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  1. Riviera 725 guitar tubes amp
  2. Best place to use 2 Jupiter Bee caps in tube amp?
  3. what rating for diode of 450Volts DC
  4. Telefunken 6L6GC ???????
  5. Why are my amps doing this?
  6. How to calculate the gain of an input-driver stage?
  7. 6L6 vs EL34
  8. protect your amps
  9. Snap Ring Octal Sockets
  10. Suitable operating point for 6SN7 as a differential driver ?
  11. Suitable rectifier
  12. 6N1P & SV83 mu stage driving 845?
  13. Has anyone built a transformer coupled preamp?
  14. Circuit diagram for RCA vintage 6BQ5 amplifier?
  15. Driver valve discussion
  16. Help to choose the tubes!
  17. Why hum in one channel only?
  18. DC heater noise WORSE than AC
  19. Rdh 4
  20. 900v B+ Silly time.
  21. tube rectifier arrangement
  22. Matrix Amp?
  23. Dynaco Stereo 70 amplifier
  24. Ultimate power switch?
  25. AC or DC current for 300B and 2A3 tube filaments ?
  26. 0.1uF @ 3000V Ceramic?
  27. Power Triodes in current production
  28. Anyone in the world identify eico trans?
  29. Mullard 5-20 in triode mode
  30. THX certification, or integrated near THX Quality,
  31. Feedback resistor on Baxandall tone stack?
  32. SE Pentode or PP Triode ?
  33. how does one "voice" a tube amp
  34. Musical fidelity Nu-Vista
  35. Tube substitutions in Heathkit W5M
  36. PSUD2 question
  37. 6L6 class A P-P CFB amp
  38. i have a matched pair of 3cx1000a7..
  39. Different silvering patterns on tube tops?
  40. Designing Guitar Amp's Project
  41. Help with amp rebuild
  42. Mystery (to me) phase inverter?
  43. Biasing
  44. SE KT88 Amp
  45. Good design?
  46. Auto Biasing
  47. nuvistor MC step up
  48. Corian for tube amp?
  49. 6AQ5 Line stage?
  50. 6550 o/p stage
  51. Help with finding preamp schematic
  52. AVO data for 8417 (Quicksilver) tubes
  53. Any experience with this nice toroidal OT?
  54. 300B SE cathode feedback to grid?
  55. hummmmmmm?
  56. ERO KP1832 Bypass Caps for sale
  57. no bass makes pedro a whiny boy
  58. Iron, glass, sand and lead.
  59. Is this any good? Considerations
  60. 2A3 SET Output Transformer opinions/recommendations
  61. My 6C45 DC 6C41, advice wanted
  62. DIY valve
  63. A good SE project?
  64. who will build me this special "line tubeamp"
  65. PI filters
  66. Designing a simple dc filament supply?
  67. Rogers Cadett amp
  68. HI & a few words/questions ...
  69. 6d22s
  70. eBay
  71. Chassis layout for Stereo JE Labs 300BDX
  72. Output transformer help
  73. CAD Program for Tubes
  74. 801A/816 tubes wanted
  75. This little thing might save your life!
  76. What happens if I loose the cathode bias?
  77. beginners ecl82 power supply
  78. 2MHz, High voltage source?
  79. beginner's ecl82
  80. Handmade Electronics Metal Punches?
  81. EL34 types
  82. Spice Model 6CW4
  83. El/pl 519
  84. Euridice symetric to Amp?
  85. use of 6dj8 as driver on a direct coupled 2a3 se amp
  86. Western Electric 275A Schematic
  87. Where to source 833 power tube
  88. capacitor reactance
  89. Overvoltaging resistors
  90. EL84 Push Pull amp.
  91. Power supply load capacity
  92. Tube preamp problem
  93. E88C (6DL4/ 8255), any circuit for it?
  94. Is there a name for this drive method?
  95. 6BM8 Question
  96. Tube mic preamp/mixer
  97. Please cast your votes..or make a suggestion or 2
  98. RIAA in LTspice
  99. Parallel ECC82 comment please
  100. A push-pull amp i can live with
  101. Sub-miniature russian amp help
  102. Tube Optical-Isolation Unit
  103. MKP in the Powersupply.
  104. 6SN7-GTB Globe (Chinese)
  105. 12BH7 Specs
  106. Is this worth my time?
  107. choke value
  108. ipod + tubes
  109. Leak tl/25+ OPT selection
  110. Gabevee's Maggie (MAG1515)
  111. Can partial feedback be as effective as global fb for decent damping factor?
  112. Which trans wire is which?
  113. What's wrong with this tube?
  114. F: great sound control with ECC82
  115. 30W UL 6L6P-P amp
  116. 300B stereo SE amp and PP2A3 monoblocks
  117. 6S45P matching
  118. Inductors made for crossover in an amp?
  119. PX4 or AVO44 or AV044 based SETA
  120. power conditioning
  121. Microphone preamp with compressor
  122. Current production rectifiers
  123. mu stage help...
  124. Non-Polar caps to cathode bypass
  125. 5u4 / solid state switchable supply
  126. 12AX7 sound ... going with the trend
  127. 6L6 PP Design Recommendations?
