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  1. radiation tubes
  2. 813 socket dimensions
  3. Cheap SE output transformers
  4. BIAS and B+ caps WKZ or NH
  5. Cleaning tubes...
  6. Manfred Huber
  7. IEC standards, anywhere?
  8. possible volume and balance control - does this look like it will work well?
  9. EL84 Amp - Baby Huey
  10. 6X4
  11. What do you guys use for HV toggles?
  12. Balanced Operation Output Transformer Questions from N00b
  13. Static stain cleaning
  14. 12AX7 preamp project
  15. SE 1.5W OTL
  16. Cross-coupled NFB for PP Pentode
  17. Parallel triodes - CONS?
  18. output transformer spec questions
  19. Choosing Valve
  20. opinions wanted - Lafayette Stereo 224 Tube Amp
  21. New KT77 Tubes by JJ
  22. 60HL5?
  23. Standby switch
  24. Problems With Simple Gounded Cathode Gain Stage
  25. srpp 6c33c
  26. Mullard 5-20/Maplin 4-20 modification to NON-Ultra Linear mode????
  27. Anyone in gta know their tubes?
  28. 801 low power SE amp
  29. superalloy ( 78% nickel/2%cobalt) EI-66 with Furukawa ultimate wire.
  30. OPT resistance for EL84 PP Class A
  31. Whats in this amplifier?
  32. Whose logo?
  33. pentode phase splitter
  34. Is this EL84M UL PP OK?
  35. Tube preamp question...also, chassis layout
  36. Quad II Mods/Tweeks
  37. Trying to recreate a Fisher SA-16
  38. CCS, how it actually works?
  39. 400V CRC PS, what do I do with it?
  40. Does anyone has Milbert BAM230 tube car power amplifier
  41. Valve sockets
  42. Can I use 12AT7?
  43. Music Reference RM5 mkIII
  44. Help: Sun Audio Kits where from? EIFL, ELEX, Sun Audio?
  45. Looking for a link on power supply design
  46. Is feedback required for UL EL84PP?
  47. Someone working on an insane tube project?
  48. Load line frustration
  49. Is 12B4/A good for differential pair?
  50. Heretical Unity Gain line stage PLUS a little gain ?
  51. tube vibration
  52. Small temp voltage on phono input-problem?
  53. What's it all about?
  54. IXYS GaAs Schottky Diodes.
  55. Maplin 4-20
  56. Line preamp using 2 ECC88 per channel
  57. What to use as a nice amp case?
  58. Signal Tube Longevity ?!?
  59. HK 250 power amp tube amp schematic
  60. Need help with connecting OPT.
  61. 6SL7 driving SE EL34 ?
  62. power supply tranny
  63. Output Transformer Background
  64. Schematic
  65. no dc passing the opt
  66. New preamp schematics
  67. Transformer ID & Specs Sheet Help
  68. I Know Some Tube Flavors Are Worth More Than Others...
  69. Why hybrid CCS?
  70. Best cap to cathode tube bypass is ..
  71. Cheap el84 se
  72. Bridge rectifier with capacitors???
  73. 4 volt (dc?) heater from 6.3v
  74. Does anyone recognise this valve amp
  75. Which 6SN7 preamp should I build?
  76. Help on upgrading my Tube Preamp
  77. looking for a non-copyrighted preamp schematic
  78. Problems with cathodyne
  79. more gain needed -> how?
  80. OT: Tribute to Kondo-San
  81. PCL82 SE Tube Amplifier Kit
  82. Rectifier voltage difference, Why?
  83. partial feedback stuff
  84. replace 5y3
  85. Sparking Tubes!
  86. Transformer End Bells
  87. DHT Ultrapath Linestage schematic help
  88. Who manufactured are these EL34's?
  89. Tubes and RoHS compliance?
  90. What do you think about this tube preamp?
  91. What's Ra?
  92. Screen grid resistors
  93. Miller compensation - pros/cons?
  94. G. Kaufman's 6GV8/ECL85 regulated psu
  95. 6CA4/EZ81 heater bias
  96. First stab with PSD for 6CK4 amp-what have I got here?
  97. 81 Rectifier
  98. using 40 VDC supply?
  99. Choke current
  100. Why two diodes per branch on a full wave rectifier?
  101. Alps attenuators
  102. Seeking quality PP pre/mono power project (long)
  103. Transformer location
  104. proper choke placement
  105. 6HE5 as output pentode?
  106. A possible good source for steel chassis
  107. Update on DIY 7591 PP bias cap issue!
  108. 832, can you go SE with these?
  109. PX25 SE without NFB
  110. Change my 8417's Quicksilvers to this?
  111. SE EL84 circuit for bi-amp setup?
  112. CLCLC PSU for 6P14P-EV PP
  113. Shielding a Power Tranny
  114. Unison Research Schema Needed
  115. My 2A3 schematic, comments please.
  116. What happend to the PHOTO GALLERY ?
  117. Valve pre-amp maintenance and purchase
  118. sound of 45 v. 205d v. 2a3 v. 300b for headphones
  119. TPAD Devices Kit
  120. Need Help. Anyone with Philips AG 9016??
  121. Question about input sensitivity?
  122. Any help on sth probably simple?
  123. few questions about my amp, pls come in
  124. 7591 Spice Model ?...Anyone ?... I'm Groveling Over Here !
