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  1. ECC88, warm up time
  2. Yaqin MC-10L Heater Voltage
  3. 6c33 otl amblifier
  4. self-oscillation in Dynaco ST-70
  5. Troubleshooting the decware se84 kit
  6. 6L6 PP problem
  7. First try at an Eagle Schematic/board
  8. opinions on decware zen kit
  9. Powerdrive for PP amp with local feedback and pentode driver ?
  10. having trouble calculating transconductance
  11. Philips console unit with reverb!
  12. 300BSET with Kimmel style mu driver ?
  13. EL34/6CA7 driven 300B Schematics
  14. C450 Radio Craftsmen info needed
  15. Magnetic shielding with aluminum
  16. lampizator dac
  17. AES is At It Again...
  18. Se Amp with Push Pull Transformer
  19. 6550 which breed can take the flog ?
  20. Chassis Question
  21. EL82 in triode with silverstepper (TVC)
  22. Joined the 12b4 line stage club. And worth it!
  23. ECL86/PCL86 Schematic
  24. Ambient temperature and tubes
  25. Vintage output transformers
  26. -ve grid voltage
  27. Ming Da MC-3008-A2 Mono Blocks
  28. V-Reg, Gyrator, Low (relative) voltage tubes
  29. Simple Tube amp
  30. Jolida 502A replace power switch
  31. tubes supplier
  32. RadioDaze out of the tube business
  33. C-L-C-parallel-R-C
  34. musical power supplies
  35. Trimpots sound better than equivalent resistors for biasing?
  36. Anyone have a simple circuit for . .
  37. PP Tube Biasing, how good is good enough?
  38. Aesthetics
  39. Point to point, from scatch build of the K-12G
  40. What 6550 for Conrad MV75
  41. Motorboating phono input on Stromberg Carlson ASR433
  42. Pioneer sr-101
  43. 6AU6 in Push Pull: Opinions please
  44. Audionote M7 and Foreplay III
  45. vintage triode
  46. Help with design review wanted
  47. 6J52P pentode driver?
  48. a gutar amp I built
  49. Looking for a good valve preamp
  50. Anyone try the "Hazen mod" to G3 supressor grid
  51. 6L6GC -Which Shuguang can take the Heat?
  52. Using Toroidal PTs as tube OTs - methods and sources
  53. With a little help... KT88 PP UL Amp
  54. TechTube Featured In November AudioXpress
  55. Yaqin MC-100b channel imbalance
  56. Regulated Tube Preamp question
  57. Has anybody purchased from Mable Audio?
  58. PS voltage changes after capacitor replacement
  59. Non-magnetic bolts that hold an output transformer together
  60. Audio Innovations Series 500 Rewire
  61. Which audio electrolytics in tube voltages -- Your comments please !
  62. Some general opt questions.
  63. Looking for ANYTHING on the Audioromy 838 w/805A Tube..
  64. modifying zenith 7d31 amp console
  65. Questions on JE Labs transformer coupled line stage
  66. Onix/Melody SP3 Upgrades and Mods
  67. Motorboating with Regulated Supply
  68. 27 & 6SN7 Preamp - Crossover
  69. Budget 2A3?
  70. first go at design - pp
  71. Tube Amp for MP3 Player
  72. Sonic signatures of KT88, 300B, 805, 845 in SET & PP Configurations
  73. Building the Baby Huey EL84 pushpull amplifier
  74. Tube Voltage Regulator, Is it worth the effort?
  75. Best tubeamp for metal, tight bass
  76. Donor stereo 845 amp- now what!?
  77. "Optimal" output grid loading?
  78. wax poured out!
  79. Yet another do-nothing tOOb hack.
  80. What is a CCS - how do you design one?
  81. Strange Aikido problem when home power fluctuates
  82. Need to regulate 450v --> 300v
  83. new to the forum and looking for el86 info
  84. Steve Bench Crossover Questions
  85. Audio Note M7 - 7F7 CCS
  86. Anyone have schema for katodcoupled 6C33 P-P?
  87. VTV Push-Pull 6SN7/KT88 Amp: DIY or China?
  88. How to identify type of bias used for my tube amp
  89. VR Tube Question
  90. Ampmaker Kits
  91. P-P with some muscle
  92. buzz w/ nothing plugged into inputs. Goes away once jacked in.
  93. CV6 / CV1135 / E1148 / VT232 VHF oscillator triode data
  94. Measuring tube/component temperature
  95. Parallel Single Ended Amplifier Design using Acro TO-290s?
  96. Elevate heater trouble
  97. Adjusting the sensitivity on a 6e2 magic eye tube
  98. tube amp for automobile / need ideas
  99. 6550A HF Amp
  100. problem - scratchy sound, rythmical
  101. eico st70 irons!what to do?
  102. Maestro soya amplificador
  103. Can I use my tube amp as a preamp ?
  104. Shunt Cascode Power Valve Driver
  105. Did Siemens ever publish data for their own D3A ?
  106. Measure unknown choke?
  107. 6528a....HELP ME PLEASE...PLEASE..
  108. Are any of these tubes useful to me?
  109. Heaters The Key Too Sweet Tube Tone.
  110. PP Output Transformer design
  111. "Kingfisher" P-P Amp using 7591A Outputs and Fisher 500B Iron
  112. 832 ultra-linear push pull?
