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  1. Did Siemens ever publish data for their own D3A ?
  2. Measure unknown choke?
  3. 6528a....HELP ME PLEASE...PLEASE..
  4. Are any of these tubes useful to me?
  5. Heaters The Key Too Sweet Tube Tone.
  6. PP Output Transformer design
  7. "Kingfisher" P-P Amp using 7591A Outputs and Fisher 500B Iron
  8. 832 ultra-linear push pull?
  9. 3A5 thoughts
  10. ECC86 vs. ECC88
  11. RH84 builder!
  12. 10GV8 Bias point for the K-12G
  13. EL34 amp blowing up, anode glowing red hot
  14. Steve Bench's LR Phono Stage - Cathode Bias Circuit Question
  15. Tubelab SE w/Parafeed
  16. Chinese 805 SET monoblock
  17. Vreg or Ireg for Phono heaters
  18. Pentode preamp tube hum balance
  19. New (old) Friends
  20. How to avoid oscillation and get max BW out of crappy OPT
  21. Power Measurements at normal listening levels
  22. Best way to terminate unused OPT winding?
  23. patent on single-ended amplifier, anno 2008
  24. Headphones amplifier with highish gnfb
  25. Bias meter for AQ1008DT
  26. Change Tubes
  27. PLC84 amp
  28. Color Coding for Fisher 500B Iron
  29. Tubelab SE with 45 tubes only
  30. 6L6GC, ECC33, EF37 Amp.. Just cant get it right
  31. 10dB increase in volume needs what gain?
  32. El Cheapo feedback loop adjustment
  33. KT88 blocks? With E80CC + 6922 driver?
  34. 200+/- USA Tubes Plus "Weston Model 891" Tube Checker
  35. What to do with 3500uF 650V caps???
  36. SS Rectification
  37. Passive filter at tube amp input
  38. Found this Trio WX-400
  39. PSUD & The JE Labs 2A3
  40. 815
  41. x1 Oscilloscope probes
  42. Iron LTP Schade-PP
  43. Single Ended Pentode Spud and Feedback
  44. Yes, I've searched. Can I use a PP OPT in a SE amp ?
  45. DC on toroid PT windings
  46. Audible benefits of larger coupling caps than required?
  47. Any benefits of regulated current heater supply?
  48. Power Transformer Kaput ???
  49. aikido phono schematic qustion
  50. Easy question for experienced tubies
  51. valves dont sound so good when pink....
  52. Aikido Resistor Help
  53. Mobile Phone Interference
  54. Thank you DIY Audio
  55. Fisher 80-R Can't Find a Schematic
  56. SRPP layout
  57. Rogers E40a Amplifier Schematic
  58. Encapsulating OPTs
  59. Does anyone have 6BQ6 (sweep tube) triode plate curves to share?
  60. JAN6418 and microphony
  61. can the 6n9s take 300v? (ru 6sl7)
  62. Output impedance of various MOSFET followers at low (<10mA) currents
  63. Big Box O' Tubes
  64. 6j7g 832a amp
  65. Quick Question on Dc coupling
  66. PP question - best driver stage!
  67. SRPP+, or did JRB "borrow" from here?
  68. 5651(A) 85Kr
  69. Ampex 6v6 PP.. worth saving?
  70. The DeForest 504 tube
  71. Sven 6P1P PP Amp
  72. Black 6V6GT - originals
  73. tube phasing for more power?
  74. measuring output transformer inductance?
  75. Question re paralleling common-cathode tube sections
  76. There's so much bait for dumb fishies out there!
  77. Biasing G3 in beamies
  78. 6DJ8 vs 6N1P (6H1N)
  79. Test equipment collection
  80. Rca mi-9358a
  81. FISHER - 500b Caps Leave Them In ???
  82. tek 454
  83. RCA Calypso
  84. New to Valve Amps and Confused???
  85. Anyone used the TL783 as a CCS
  86. Katelelo
  87. EFE-1 (PP EL-34) by Miolljub Mile Nestorovic
  88. Ping netlist - ECC88 spice models
  89. Please help analyse 807 PPP
  90. DIY Tube Pre with remote
  91. P-P Katodfollower with 6c33c
  92. valve sub
  93. Help on outboard PSU for tube amp
  94. Looking for ARC LS8MKII circuit?
  95. Entire Assembly Glowing in 20 Seconds
  96. 6X5GT PS Problem
  97. Sad News About Blackburn / Tech Tube
  98. Loose top caps.
  99. rh807 choke question?
  100. 6021 Cascode
  101. 6U7-G as driver in a RH 807?
  102. Possible Ebay bargain
  103. Possible Ebay bargin
  104. 845 tube question
  105. Broken VCM163
  106. my ongoing amp project since 2004 or so, ver. 13.29.b1.xx.n
  107. Datasheet wanted
  108. SE 833A Help
  109. PS ripple vs output impedance for PP AB1
  110. Simple SE with 807?
  111. Dynaco Bias Balance kit
  112. EL42 Tube
  113. 6GV8 at lowish voltage
  114. 703A tube source?
  115. Music Angel EL34 PP + 6N2 schematics ( MINIL3 )
  116. "Back To Back" transformers
  117. Dual HF small signal pentodes ?
  118. pre amp output delay circuit?
