
  134. 6HE5 as output pentode?
  135. A possible good source for steel chassis
  136. Update on DIY 7591 PP bias cap issue!
  137. 832, can you go SE with these?
  138. PX25 SE without NFB
  139. Change my 8417's Quicksilvers to this?
  140. SE EL84 circuit for bi-amp setup?
  141. CLCLC PSU for 6P14P-EV PP
  142. Shielding a Power Tranny
  143. Unison Research Schema Needed
  144. My 2A3 schematic, comments please.
  145. What happend to the PHOTO GALLERY ?
  146. Valve pre-amp maintenance and purchase
  147. sound of 45 v. 205d v. 2a3 v. 300b for headphones
  148. TPAD Devices Kit
  149. Need Help. Anyone with Philips AG 9016??
  150. Question about input sensitivity?
  151. Any help on sth probably simple?
  152. few questions about my amp, pls come in
  153. 7591 Spice Model ?...Anyone ?... I'm Groveling Over Here !
  154. Need regulated solid state PSU
  155. EC31 - Any Datasheet...?
  156. comments on www.shinrock.com???
  157. need schematic reading help
  158. Sound from dummy load?
  159. Loftin-White
  160. RCA 151 'scope
  161. Coupling cap. values???
  162. stepped attenuator
  163. Ideas for input/driver stage of 300B amp
  164. Schematics for Bogen MXM-A Mixer?
  165. yet another which cap is best for the money question
  166. Lowering the value of the lead resistor
  167. power supply recommendation for EL84 amp
  168. Can ECC40 be used in a phono stage?
  169. Better current source than LM317 on a 12B4 line amp
  170. Bias and max current for my 7591 AB amp...
  171. Making sense of the Aikido calculations?
  172. Computer Grade Capacitors
  173. Pls recommend a power amp to build?
  174. Advice about this 45 amp
  175. Any definitive infor on R-C parafeed out there?
  176. 6AS7 as rectifier tube?
  177. Pre Amps
  178. 12 volt preamp
  179. JE LAB's 2001 2A3 & Preamp???
  180. 12AX7WA
  181. found DIY amp - now what?
  182. Magic Eye spectrum analyzer
  183. Tube Companies
  184. B+ from GZ34 Heater CT ?
  185. Unknown mA on Gardners mains transformer
  186. PSU Question
  187. how to mount rca jacks and volume control in wood enclosure?
  188. Freaky Whistle in Guitar Amp
  189. Giaime's last nightmare - aka RIAA faceoff
  190. 5687 dc 5687 tube amp need help
  191. Input cap needed
  192. 6BQ5\EL84 line amp
  193. Capacitor Values Why so high? & What can I do?
  194. Bias pot question
  195. What I have: 4 Tubes. What I need...
  196. let me fix this bias
  197. A small no-fuss pentode/pentode SE amp
  198. Bleeder Resistor Placement
  199. Modifying Heathkit AA 151
  200. Interstage transformer for PI.
  201. Motorrun caps ... GND side?
  202. mono center channel out to stereo
  203. Audio Research REF 2 MkII
  204. 717a plate volts
  205. valve preamp criticisms?
  206. LOT of tubes. what can I do?
  207. substitution for 7355
  208. KT88 heaters
  209. Software for drawing tube schematics?
  210. Guitar Amp HUUUM with an MP3! Reverb Problem
  211. New books posted
  212. Compound bias
  213. Tube Oscillation or Microphonic Question
  214. WTB:OT for el 34 35 watt tube amplifier
  215. Questions on 6H30 simple PF?
  216. "Super Davohm" 1w .1% wirewound
  217. Heathkit AA-100
  218. 6159 for SE Power amp
  219. Do SMPS have a home at high end audio?
  220. Kofi Annan in: "300beee!" or "Kofi Gets a Toy"
  221. cathode capacitance on anode follower
  222. looking for a building shematic for ECLL800
  223. Iron learning.
  224. Tube Amp - Crackling Sound on Left Channel
  225. Pspice preamp simulation
  226. Supply voltage for 12v6 12B4 heaters
  227. Studio Tube Preamp
  228. New project and my first circuit...
  229. Champ clone fried my soundcard
  230. Choke coupled phase invertor
  231. long cable line drive
  232. What To Do?
  233. Simple Method To Measure Source Resistance?
  234. is this true????
  235. query on the PSU of a preamp
  236. Meshplate Help needed
  237. 6072 tube preamplifier.
  238. hybrid rectifiers and PIV rating
  239. transformerless amp help plz ...
  240. Help me build a tube MIC preamp plz
  241. chinese 845 amp blowing fuses
  242. Question about PIV rating of diodes...
  243. Triode strapped heptode?
  244. The Fisher 500C/800C Challenge (long..dialup warning)
  245. 5 wire output transformer
  246. Orcad & tube library
  247. Wall Wart Tube Power
  248. How can I lower B+ of power supply?
  249. How do you put a CCS under a diff. pair of DHTs???
  250. Just need to make sure.

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