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  1. Mundorf M-Lytic and Silver-in-Oil Capacitors
  2. grainy preamp gain
  3. Need help with PS for 1626 "Darling" amp
  4. questions about power supply for 6l6 pp
  5. Proof that demagnetizing tubes works
  6. ECC88/5687/2A3 amp voltages
  7. What can I do with these? (tube and OPT question)
  8. Blowing fuses
  9. questions about transfo
  10. Common Cathode Resistor
  11. Why a Zobel network across OPT primary or secondary?
  12. Morgan Jones "Valve Amplifiers"
  13. Why?
  14. 833 push pull design help
  15. Lamm schematics
  16. Mu Followers -- ressources?
  17. Pennsylvania DIY's
  18. Interstage trans? Yes please!
  19. What's wrong with UL anyway ?
  20. SE amp like mcintosh ?
  21. 300b Push Pull Interstage Tsf
  22. amp stages...
  23. Heater supply recommendation for 6922?
  24. hi-end?
  25. Just a quicky
  26. Question on Mains Transformer
  27. Help! Who is the dirtributors of 6V4/EZ80 and 6H30/6N30?
  28. SE 6AS7 amp question
  29. Timed switch on B+ in power supply, good idea?
  30. Parts Sourcing
  31. Power Supply Question
  32. tube amp kits
  33. in search of a schematic
  34. heater wiring
  35. 5A/152M perfect driver? SPICE?
  36. 12AU7 -> 12BH7 Do I need to change Rp?
  37. Need help understanding transformer impedance ratios and impedance matching
  38. Audio schematics for GU50 ????
  39. 6sn7 & 6sn7GTB
  40. Tube amp schematic - any thoughts?
  41. tube distortion effect.
  42. tube rolling Blue Circle BC 21 preamp
  43. A sorry tale which will make you cry !!!
  44. Variac problems
  45. tubeamp project, weekend timekiller
  46. isolated supply grounding
  47. Car preamp with Aikido
  48. Audio Note M1 potentiometer question
  49. Beginner , tube kit suggestions please
  50. anyone ever used metalized polypropylene caps from Digi-key?
  51. Question on OPT
  52. Telefunken S80 Stereo ECL82 Amp- any comment?
  53. Active crossovers using Tubes
  54. 300BSE power amplifier circuit
  55. tube buffer using 12bz7
  56. "Complete" SE KT88
  57. Output Tube biasing for Toroidal Output Transformer
  58. Cardas Golden Capacitors
  59. Tube Buffer for CD-PRO2M (6922)
  60. Troubleshooting fuse blowing
  61. Billington valves and quallity
  62. Regulated PSU, your comments please.
  63. Change coupling cap from .47uf to 2.2uf
  64. RIAA Schematics?
  65. Line out for subwoofer in tube amps
  66. Feedback in IT coupled amps?
  67. Filemant Voltage
  68. DC compensated SE output transformer
  69. Winding an audio transformer
  70. Tube effects Loop Schematics... ?
  71. Scrap Heathkit W-5m for guitar amp?
  72. KT100...what's this ??
  73. Help measuring output impedience
  74. tubes
  75. Need PP KT-88 amp design and KT-88 for triode use?
  76. 7241 tube
  77. Max B+ for 807 UL?
  78. Fender amplifier.. burnt choke ??
  79. Problem with my Darling!
  80. Effect of cross-coupled "local" FB on plate load of previous stage
  81. wickedly awsome guitar amp
  82. DC coupled long tailed pairs
  83. I need an advice for these tubes..
  84. Anode Resistors on PPP Amps
  85. help with modifing a H/K A500 amp
  86. Damper Diode Musings
  87. Heater Question
  88. Push pull designs.
  89. Anybody heard about Tarzian Silicon Rectifier for Tube Rectifier Replacement?
  90. Voice of Music 555 phonograph
  91. Direct driving of GM70 by one ECL86 ???
  92. Bogen amp schematic
  93. 6336a
  94. Power transformer colors & wiring
  95. Stepped Attenuator and Selector Switch
  96. Music without speakers? Need help.
  97. el84 ultra linear datat sheet
  98. 2a3 layout
  99. Matisse Ref per amp
  100. Recommendations for Simple SET Amp Topologies
  101. HV power supply repair
  102. Grundig Model 3265U Restore?
  103. Valve Art EL 156!
  104. Classe A 6550 40W
  105. Lafayette Bypass Option
  106. Plate curves or Op Point for 6KN8?
  107. 12e1 sub for 807 ?
  108. Extremely low power and low loss transformers
  109. looking for power supply diagram SE 813 45 Watt
  110. How to make this 6C33C better??
  111. All octal 6AS7 PP amp is it possible?
  112. Toroids VS EI Transfomers
  113. Bias secrets for a HH Scott 233?!?
  114. new idea of DHT heater supply
  115. Eastern Audio transformers: any good?
  116. UL40-S2 schematic
  117. Tube monster amplifier
  118. Big pentode help!
  119. which one?