  128. EL 34 30W ultra linear
  129. Convert Audion Silver Knight PP monos
  130. Too much gain
  131. The long lost linear gain stage
  132. Philco power tranny diagram/5u4 supply
  133. Kt88 Se
  134. supersize me, please. (powersupply)
  135. Seeking advice on "Circlotron" cross-coupled feedback OTL design
  136. Best 6CA7?
  137. ECC99 line preamp
  138. coupling caps???
  139. variable regulated negitive grid supply
  140. hum loop advice
  141. Against all odds...
  142. 6as7 se amp
  143. Help .. tube amplifier .. 1st !
  144. winding a toroidal pp output
  145. solid state Vs Tube Rectification
  146. Cryoed Tubes...what To Expect?
  147. I'm looking for 6H13C tubes
  148. Which ST-70 ?
  149. Some questions about Van Scoyoc X-coupled splitter
  150. Quicksilver 8417 bias runaway?
  151. Most effective use of valve pre & active xover
  152. Tube possibilities for 2.9k-ohm speaker?
  153. Help on Preamp Mute Switch
  154. Fixed bias supply problems...
  155. Help with VTL preamp...
  156. question about 811A and 572B
  157. Dual Stereo Cathode Folower Setup
  158. tube tester
  159. Audio Innovation 1000 SE
  160. 6as7 PP Schematic Help
  161. Newbie Question: Need help diagnosing a problem, tubes on, music fades out quickly
  162. 7591EH failure
  163. opt frequency response
  164. Anyone got any opinions on this?
  165. My ForePlay Processor Controlled Preamp
  166. Tube ghetto blaster ?
  167. Help trouble shooting
  168. "The Fisher" tube amp 7189 output tubes
  169. UTC output transformers specs
  170. Regulation options for 807 g2
  171. My Mullard 5/20
  172. Anyone tried Black Beauty caps??
  173. KT88 power amp
  174. High voltage regulator
  175. Filament voltage ?
  176. Unity Gain Unbalanced to Balanced Phase Splitter
  177. Anyone know the g1-g2 capacitance of 6AU6?
  178. Any good Transformer or Tube manufactureres in India ?
  179. McMartin MA-20?
  180. Help with Jolida 302A
  181. need 13fd7 curves
  182. Drd Kt88?
  183. miniature tube amp
  184. 300B pp schematic found, what about it?
  185. Tube Output Stage
  186. se otl
  187. Toroidals as OPTs?
  188. Tube advice
  189. Understanding OPT primary Z and load matching.
  190. help with Optomal placement of output transformers.
  191. 50h B26
  192. Anyone know what this is?? Strange tube/ bulb.
  193. Please ID output transformer
  194. Cheap and Easy Tube Phono Preamp
  195. Carbon film vs metal film resistors in a stepped attenuator?
  196. Alps pots vs. TKD pots? TKD worth the extra$$?
  197. Opamp as tube driver: Protection ideas?
  198. Looking for schematics CROFT OTL APPARITION
  199. ISO (new Tango) info...
  200. Noob Question on Driver Stages
  201. High Voltage Reference
  202. DIY valve amp
  203. JJ multisection caps
  204. Inverted Interstage Transformer
  205. regarding to the design of iron-cored inductors (chokes)
  206. Trying to find an amp
  207. 12v tube output stage for cs43122 based dac?
  208. Wattages & Loudness: ?I'm Lost?
  209. cmrr of common cathode
  210. The Next Step. (and budget tube amplifier kits/designs).
  211. non-diy amplifiers with choke input power supplies
  212. Does a cathode bypass capacitor reduce hum?
  213. a tube convert tries a mosfet
  214. Motorboating in leak 20
  215. New MC preamp is comming alive
  216. HV tubes
  217. power supply pspice simulation problem
  218. Can a tube rectifier handle a C dual LC?
  219. Valve schematic & PC board design
  220. Just acqired some strange tubes.........
  221. Sovtek 6L6WXT
  222. RCA tubes, need info
  223. Stromberg Carlson 245M
  224. mounting tubes upside-down
  225. 6922 acting strange........or is it ?
  226. Fender Champ: What Transformers?
  227. Naive CCS quesion
  228. DIY scrap tubebuffer with ECC88
  229. choke current rating
  230. Velleman K8010
  231. film vs. electrolytic
  232. Tube mic preamp for speaker measurements
  233. 833a plate resistance ?
  234. second harmonic distortion
  235. Speakers not connected on tube amp, good or bad?
  236. different psu filter topologies ?
  237. Does anyone know this english amp ?
  238. kt88 power amplifier
  239. physical layout of 6B4G PP amp?
  240. Tube Life
  241. PSUD2 designer accuracy?
  242. Need advice on old 6bq5 amp...........
  243. rca83 rectifier precautions
  244. Multi chassis grounding scheme.
  245. 717a Datasheet
  246. 12B4 Battery Bias from (Preamp: Foreplay or 5687 or 12B4 )
  247. Need Six-pac amp schematic
  248. Any clue of how to use this part as a current sink for a CF?
  249. Tweeks on tubes - bring out the demagnetiserss
  250. Absolute. Best. Chassis. Ever.

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