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  1. Maestro soya amplificador
  2. Can I use my tube amp as a preamp ?
  3. Simple SE with 6BG6GA - magic smoke escapes...
  4. Shunt Cascode Power Valve Driver
  5. Did Siemens ever publish data for their own D3A ?
  6. Measure unknown choke?
  7. 6528a....HELP ME PLEASE...PLEASE..
  8. Are any of these tubes useful to me?
  9. Heaters The Key Too Sweet Tube Tone.
  10. PP Output Transformer design
  11. "Kingfisher" P-P Amp using 7591A Outputs and Fisher 500B Iron
  12. 832 ultra-linear push pull?
  13. 3A5 thoughts
  14. ECC86 vs. ECC88
  15. RH84 builder!
  16. 10GV8 Bias point for the K-12G
  17. EL34 amp blowing up, anode glowing red hot
  18. Steve Bench's LR Phono Stage - Cathode Bias Circuit Question
  19. Tubelab SE w/Parafeed
  20. Chinese 805 SET monoblock
  21. Vreg or Ireg for Phono heaters
  22. Pentode preamp tube hum balance
  23. New (old) Friends
  24. How to avoid oscillation and get max BW out of crappy OPT
  25. Power Measurements at normal listening levels
  26. Best way to terminate unused OPT winding?
  27. patent on single-ended amplifier, anno 2008
  28. Headphones amplifier with highish gnfb
  29. Bias meter for AQ1008DT
  30. Change Tubes
  31. PLC84 amp
  32. Color Coding for Fisher 500B Iron
  33. Tubelab SE with 45 tubes only
  34. 6L6GC, ECC33, EF37 Amp.. Just cant get it right
  35. 10dB increase in volume needs what gain?
  36. El Cheapo feedback loop adjustment
  37. KT88 blocks? With E80CC + 6922 driver?
  38. 200+/- USA Tubes Plus "Weston Model 891" Tube Checker
  39. What to do with 3500uF 650V caps???
  40. SS Rectification
  41. Passive filter at tube amp input
  42. Found this Trio WX-400
  43. PSUD & The JE Labs 2A3
  44. 815
  45. x1 Oscilloscope probes
  46. Iron LTP Schade-PP
  47. Single Ended Pentode Spud and Feedback
  48. Yes, I've searched. Can I use a PP OPT in a SE amp ?
  49. DC on toroid PT windings
  50. Audible benefits of larger coupling caps than required?
  51. Any benefits of regulated current heater supply?
  52. Power Transformer Kaput ???
  53. aikido phono schematic qustion
  54. Easy question for experienced tubies
  55. valves dont sound so good when pink....
  56. Aikido Resistor Help
  57. Mobile Phone Interference
  58. Thank you DIY Audio
  59. Fisher 80-R Can't Find a Schematic
  60. SRPP layout
  61. Rogers E40a Amplifier Schematic
  62. Encapsulating OPTs
  63. Does anyone have 6BQ6 (sweep tube) triode plate curves to share?
  64. JAN6418 and microphony
  65. can the 6n9s take 300v? (ru 6sl7)
  66. Output impedance of various MOSFET followers at low (<10mA) currents
  67. Big Box O' Tubes
  68. 6j7g 832a amp
  69. Quick Question on Dc coupling
  70. PP question - best driver stage!
  71. SRPP+, or did JRB "borrow" from here?
  72. 5651(A) 85Kr
  73. Ampex 6v6 PP.. worth saving?
  74. The DeForest 504 tube
  75. Sven 6P1P PP Amp
  76. Black 6V6GT - originals
  77. tube phasing for more power?
  78. measuring output transformer inductance?
  79. Question re paralleling common-cathode tube sections
  80. There's so much bait for dumb fishies out there!
  81. Biasing G3 in beamies
  82. 6DJ8 vs 6N1P (6H1N)
  83. Test equipment collection
  84. Rca mi-9358a
  85. FISHER - 500b Caps Leave Them In ???
  86. tek 454
  87. RCA Calypso
  88. New to Valve Amps and Confused???
  89. Anyone used the TL783 as a CCS
  90. Katelelo
  91. EFE-1 (PP EL-34) by Miolljub Mile Nestorovic
  92. Ping netlist - ECC88 spice models
  93. Please help analyse 807 PPP
  94. DIY Tube Pre with remote
  95. P-P Katodfollower with 6c33c
  96. valve sub
  97. Help on outboard PSU for tube amp
  98. Looking for ARC LS8MKII circuit?
  99. Entire Assembly Glowing in 20 Seconds
  100. 6X5GT PS Problem
  101. Sad News About Blackburn / Tech Tube
  102. Loose top caps.
  103. rh807 choke question?
  104. 6021 Cascode
  105. 6U7-G as driver in a RH 807?
  106. Possible Ebay bargain
  107. Possible Ebay bargin
  108. 845 tube question
  109. Broken VCM163
  110. my ongoing amp project since 2004 or so, ver. 13.29.b1.xx.n
  111. Datasheet wanted
  112. SE 833A Help
  113. PS ripple vs output impedance for PP AB1
  114. Simple SE with 807?
  115. Dynaco Bias Balance kit
  116. EL42 Tube
  117. 6GV8 at lowish voltage
  118. 703A tube source?
  119. Music Angel EL34 PP + 6N2 schematics ( MINIL3 )
  120. "Back To Back" transformers
  121. Dual HF small signal pentodes ?
  122. pre amp output delay circuit?
