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  1. 10GV8 Bias point for the K-12G
  2. EL34 amp blowing up, anode glowing red hot
  3. Steve Bench's LR Phono Stage - Cathode Bias Circuit Question
  4. Tubelab SE w/Parafeed
  5. Chinese 805 SET monoblock
  6. Vreg or Ireg for Phono heaters
  7. Pentode preamp tube hum balance
  8. New (old) Friends
  9. How to avoid oscillation and get max BW out of crappy OPT
  10. Power Measurements at normal listening levels
  11. Best way to terminate unused OPT winding?
  12. patent on single-ended amplifier, anno 2008
  13. Headphones amplifier with highish gnfb
  14. Bias meter for AQ1008DT
  15. Change Tubes
  16. PLC84 amp
  17. Color Coding for Fisher 500B Iron
  18. Tubelab SE with 45 tubes only
  19. 6L6GC, ECC33, EF37 Amp.. Just cant get it right
  20. 10dB increase in volume needs what gain?
  21. El Cheapo feedback loop adjustment
  22. KT88 blocks? With E80CC + 6922 driver?
  23. 200+/- USA Tubes Plus "Weston Model 891" Tube Checker
  24. SS Rectification
  25. Passive filter at tube amp input
  26. Found this Trio WX-400
  27. PSUD & The JE Labs 2A3
  28. 815
  29. x1 Oscilloscope probes
  30. Iron LTP Schade-PP
  31. Single Ended Pentode Spud and Feedback
  32. Yes, I've searched. Can I use a PP OPT in a SE amp ?
  33. DC on toroid PT windings
  34. Any benefits of regulated current heater supply?
  35. Power Transformer Kaput ???
  36. aikido phono schematic qustion
  37. Easy question for experienced tubies
  38. valves dont sound so good when pink....
  39. Aikido Resistor Help
  40. Mobile Phone Interference
  41. Thank you DIY Audio
  42. Fisher 80-R Can't Find a Schematic
  43. SRPP layout
  44. Rogers E40a Amplifier Schematic
  45. Encapsulating OPTs
  46. Does anyone have 6BQ6 (sweep tube) triode plate curves to share?
  47. JAN6418 and microphony
  48. can the 6n9s take 300v? (ru 6sl7)
  49. Output impedance of various MOSFET followers at low (<10mA) currents
  50. Big Box O' Tubes
  51. 6j7g 832a amp
  52. Quick Question on Dc coupling
  53. PP question - best driver stage!
  54. SRPP+, or did JRB "borrow" from here?
  55. 5651(A) 85Kr
  56. Ampex 6v6 PP.. worth saving?
  57. The DeForest 504 tube
  58. Sven 6P1P PP Amp
  59. Black 6V6GT - originals
  60. tube phasing for more power?
  61. measuring output transformer inductance?
  62. Question re paralleling common-cathode tube sections
  63. There's so much bait for dumb fishies out there!
  64. Biasing G3 in beamies
  65. 6DJ8 vs 6N1P (6H1N)
  66. Test equipment collection
  67. Rca mi-9358a
  68. FISHER - 500b Caps Leave Them In ???
  69. tek 454
  70. RCA Calypso
  71. New to Valve Amps and Confused???
  72. Anyone used the TL783 as a CCS
  73. Katelelo
  74. EFE-1 (PP EL-34) by Miolljub Mile Nestorovic
  75. Ping netlist - ECC88 spice models
  76. Please help analyse 807 PPP
  77. DIY Tube Pre with remote
  78. P-P Katodfollower with 6c33c
  79. valve sub
  80. Help on outboard PSU for tube amp
  81. Looking for ARC LS8MKII circuit?
  82. Entire Assembly Glowing in 20 Seconds
  83. 6X5GT PS Problem
  84. Sad News About Blackburn / Tech Tube
  85. Loose top caps.
  86. rh807 choke question?
  87. 6021 Cascode
  88. 6U7-G as driver in a RH 807?
  89. Possible Ebay bargain
  90. Possible Ebay bargin
  91. 845 tube question
  92. Broken VCM163
  93. my ongoing amp project since 2004 or so, ver. 13.29.b1.xx.n
  94. Datasheet wanted
  95. SE 833A Help
  96. PS ripple vs output impedance for PP AB1
  97. Simple SE with 807?
  98. Dynaco Bias Balance kit
  99. EL42 Tube
  100. 6GV8 at lowish voltage
  101. 703A tube source?
  102. Music Angel EL34 PP + 6N2 schematics ( MINIL3 )
  103. "Back To Back" transformers
  104. Dual HF small signal pentodes ?
  105. pre amp output delay circuit?
