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  1. The DeForest 504 tube
  2. Sven 6P1P PP Amp
  3. Black 6V6GT - originals
  4. tube phasing for more power?
  5. measuring output transformer inductance?
  6. Question re paralleling common-cathode tube sections
  7. There's so much bait for dumb fishies out there!
  8. Biasing G3 in beamies
  9. 6DJ8 vs 6N1P (6H1N)
  10. Test equipment collection
  11. Rca mi-9358a
  12. FISHER - 500b Caps Leave Them In ???
  13. tek 454
  14. RCA Calypso
  15. New to Valve Amps and Confused???
  16. Anyone used the TL783 as a CCS
  17. Katelelo
  18. EFE-1 (PP EL-34) by Miolljub Mile Nestorovic
  19. Ping netlist - ECC88 spice models
  20. Please help analyse 807 PPP
  21. DIY Tube Pre with remote
  22. P-P Katodfollower with 6c33c
  23. valve sub
  24. Help on outboard PSU for tube amp
  25. Looking for ARC LS8MKII circuit?
  26. Entire Assembly Glowing in 20 Seconds
  27. 6X5GT PS Problem
  28. Sad News About Blackburn / Tech Tube
  29. Loose top caps.
  30. rh807 choke question?
  31. 6021 Cascode
  32. 6U7-G as driver in a RH 807?
  33. Possible Ebay bargain
  34. Possible Ebay bargin
  35. 845 tube question
  36. Broken VCM163
  37. my ongoing amp project since 2004 or so, ver. 13.29.b1.xx.n
  38. Datasheet wanted
  39. SE 833A Help
  40. PS ripple vs output impedance for PP AB1
  41. Simple SE with 807?
  42. Dynaco Bias Balance kit
  43. EL42 Tube
  44. 6GV8 at lowish voltage
  45. 703A tube source?
  46. Music Angel EL34 PP + 6N2 schematics ( MINIL3 )
  47. "Back To Back" transformers
  48. Dual HF small signal pentodes ?
  49. pre amp output delay circuit?
  50. Standby voltages for tube circuits.
  51. SE Output transformers
  52. Advice on connector type for outboard PS
  53. Decent Junk Pile find! Need Advice suggestions etc.!
  54. Red Plate,Tube runaway, glowing screen grids
  55. Dogfish
  56. Anyone ever bought this Ebay Head amp?
  57. Rogers Cadet III (Mk3) - which input to use?
  58. Recycling a TT plinth as a tube amp chassis?
  59. RH-84 Hum
  60. Regulator LD1085V Question
  61. Chasing Hum...
  62. What do you know about the 23D4?
  63. Vacuum State RTP3C
  64. Another Tubelad SE build
  65. Noisy DC filament power supply problem on an Aikido
  66. Aikido Phono Stage with Step-up Transformers
  67. 6-volt rectifier tube
  68. Replacing output transformer questions
  69. Hey SY, were you aware of this?
  70. Where is the best place to sell a pair of OTs?
  71. EL84 tube regulator
  72. Testing 6H2P on 600a
  73. Grid stoppers, clamping, blocking and crossover distortion.
  74. Genrad 1630AV
  75. Gary Pimms "self bias ccs" - guide for dummies
  76. Using a PC as source? + "garage sale"
  77. loktal version of 6bl7
  78. RCA SE 6bq5 amp gain problems
  79. 12V AC to 6.3v DC simple supply for idiots
  80. PPAB with plate feedback, current-mirror driver
  81. LM317 oscillating in cathode circuit
  82. Tubelab SE amp question
  83. Help with RIAA stage schematics
  84. 829B/3E29 "Triode" Push Pull Paralleled Sections
  85. Phantom Bidders on eBay
  86. Complicated psuedo-scope question
  87. Help me choose between two designs
  88. Miller Capacitance AGAIN!
  89. Channel switching / Relay / board
  90. Tossie's valve world site
  91. What is the purpose of resistive load at line output trans?
  92. 8608 pentode
  93. #26 pre amp
  94. my third RH84
  95. Miller Capacitance of triode strapped pentode
  96. 50 set amp
  97. Valuable Valves
  98. Allowable screen voltages in triode-connected pentodes
  99. grounding cable
  100. SS Driver and splitter stages used for PP tube output???
  101. Resistance coupled cascaded amplifier
  102. 6SL7 alternatives?