  123. Standby voltages for tube circuits.
  124. SE Output transformers
  125. Advice on connector type for outboard PS
  126. Decent Junk Pile find! Need Advice suggestions etc.!
  127. Red Plate,Tube runaway, glowing screen grids
  128. Dogfish
  129. Anyone ever bought this Ebay Head amp?
  130. Rogers Cadet III (Mk3) - which input to use?
  131. Recycling a TT plinth as a tube amp chassis?
  132. RH-84 Hum
  133. Regulator LD1085V Question
  134. Chasing Hum...
  135. What do you know about the 23D4?
  136. Vacuum State RTP3C
  137. Another Tubelad SE build
  138. Noisy DC filament power supply problem on an Aikido
  139. Aikido Phono Stage with Step-up Transformers
  140. 6-volt rectifier tube
  141. Replacing output transformer questions
  142. Hey SY, were you aware of this?
  143. Where is the best place to sell a pair of OTs?
  144. EL84 tube regulator
  145. Testing 6H2P on 600a
  146. Grid stoppers, clamping, blocking and crossover distortion.
  147. Genrad 1630AV
  148. Gary Pimms "self bias ccs" - guide for dummies
  149. Using a PC as source? + "garage sale"
  150. loktal version of 6bl7
  151. RCA SE 6bq5 amp gain problems
  152. 12V AC to 6.3v DC simple supply for idiots
  153. PPAB with plate feedback, current-mirror driver
  154. LM317 oscillating in cathode circuit
  155. Tubelab SE amp question
  156. Help with RIAA stage schematics
  157. 829B/3E29 "Triode" Push Pull Paralleled Sections
  158. Phantom Bidders on eBay
  159. Complicated psuedo-scope question
  160. Help me choose between two designs
  161. Miller Capacitance AGAIN!
  162. Channel switching / Relay / board
  163. Tossie's valve world site
  164. What is the purpose of resistive load at line output trans?
  165. 8608 pentode
  166. #26 pre amp
  167. my third RH84
  168. Miller Capacitance of triode strapped pentode
  169. 50 set amp
  170. Valuable Valves
  171. Allowable screen voltages in triode-connected pentodes
  172. grounding cable
  173. SS Driver and splitter stages used for PP tube output???
  174. Resistance coupled cascaded amplifier
  175. 6SL7 alternatives?
  176. Dynaco st70 vs Heathkit W5M
  177. Ceasar II - HighEnd Tube Mono Block Project
  178. Cool amp
  179. output tube blocking distortion problem
  180. HP 8903 software posted
  181. Rectifier for 900v DC
  182. How good are these?
  183. Brimar 6V6G different operating parameters to later GT?
  184. RCA RK290 console question
  185. pls help me, Buil my first AMP with 6H5C (=6AS7) tube.
  186. Simple 6V6 Push Pull Schematic
  187. remote help for RCA RK-290 console
  188. Suggestion for a 2x15 or 2x20 amp?
  189. Spud, Schade, PP, Anti-triode ECL86
  190. Posted new P-P power amp design
  191. Steve Bench LR Phono Amp. with (Sowter or Dave irons)
  192. Vintage RCA amps
  193. 6.3V/5A DC Fillament Schematic
  194. Can I use this output transformers with a 5965?
  195. Measuring Tube Gm
  196. Can I use this output transformers with a 5695?
  197. How to design a direct coupled SE amplifier?
  198. Ordered TechTube Valves today
  199. Should I buy and part out an old Hammond tube organ?
  200. 6N6P Unbalanced Sound?
  201. DC filaments for 6550s
  202. My Copland CTA401 hums , help needed please
  203. Triode connected Pentodes in a cathode bias?
  204. Transformer as a voltage gain element
  205. Russian 6p31s tubes
  206. Ixcp 10m45s
  207. rectifier limiting resistors capacitor input
  208. arc V70 blue flash in KT90 tubes
  209. Choke?
  210. EL34 PP motorboating questions
  211. GU29 damaged
  212. PSUD2 questions
  213. Help lundahl-300bxls problem
  214. Srrp output question
  215. je lab 300b
  216. SET amp using Triode-FET complementary feedback pair ?
  217. Monarch STA-100X Refurb
  218. What causes high THD in tube amps ?
  219. Cons / Pros
  220. Preamp 6v6 grid leak resistor value?
  221. Quick question about preamps
  222. Why are mesh plates supposed to be superior?
  223. 60's and 70's GE tubes
  224. What valves are pin compatible with ECC88 / 6DJ8?
  225. Eico HF-81 OPT specs
  226. Audio Research V70 mains transformer rewiring for 220 volts.
  227. looking for fairly simple project for Eico 81 OPT's
  228. looking for fairly simple project for Eico 81 OPT's
  229. New Hybrid Driver/Amplifier
  230. OT: vacuum diode AM detector schematics ?
  231. Sad News about George Wright
  232. Finest Chinese Tube Preamp?
  233. 12B4 Line Stage + Phono Option
  234. Crinkly tube getter Is this bad?
  235. ??? Output Transformer - Silicon Steel or Amorphous
  236. Is it time for another CCS Group Buy?
  237. Am I Going to Kill This Amp?
  238. My version of the Simple EL84 or rise of the anti-triode.
  239. Intercomponent ground loop hum
  240. Connecting the heater to the cathode in rectifier tube
  241. EF86 replacement
  242. Super Simple Valve Pre-amp Suggestions?
  243. 6V6 P-P Amp From RCA Manual RC-19
  244. phono stage woes...
  245. stereo SE kt88 build ... abdellah diyaudioprojects design
  246. Mounting filament transformers under chassis?
  247. More impedances for Hammond 125E
  248. Troubleshooting Push-Pull 2A3 (please help)
  249. Lost a channel in my TSE
  250. 6sl7 srpp kt66 se

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