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  1. suitable preamp for a tube amp (kt88+12ax7)
  2. anyone know of a kit to make tube night light?
  3. Sprague capasitor id
  4. Question on Tango XE-20S
  5. 6SL7 diff pair - how to set up????
  6. Hwat should be the best driver for a 520V2 ?
  7. problem: half power on push-pull ?
  8. Screen voltage - standby cut (Roland Bolt 60)
  9. Triode Dick/FdeGrove 2A3 PP amplifier
  10. PSU for perusal
  11. Kt66 Gec Replica
  12. 6as7
  13. Please confirm my transformer math.
  14. Anything wrong with this design?
  15. Buffer Line Pre-Amp Power Tx
  16. Why filter in tube DAC?
  17. advances in tube amp design?
  18. How to determine grid leak current?
  19. dissimilar triode for White cathode follower?
  20. tube rectifier
  21. 6Vdc from 6,3Vac
  22. Computer Grade Cap or Inverter Grade Cap???
  23. Peculiar Sovtek EL34 bevaviour
  24. 5AS4 sub for 5U4
  25. Preamp hum again
  26. Modifying amp to accept different tubes (Newbie alert!)
  27. Quetion for Thorsten
  28. OPT axis
  29. Schematic Counterpoint SA3.1 and SA-9
  30. optimizing constant current heater supply
  31. Valve Art KT100
  32. baxandall tone control
  33. Kofi Annan in: "Brownin' Out!"
  34. strange tube
  35. Monarch SA-30 Schematic
  36. Power Supply for 300B Monoblock
  37. Matisse Line Amp
  38. Panel mounting on a woode case
  39. Hardware??
  40. another way to turn a pentode or tetrode into a triode
  41. 0Z4 as a rectifier?
  42. Unused HV windings on power transformer
  43. Mundorf M-Lytic and Silver-in-Oil Capacitors
  44. grainy preamp gain
  45. Need help with PS for 1626 "Darling" amp
  46. questions about power supply for 6l6 pp
  47. Proof that demagnetizing tubes works
  48. ECC88/5687/2A3 amp voltages
  49. What can I do with these? (tube and OPT question)
  50. Blowing fuses
  51. questions about transfo
  52. Common Cathode Resistor
  53. Why a Zobel network across OPT primary or secondary?
  54. Morgan Jones "Valve Amplifiers"
  55. Why?
  56. 833 push pull design help
  57. Lamm schematics
  58. Mu Followers -- ressources?
  59. Pennsylvania DIY's
  60. Interstage trans? Yes please!
  61. What's wrong with UL anyway ?
  62. SE amp like mcintosh ?
  63. 300b Push Pull Interstage Tsf
  64. amp stages...
  65. Heater supply recommendation for 6922?
  66. hi-end?
  67. Just a quicky
  68. Question on Mains Transformer
  69. Help! Who is the dirtributors of 6V4/EZ80 and 6H30/6N30?
  70. SE 6AS7 amp question
  71. Timed switch on B+ in power supply, good idea?
  72. Parts Sourcing
  73. Power Supply Question
  74. tube amp kits
  75. in search of a schematic
  76. heater wiring
  77. 5A/152M perfect driver? SPICE?
  78. 12AU7 -> 12BH7 Do I need to change Rp?
  79. Need help understanding transformer impedance ratios and impedance matching
  80. Audio schematics for GU50 ????
  81. 6sn7 & 6sn7GTB
  82. Tube amp schematic - any thoughts?
  83. tube distortion effect.
  84. tube rolling Blue Circle BC 21 preamp
  85. A sorry tale which will make you cry !!!
  86. Variac problems
  87. tubeamp project, weekend timekiller
  88. isolated supply grounding
  89. Car preamp with Aikido
  90. Audio Note M1 potentiometer question
  91. Beginner , tube kit suggestions please
  92. anyone ever used metalized polypropylene caps from Digi-key?