  113. 3A5 thoughts
  114. ECC86 vs. ECC88
  115. RH84 builder!
  116. 10GV8 Bias point for the K-12G
  117. EL34 amp blowing up, anode glowing red hot
  118. Steve Bench's LR Phono Stage - Cathode Bias Circuit Question
  119. Chinese 805 SET monoblock
  120. Vreg or Ireg for Phono heaters
  121. Pentode preamp tube hum balance
  122. New (old) Friends
  123. How to avoid oscillation and get max BW out of crappy OPT
  124. Power Measurements at normal listening levels
  125. Best way to terminate unused OPT winding?
  126. patent on single-ended amplifier, anno 2008
  127. Headphones amplifier with highish gnfb
  128. Change Tubes
  129. PLC84 amp
  130. Color Coding for Fisher 500B Iron
  131. 6L6GC, ECC33, EF37 Amp.. Just cant get it right
  132. 10dB increase in volume needs what gain?
  133. El Cheapo feedback loop adjustment
  134. KT88 blocks? With E80CC + 6922 driver?
  135. 200+/- USA Tubes Plus "Weston Model 891" Tube Checker
  136. SS Rectification
  137. Passive filter at tube amp input
  138. Found this Trio WX-400
  139. PSUD & The JE Labs 2A3
  140. 815
  141. Iron LTP Schade-PP
  142. Single Ended Pentode Spud and Feedback
  143. Yes, I've searched. Can I use a PP OPT in a SE amp ?
  144. DC on toroid PT windings
  145. Any benefits of regulated current heater supply?
  146. Power Transformer Kaput ???
  147. aikido phono schematic qustion
  148. Easy question for experienced tubies
  149. valves dont sound so good when pink....
  150. Aikido Resistor Help
  151. Mobile Phone Interference
  152. Thank you DIY Audio
  153. Fisher 80-R Can't Find a Schematic
  154. SRPP layout
  155. Rogers E40a Amplifier Schematic
  156. Encapsulating OPTs
  157. Does anyone have 6BQ6 (sweep tube) triode plate curves to share?
  158. JAN6418 and microphony
  159. can the 6n9s take 300v? (ru 6sl7)
  160. Output impedance of various MOSFET followers at low (<10mA) currents
  161. Big Box O' Tubes
  162. 6j7g 832a amp
  163. Quick Question on Dc coupling
  164. PP question - best driver stage!
  165. SRPP+, or did JRB "borrow" from here?
  166. 5651(A) 85Kr
  167. Ampex 6v6 PP.. worth saving?
  168. The DeForest 504 tube
  169. Sven 6P1P PP Amp
  170. Black 6V6GT - originals
  171. tube phasing for more power?
  172. Question re paralleling common-cathode tube sections
  173. There's so much bait for dumb fishies out there!
  174. Biasing G3 in beamies
  175. 6DJ8 vs 6N1P (6H1N)
  176. Rca mi-9358a
  177. FISHER - 500b Caps Leave Them In ???
  178. RCA Calypso
  179. New to Valve Amps and Confused???
  180. Anyone used the TL783 as a CCS
  181. Katelelo
  182. EFE-1 (PP EL-34) by Miolljub Mile Nestorovic
  183. Ping netlist - ECC88 spice models
  184. Please help analyse 807 PPP
  185. DIY Tube Pre with remote
  186. P-P Katodfollower with 6c33c
  187. valve sub
  188. Help on outboard PSU for tube amp
  189. Looking for ARC LS8MKII circuit?
  190. Entire Assembly Glowing in 20 Seconds
  191. 6X5GT PS Problem
  192. Sad News About Blackburn / Tech Tube
  193. Loose top caps.
  194. rh807 choke question?
  195. 6021 Cascode
  196. 6U7-G as driver in a RH 807?
  197. Possible Ebay bargain
  198. 845 tube question
  199. Broken VCM163
  200. my ongoing amp project since 2004 or so, ver. 13.29.b1.xx.n
  201. Datasheet wanted
  202. SE 833A Help
  203. PS ripple vs output impedance for PP AB1
  204. Dynaco Bias Balance kit
  205. EL42 Tube
  206. 6GV8 at lowish voltage
  207. 703A tube source?
  208. Music Angel EL34 PP + 6N2 schematics ( MINIL3 )
  209. "Back To Back" transformers
  210. Dual HF small signal pentodes ?
  211. pre amp output delay circuit?
  212. Standby voltages for tube circuits.
  213. SE Output transformers
  214. Decent Junk Pile find! Need Advice suggestions etc.!
  215. Red Plate,Tube runaway, glowing screen grids
  216. Dogfish
  217. Anyone ever bought this Ebay Head amp?
  218. Rogers Cadet III (Mk3) - which input to use?
  219. Recycling a TT plinth as a tube amp chassis?
  220. RH-84 Hum
  221. Regulator LD1085V Question
  222. Chasing Hum...
  223. What do you know about the 23D4?
  224. Vacuum State RTP3C
  225. Another Tubelad SE build
  226. Noisy DC filament power supply problem on an Aikido
  227. Aikido Phono Stage with Step-up Transformers
  228. 6-volt rectifier tube
  229. Replacing output transformer questions
  230. Hey SY, were you aware of this?
  231. Where is the best place to sell a pair of OTs?
  232. EL84 tube regulator
  233. Testing 6H2P on 600a
  234. Genrad 1630AV
  235. Gary Pimms "self bias ccs" - guide for dummies
  236. Using a PC as source? + "garage sale"
  237. loktal version of 6bl7
  238. RCA SE 6bq5 amp gain problems
  239. 12V AC to 6.3v DC simple supply for idiots
  240. PPAB with plate feedback, current-mirror driver
  241. LM317 oscillating in cathode circuit
  242. Help with RIAA stage schematics
  243. 829B/3E29 "Triode" Push Pull Paralleled Sections
  244. Phantom Bidders on eBay
  245. Help me choose between two designs
  246. Miller Capacitance AGAIN!
  247. Tossie's valve world site
  248. What is the purpose of resistive load at line output trans?
  249. 8608 pentode
  250. #26 pre amp

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