  119. Standby voltages for tube circuits.
  120. SE Output transformers
  121. Advice on connector type for outboard PS
  122. Decent Junk Pile find! Need Advice suggestions etc.!
  123. Red Plate,Tube runaway, glowing screen grids
  124. Dogfish
  125. Anyone ever bought this Ebay Head amp?
  126. Rogers Cadet III (Mk3) - which input to use?
  127. Recycling a TT plinth as a tube amp chassis?
  128. RH-84 Hum
  129. Regulator LD1085V Question
  130. Chasing Hum...
  131. What do you know about the 23D4?
  132. Vacuum State RTP3C
  133. Another Tubelad SE build
  134. Noisy DC filament power supply problem on an Aikido
  135. Aikido Phono Stage with Step-up Transformers
  136. 6-volt rectifier tube
  137. Replacing output transformer questions
  138. Hey SY, were you aware of this?
  139. Where is the best place to sell a pair of OTs?
  140. EL84 tube regulator
  141. Testing 6H2P on 600a
  142. Grid stoppers, clamping, blocking and crossover distortion.
  143. Genrad 1630AV
  144. Gary Pimms "self bias ccs" - guide for dummies
  145. Using a PC as source? + "garage sale"
  146. loktal version of 6bl7
  147. RCA SE 6bq5 amp gain problems
  148. 12V AC to 6.3v DC simple supply for idiots
  149. PPAB with plate feedback, current-mirror driver
  150. LM317 oscillating in cathode circuit
  151. Tubelab SE amp question
  152. Help with RIAA stage schematics
  153. 829B/3E29 "Triode" Push Pull Paralleled Sections
  154. Phantom Bidders on eBay
  155. Complicated psuedo-scope question
  156. Help me choose between two designs
  157. Miller Capacitance AGAIN!
  158. Channel switching / Relay / board
  159. Tossie's valve world site
  160. What is the purpose of resistive load at line output trans?
  161. 8608 pentode
  162. #26 pre amp
  163. my third RH84
  164. Miller Capacitance of triode strapped pentode
  165. 50 set amp
  166. Valuable Valves
  167. Allowable screen voltages in triode-connected pentodes
  168. grounding cable
  169. SS Driver and splitter stages used for PP tube output???
  170. Resistance coupled cascaded amplifier
  171. 6SL7 alternatives?
  172. Dynaco st70 vs Heathkit W5M
  173. Ceasar II - HighEnd Tube Mono Block Project
  174. Cool amp
  175. output tube blocking distortion problem
  176. HP 8903 software posted
  177. Rectifier for 900v DC
  178. How good are these?
  179. Brimar 6V6G different operating parameters to later GT?
  180. RCA RK290 console question
  181. pls help me, Buil my first AMP with 6H5C (=6AS7) tube.
  182. Simple 6V6 Push Pull Schematic
  183. remote help for RCA RK-290 console
  184. Suggestion for a 2x15 or 2x20 amp?
  185. Spud, Schade, PP, Anti-triode ECL86
  186. Posted new P-P power amp design
  187. Steve Bench LR Phono Amp. with (Sowter or Dave irons)
  188. Vintage RCA amps
  189. 6.3V/5A DC Fillament Schematic
  190. Can I use this output transformers with a 5965?
  191. Measuring Tube Gm
  192. Can I use this output transformers with a 5695?
  193. How to design a direct coupled SE amplifier?
  194. Ordered TechTube Valves today
  195. Should I buy and part out an old Hammond tube organ?
  196. 6N6P Unbalanced Sound?
  197. DC filaments for 6550s
  198. My Copland CTA401 hums , help needed please
  199. Triode connected Pentodes in a cathode bias?
  200. Transformer as a voltage gain element
  201. Russian 6p31s tubes
  202. Ixcp 10m45s
  203. rectifier limiting resistors capacitor input
  204. arc V70 blue flash in KT90 tubes
  205. Choke?
  206. EL34 PP motorboating questions
  207. GU29 damaged
  208. PSUD2 questions
  209. Help lundahl-300bxls problem
  210. Srrp output question
  211. je lab 300b
  212. SET amp using Triode-FET complementary feedback pair ?
  213. Monarch STA-100X Refurb
  214. What causes high THD in tube amps ?
  215. Cons / Pros
  216. Preamp 6v6 grid leak resistor value?
  217. Quick question about preamps
  218. Why are mesh plates supposed to be superior?
  219. 60's and 70's GE tubes
  220. What valves are pin compatible with ECC88 / 6DJ8?
  221. Eico HF-81 OPT specs
  222. Audio Research V70 mains transformer rewiring for 220 volts.
  223. looking for fairly simple project for Eico 81 OPT's
  224. looking for fairly simple project for Eico 81 OPT's
  225. New Hybrid Driver/Amplifier
  226. OT: vacuum diode AM detector schematics ?
  227. Sad News about George Wright
  228. Finest Chinese Tube Preamp?
  229. 12B4 Line Stage + Phono Option
  230. Crinkly tube getter Is this bad?
  231. ??? Output Transformer - Silicon Steel or Amorphous
  232. Is it time for another CCS Group Buy?
  233. Am I Going to Kill This Amp?
  234. My version of the Simple EL84 or rise of the anti-triode.
  235. Intercomponent ground loop hum
  236. Connecting the heater to the cathode in rectifier tube
  237. EF86 replacement
  238. Super Simple Valve Pre-amp Suggestions?
  239. 6V6 P-P Amp From RCA Manual RC-19
  240. phono stage woes...
  241. stereo SE kt88 build ... abdellah diyaudioprojects design
  242. Mounting filament transformers under chassis?
  243. More impedances for Hammond 125E
  244. Troubleshooting Push-Pull 2A3 (please help)
  245. Lost a channel in my TSE
  246. 6sl7 srpp kt66 se
  247. asking about 6sn7 and 2a3 tubes
  248. help w/ Eico hf-81
  249. Hammond PT power ratings
  250. JVC/Delmonico console info

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