  93. Question on OPT
  94. Telefunken S80 Stereo ECL82 Amp- any comment?
  95. Active crossovers using Tubes
  96. 300BSE power amplifier circuit
  97. tube buffer using 12bz7
  98. "Complete" SE KT88
  99. Output Tube biasing for Toroidal Output Transformer
  100. Cardas Golden Capacitors
  101. Tube Buffer for CD-PRO2M (6922)
  102. Troubleshooting fuse blowing
  103. Billington valves and quallity
  104. Regulated PSU, your comments please.
  105. Change coupling cap from .47uf to 2.2uf
  106. RIAA Schematics?
  107. Line out for subwoofer in tube amps
  108. Feedback in IT coupled amps?
  109. Filemant Voltage
  110. DC compensated SE output transformer
  111. Winding an audio transformer
  112. Tube effects Loop Schematics... ?
  113. Scrap Heathkit W-5m for guitar amp?
  114. KT100...what's this ??
  115. Help measuring output impedience
  116. tubes
  117. Need PP KT-88 amp design and KT-88 for triode use?
  118. 7241 tube
  119. Max B+ for 807 UL?
  120. Fender amplifier.. burnt choke ??
  121. Problem with my Darling!
  122. Effect of cross-coupled "local" FB on plate load of previous stage
  123. wickedly awsome guitar amp
  124. DC coupled long tailed pairs
  125. I need an advice for these tubes..
  126. Anode Resistors on PPP Amps
  127. help with modifing a H/K A500 amp
  128. Damper Diode Musings
  129. Heater Question
  130. Push pull designs.
  131. Anybody heard about Tarzian Silicon Rectifier for Tube Rectifier Replacement?
  132. Voice of Music 555 phonograph
  133. Direct driving of GM70 by one ECL86 ???
  134. Bogen amp schematic
  135. 6336a
  136. Power transformer colors & wiring
  137. Stepped Attenuator and Selector Switch
  138. Music without speakers? Need help.
  139. el84 ultra linear datat sheet
  140. 2a3 layout
  141. Matisse Ref per amp
  142. Recommendations for Simple SET Amp Topologies
  143. HV power supply repair
  144. Grundig Model 3265U Restore?
  145. Valve Art EL 156!
  146. Classe A 6550 40W
  147. Lafayette Bypass Option
  148. Plate curves or Op Point for 6KN8?
  149. 12e1 sub for 807 ?
  150. Extremely low power and low loss transformers
  151. looking for power supply diagram SE 813 45 Watt
  152. How to make this 6C33C better??
  153. All octal 6AS7 PP amp is it possible?
  154. Toroids VS EI Transfomers
  155. Bias secrets for a HH Scott 233?!?
  156. new idea of DHT heater supply
  157. UL40-S2 schematic
  158. Eastern Audio transformers: any good?
  159. Tube monster amplifier
  160. Big pentode help!
  161. which one?
  162. system matching
  163. a 5ar4 problem
  164. coupling capacitor intermediate values
  165. Quicksilver Mono 60 upgrades
  166. Can anything be done
  167. OTL ECC88 amp
  168. Bridging Mono Blocks
  169. Cathode-coupled Phase Splitter Formula
  170. Drd 45, 300b
  171. SV572-30: Opinions?
  172. Poor man's transformer volume control?
  173. Output current of this CAT SL-1 schematic ?
  174. Fixed Bias Circuit for 300B
  175. want to build SE450TL
  176. Tubes lifetime and sound
  177. Heater supply problem?
  178. Lowering HV secondary on Power Transformer
  179. Van der Veen 70W tube Amp DIY
  180. 5751 for marantz 7 linestage
  181. To be or not to be, UL or quad?
  182. Tube Failure
  183. 12AX7 Compared!
  184. transformer case grounding
  185. pre/amplifier grounding
  186. First Time Amp
  187. 6ck4 pp amp
  188. JJ electros, any good?
  189. 6AQ5A guitar amp revisited
  190. fun with amps
  191. Newbie needs clarification
  192. looking for powerful Single Ended diagram.
  193. Power amp output newbie question
  194. SE ultralinear amplifier generate a lot of Odd harmonics ?
  195. Grounding Filament CT?
  196. one more 12B4A preamp
  197. 6V6PP -> 6L6 PP with triode connection.
  198. ? about powering a sub with a Fisher 30a mono amp.
  199. Will This Blow Up?
  200. Pin out conversion 6V6-6AQ5A
  201. 211
  202. Nice looking rectifier tubes help
  203. Stepped attenuator inquiry
  204. Designing a Phonostage with the S&B 10K LCR RIAA Module
  205. 211 tube
  206. The T-Rex SET Amplifier DIY project
  207. Strange Wiring in Bogen 6v6 PP
  208. 6AS7 amp schematics
  209. Blue glow confused :(
  210. 6V6 SE and Screen Grid Voltage
  211. 6BQ5 <-> 6V6 without socket job...Any Idea?
  212. Melbourne, Australia valve enthusiasts check in!
  213. HELP! Blown R + HIGH V!
  214. PCB Pad Layout for B9A Noval
  215. DIY tube amps - help??
  216. New home made S.E amps
  217. Amplifier Oscillation
  218. First project, need guidance
  219. Cap max value after 6X5GT/EZ35 rectifier?
  220. Any tube-heads in Scotland?
  221. Care and Feeding of Tube Pins / Sockets
  222. MFA Luminescence--need schematic
  223. Tube technology amplifier
  224. Transformer questions
  225. Siemens C3g headamp problem
  226. rca83 hash?
  227. Skyline SK-10 Amplifier info?
  228. Tube Stereo Consoles from Thrift Stores
  229. Aikido amp theoretical questions
  230. 6V6 Single and 12AT7 SRPP
  231. What 45 SET amp should I build?
  232. Ping. Burnedfingers...
  233. ? problem with www.ampwares.com ?
  234. Pentode spud...?
  235. Type 46 as voltage amplifier
  236. Tube compressor problem!
  237. Using the 83
  238. Organ amp project
  239. Any feedback on these trannies?
  240. 300B PP bias and expected life time
  241. Mono block restoration
  242. Question about cathode bypass capacitor
  243. www.diytube.com Kits
  244. need help!
  245. Need opinion on PS for tube preamp.
  246. Stanley Mullard
  247. 6AK4, Anyone?
  248. interstage transformer
  249. Are matched sets important for this amp?
  250. What to do with ECC88's?

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