  106. Standby voltages for tube circuits.
  107. SE Output transformers
  108. Advice on connector type for outboard PS
  109. Decent Junk Pile find! Need Advice suggestions etc.!
  110. Red Plate,Tube runaway, glowing screen grids
  111. Dogfish
  112. Anyone ever bought this Ebay Head amp?
  113. Rogers Cadet III (Mk3) - which input to use?
  114. Recycling a TT plinth as a tube amp chassis?
  115. RH-84 Hum
  116. Regulator LD1085V Question
  117. Chasing Hum...
  118. What do you know about the 23D4?
  119. Vacuum State RTP3C
  120. Another Tubelad SE build
  121. Noisy DC filament power supply problem on an Aikido
  122. Aikido Phono Stage with Step-up Transformers
  123. 6-volt rectifier tube
  124. Replacing output transformer questions
  125. Hey SY, were you aware of this?
  126. Where is the best place to sell a pair of OTs?
  127. EL84 tube regulator
  128. Testing 6H2P on 600a
  129. Grid stoppers, clamping, blocking and crossover distortion.
  130. Genrad 1630AV
  131. Gary Pimms "self bias ccs" - guide for dummies
  132. Using a PC as source? + "garage sale"
  133. loktal version of 6bl7
  134. RCA SE 6bq5 amp gain problems
  135. 12V AC to 6.3v DC simple supply for idiots
  136. PPAB with plate feedback, current-mirror driver
  137. LM317 oscillating in cathode circuit
  138. Tubelab SE amp question
  139. Help with RIAA stage schematics
  140. 829B/3E29 "Triode" Push Pull Paralleled Sections
  141. Phantom Bidders on eBay
  142. Complicated psuedo-scope question
  143. Help me choose between two designs
  144. Miller Capacitance AGAIN!
  145. Channel switching / Relay / board
  146. Tossie's valve world site
  147. What is the purpose of resistive load at line output trans?
  148. 8608 pentode
  149. #26 pre amp
  150. my third RH84
  151. Miller Capacitance of triode strapped pentode
  152. 50 set amp
  153. Valuable Valves
  154. Allowable screen voltages in triode-connected pentodes
  155. grounding cable
  156. SS Driver and splitter stages used for PP tube output???
  157. Resistance coupled cascaded amplifier
  158. 6SL7 alternatives?
  159. Dynaco st70 vs Heathkit W5M
  160. Ceasar II - HighEnd Tube Mono Block Project
  161. Cool amp
  162. output tube blocking distortion problem
  163. HP 8903 software posted
  164. Rectifier for 900v DC
  165. How good are these?
  166. Brimar 6V6G different operating parameters to later GT?
  167. RCA RK290 console question
  168. pls help me, Buil my first AMP with 6H5C (=6AS7) tube.
  169. Simple 6V6 Push Pull Schematic
  170. remote help for RCA RK-290 console
  171. Suggestion for a 2x15 or 2x20 amp?
  172. Spud, Schade, PP, Anti-triode ECL86
  173. Posted new P-P power amp design
  174. Steve Bench LR Phono Amp. with (Sowter or Dave irons)
  175. Vintage RCA amps
  176. 6.3V/5A DC Fillament Schematic
  177. Can I use this output transformers with a 5965?
  178. Measuring Tube Gm
  179. Can I use this output transformers with a 5695?
  180. How to design a direct coupled SE amplifier?
  181. Ordered TechTube Valves today
  182. Should I buy and part out an old Hammond tube organ?
  183. 6N6P Unbalanced Sound?
  184. DC filaments for 6550s
  185. My Copland CTA401 hums , help needed please
  186. Triode connected Pentodes in a cathode bias?
  187. Transformer as a voltage gain element
  188. Russian 6p31s tubes
  189. Ixcp 10m45s
  190. rectifier limiting resistors capacitor input
  191. arc V70 blue flash in KT90 tubes
  192. Choke?
  193. EL34 PP motorboating questions
  194. GU29 damaged
  195. PSUD2 questions
  196. Help lundahl-300bxls problem
  197. Srrp output question
  198. je lab 300b
  199. SET amp using Triode-FET complementary feedback pair ?
  200. Monarch STA-100X Refurb
  201. What causes high THD in tube amps ?
  202. Cons / Pros
  203. Preamp 6v6 grid leak resistor value?
  204. Quick question about preamps
  205. Why are mesh plates supposed to be superior?
  206. 60's and 70's GE tubes
  207. What valves are pin compatible with ECC88 / 6DJ8?
  208. Eico HF-81 OPT specs
  209. Audio Research V70 mains transformer rewiring for 220 volts.
  210. looking for fairly simple project for Eico 81 OPT's
  211. looking for fairly simple project for Eico 81 OPT's
  212. New Hybrid Driver/Amplifier
  213. OT: vacuum diode AM detector schematics ?
  214. Sad News about George Wright
  215. Finest Chinese Tube Preamp?
  216. 12B4 Line Stage + Phono Option
  217. Crinkly tube getter Is this bad?
  218. ??? Output Transformer - Silicon Steel or Amorphous
  219. Is it time for another CCS Group Buy?
  220. Am I Going to Kill This Amp?
  221. My version of the Simple EL84 or rise of the anti-triode.
  222. Intercomponent ground loop hum
  223. Connecting the heater to the cathode in rectifier tube
  224. EF86 replacement
  225. Super Simple Valve Pre-amp Suggestions?
  226. 6V6 P-P Amp From RCA Manual RC-19
  227. phono stage woes...
  228. stereo SE kt88 build ... abdellah diyaudioprojects design
  229. Mounting filament transformers under chassis?
  230. More impedances for Hammond 125E
  231. Troubleshooting Push-Pull 2A3 (please help)
  232. Lost a channel in my TSE
  233. 6sl7 srpp kt66 se
  234. asking about 6sn7 and 2a3 tubes
  235. help w/ Eico hf-81
  236. Hammond PT power ratings
  237. JVC/Delmonico console info
  238. my TubeLab Amps
  239. Issues with grid choke
  240. Sharp reg. for tubelab se
  241. Calibration of Mercury 1000 tube test set
  242. 6v6 music machine build help!
  243. PCF801 Suggestions
  244. el84 200V Vg2 curves
  245. What's the advantage of E-linear
  246. Tube microphonics (article)
  247. Another Counterpoint SA-7.1 question
  248. How to test a subminiature tube
  249. C3M linestage
  250. Needinfo: Tamradio SOT-850 specs

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