  120. system matching
  121. a 5ar4 problem
  122. coupling capacitor intermediate values
  123. Quicksilver Mono 60 upgrades
  124. Can anything be done
  125. OTL ECC88 amp
  126. Bridging Mono Blocks
  127. Cathode-coupled Phase Splitter Formula
  128. Drd 45, 300b
  129. SV572-30: Opinions?
  130. Poor man's transformer volume control?
  131. Output current of this CAT SL-1 schematic ?
  132. Fixed Bias Circuit for 300B
  133. want to build SE450TL
  134. Tubes lifetime and sound
  135. Heater supply problem?
  136. Lowering HV secondary on Power Transformer
  137. Van der Veen 70W tube Amp DIY
  138. 5751 for marantz 7 linestage
  139. To be or not to be, UL or quad?
  140. Tube Failure
  141. 12AX7 Compared!
  142. transformer case grounding
  143. pre/amplifier grounding
  144. First Time Amp
  145. 6ck4 pp amp
  146. JJ electros, any good?
  147. 6AQ5A guitar amp revisited
  148. fun with amps
  149. Newbie needs clarification
  150. looking for powerful Single Ended diagram.
  151. Power amp output newbie question
  152. SE ultralinear amplifier generate a lot of Odd harmonics ?
  153. Grounding Filament CT?
  154. one more 12B4A preamp
  155. 6V6PP -> 6L6 PP with triode connection.
  156. ? about powering a sub with a Fisher 30a mono amp.
  157. Will This Blow Up?
  158. Pin out conversion 6V6-6AQ5A
  159. 211
  160. Nice looking rectifier tubes help
  161. Stepped attenuator inquiry
  162. Designing a Phonostage with the S&B 10K LCR RIAA Module
  163. 211 tube
  164. The T-Rex SET Amplifier DIY project
  165. Strange Wiring in Bogen 6v6 PP
  166. 6AS7 amp schematics
  167. Blue glow confused :(
  168. 6V6 SE and Screen Grid Voltage
  169. 6BQ5 <-> 6V6 without socket job...Any Idea?
  170. Melbourne, Australia valve enthusiasts check in!
  171. HELP! Blown R + HIGH V!
  172. PCB Pad Layout for B9A Noval
  173. DIY tube amps - help??
  174. New home made S.E amps
  175. Amplifier Oscillation
  176. First project, need guidance
  177. Cap max value after 6X5GT/EZ35 rectifier?
  178. Any tube-heads in Scotland?
  179. Care and Feeding of Tube Pins / Sockets
  180. MFA Luminescence--need schematic
  181. Tube technology amplifier
  182. Transformer questions
  183. Siemens C3g headamp problem
  184. rca83 hash?
  185. Skyline SK-10 Amplifier info?
  186. Tube Stereo Consoles from Thrift Stores
  187. Aikido amp theoretical questions
  188. 6V6 Single and 12AT7 SRPP
  189. What 45 SET amp should I build?
  190. Ping. Burnedfingers...
  191. ? problem with www.ampwares.com ?
  192. Pentode spud...?
  193. Type 46 as voltage amplifier
  194. Tube compressor problem!
  195. Using the 83
  196. Organ amp project
  197. Any feedback on these trannies?
  198. 300B PP bias and expected life time
  199. Mono block restoration
  200. Question about cathode bypass capacitor
  201. www.diytube.com Kits
  202. need help!
  203. Need opinion on PS for tube preamp.
  204. Stanley Mullard
  205. 6AK4, Anyone?
  206. interstage transformer
  207. Are matched sets important for this amp?
  208. What to do with ECC88's?
  209. EL38's ?
  210. Cables/tubes for Valve Amp
  211. 8233 / E55L Applications
  212. amplimo budget outputtransformer
  213. Output Transformers for WE-437a WOT Line Preamp
  214. plate resistor, input lead
  215. KT88 PP with Class-A/Class-AB switch
  216. very loud preamp
  217. Pentode current sink
  218. Hammond vs. James?
  219. Tubes for Scott Nixon dac
  220. James SE OPT for 300B & 2A3 on eBay
  221. pre-amp with 6as7??
  222. pre-amp with voltage gain from transformer only
  223. Help! Mystery tube (?) amp (type: HK56)
  224. Regulate the high voltage making better sound? (Preamp)
  225. Power Transformer
  226. Potentiometers UK
  227. AC 120V, neutral, hot, ground
  228. Counterpoint SA-220 Tube section advice needed
  229. 807 Amp
  230. Help me to choose the adequate ferrites
  231. Looking for KT88 circuits.
  232. Building a power amp - help
  233. Sovtek EL34WXT.
  234. Microphonic
  235. preamp gain and output transformer question
  236. Would an s5 K-12M kit suffice?
  237. 6c45 and passive volume control?
  238. Something of Interest to Newbies
  239. Fender Output transformer as an audio amp part
  240. Chinese Tube Amp & DIY .. Pro & Con
  241. Franks Ultimate Preamp....
  242. Interstage Transformer Nomenclature
  243. PP or SE for Horns?
  244. Output transformer in SIMetrix?
  245. seampcad
  246. Looking for an amp project
  247. Unison Research Smart 845 schematics
  248. HELP - From the audiophile Heads - Amp Advice
  249. 8233, 8116 &amp; 6BZ6 valves - what are they good for?
  250. wires of output transformer are too thin!

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