  125. Need regulated solid state PSU
  126. EC31 - Any Datasheet...?
  127. comments on www.shinrock.com???
  128. need schematic reading help
  129. Sound from dummy load?
  130. Loftin-White
  131. RCA 151 'scope
  132. Coupling cap. values???
  133. stepped attenuator
  134. Ideas for input/driver stage of 300B amp
  135. Schematics for Bogen MXM-A Mixer?
  136. yet another which cap is best for the money question
  137. Lowering the value of the lead resistor
  138. power supply recommendation for EL84 amp
  139. Can ECC40 be used in a phono stage?
  140. Better current source than LM317 on a 12B4 line amp
  141. Bias and max current for my 7591 AB amp...
  142. Making sense of the Aikido calculations?
  143. Computer Grade Capacitors
  144. Pls recommend a power amp to build?
  145. Advice about this 45 amp
  146. Any definitive infor on R-C parafeed out there?
  147. 6AS7 as rectifier tube?
  148. Pre Amps
  149. 12 volt preamp
  150. JE LAB's 2001 2A3 & Preamp???
  151. 12AX7WA
  152. found DIY amp - now what?
  153. Magic Eye spectrum analyzer
  154. Tube Companies
  155. B+ from GZ34 Heater CT ?
  156. Unknown mA on Gardners mains transformer
  157. PSU Question
  158. how to mount rca jacks and volume control in wood enclosure?
  159. Giaime's last nightmare - aka RIAA faceoff
  160. 5687 dc 5687 tube amp need help
  161. Input cap needed
  162. 6BQ5\EL84 line amp
  163. Capacitor Values Why so high? & What can I do?
  164. Bias pot question
  165. What I have: 4 Tubes. What I need...
  166. let me fix this bias
  167. A small no-fuss pentode/pentode SE amp
  168. Bleeder Resistor Placement
  169. Modifying Heathkit AA 151
  170. Interstage transformer for PI.
  171. mono center channel out to stereo
  172. Audio Research REF 2 MkII
  173. 717a plate volts
  174. valve preamp criticisms?
  175. LOT of tubes. what can I do?
  176. substitution for 7355
  177. KT88 heaters
  178. Software for drawing tube schematics?
  179. New books posted
  180. Compound bias
  181. Tube Oscillation or Microphonic Question
  182. WTB:OT for el 34 35 watt tube amplifier
  183. Questions on 6H30 simple PF?
  184. "Super Davohm" 1w .1% wirewound
  185. Heathkit AA-100
  186. 6159 for SE Power amp
  187. Do SMPS have a home at high end audio?
  188. Kofi Annan in: "300beee!" or "Kofi Gets a Toy"
  189. cathode capacitance on anode follower
  190. looking for a building shematic for ECLL800
  191. Iron learning.
  192. Tube Amp - Crackling Sound on Left Channel
  193. Pspice preamp simulation
  194. Supply voltage for 12v6 12B4 heaters
  195. New project and my first circuit...
  196. Choke coupled phase invertor
  197. long cable line drive
  198. What To Do?
  199. Simple Method To Measure Source Resistance?
  200. is this true????
  201. query on the PSU of a preamp
  202. Meshplate Help needed
  203. 6072 tube preamplifier.
  204. hybrid rectifiers and PIV rating
  205. transformerless amp help plz ...
  206. Help me build a tube MIC preamp plz
  207. chinese 845 amp blowing fuses
  208. Question about PIV rating of diodes...
  209. Triode strapped heptode?
  210. The Fisher 500C/800C Challenge (long..dialup warning)
  211. 5 wire output transformer
  212. Orcad & tube library
  213. Wall Wart Tube Power
  214. How can I lower B+ of power supply?
  215. How do you put a CCS under a diff. pair of DHTs???
  216. Just need to make sure.
  217. restoring a marantz 7c
  218. What is Simplest and Best 6L6 PP circuit? (PK)
  219. Good DIY Transformer Article (in Thai)
  220. Tube Swapping Question
  221. Toroid choke question
  222. Pentode CCS for parafeed SEP??
  223. subminiature tube suggestion
  224. MQ431 or Triode's DynaClone
  225. Conrad Johnson MV 45 schematic help
  226. signal wiring
  227. NEW B Need Help on Output Tx Problem
  228. center tap of heater winding
  229. Dynaco Mk IV question
  230. Does this tube amp has enough cap
  231. Acrosound TO-330 output transformers
  232. PP transformer for SE use
  233. Holiday Time!
  234. another beginers first amp thread!
  235. Western Electric 374A
  236. Musen to Jikken 03/1997
  237. Please help me make a schematic
  238. Tips for Hakko 936-12
  239. AC or DC for 300b Heaters
  240. Two irons for PSU
  241. Which DHT for Line stage?
  242. Pye Mozart 10 amplifier
  243. I need a simple schematic with 6J1P tubes
  244. First tube project. Need advice.
  245. Sound Valves M-40 assistance
  246. Has anyone been keeping up on the 'New Sensor' Controversy?
  247. quad esl output transformer.
  248. penta labs?
  249. transformer links
  250. EL84 auto split

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