  103. Dynaco st70 vs Heathkit W5M
  104. Ceasar II - HighEnd Tube Mono Block Project
  105. Cool amp
  106. output tube blocking distortion problem
  107. HP 8903 software posted
  108. Rectifier for 900v DC
  109. How good are these?
  110. Brimar 6V6G different operating parameters to later GT?
  111. RCA RK290 console question
  112. pls help me, Buil my first AMP with 6H5C (=6AS7) tube.
  113. Simple 6V6 Push Pull Schematic
  114. remote help for RCA RK-290 console
  115. Suggestion for a 2x15 or 2x20 amp?
  116. Spud, Schade, PP, Anti-triode ECL86
  117. Posted new P-P power amp design
  118. Steve Bench LR Phono Amp. with (Sowter or Dave irons)
  119. Vintage RCA amps
  120. 6.3V/5A DC Fillament Schematic
  121. Can I use this output transformers with a 5965?
  122. Measuring Tube Gm
  123. Can I use this output transformers with a 5695?
  124. How to design a direct coupled SE amplifier?
  125. Ordered TechTube Valves today
  126. Should I buy and part out an old Hammond tube organ?
  127. 6N6P Unbalanced Sound?
  128. DC filaments for 6550s
  129. My Copland CTA401 hums , help needed please
  130. Triode connected Pentodes in a cathode bias?
  131. Transformer as a voltage gain element
  132. Russian 6p31s tubes
  133. Ixcp 10m45s
  134. rectifier limiting resistors capacitor input
  135. arc V70 blue flash in KT90 tubes
  136. Choke?
  137. EL34 PP motorboating questions
  138. GU29 damaged
  139. PSUD2 questions
  140. Help lundahl-300bxls problem
  141. Srrp output question
  142. je lab 300b
  143. SET amp using Triode-FET complementary feedback pair ?
  144. Monarch STA-100X Refurb
  145. What causes high THD in tube amps ?
  146. Cons / Pros
  147. Preamp 6v6 grid leak resistor value?
  148. Quick question about preamps
  149. Why are mesh plates supposed to be superior?
  150. 60's and 70's GE tubes
  151. What valves are pin compatible with ECC88 / 6DJ8?
  152. Eico HF-81 OPT specs
  153. Audio Research V70 mains transformer rewiring for 220 volts.
  154. looking for fairly simple project for Eico 81 OPT's
  155. looking for fairly simple project for Eico 81 OPT's
  156. New Hybrid Driver/Amplifier
  157. OT: vacuum diode AM detector schematics ?
  158. Sad News about George Wright
  159. Finest Chinese Tube Preamp?
  160. 12B4 Line Stage + Phono Option
  161. Crinkly tube getter Is this bad?
  162. ??? Output Transformer - Silicon Steel or Amorphous
  163. Is it time for another CCS Group Buy?
  164. Am I Going to Kill This Amp?
  165. My version of the Simple EL84 or rise of the anti-triode.
  166. Intercomponent ground loop hum
  167. Connecting the heater to the cathode in rectifier tube
  168. EF86 replacement
  169. Super Simple Valve Pre-amp Suggestions?
  170. 6V6 P-P Amp From RCA Manual RC-19
  171. phono stage woes...
  172. stereo SE kt88 build ... abdellah diyaudioprojects design
  173. Mounting filament transformers under chassis?
  174. More impedances for Hammond 125E
  175. Troubleshooting Push-Pull 2A3 (please help)
  176. Lost a channel in my TSE
  177. 6sl7 srpp kt66 se
  178. asking about 6sn7 and 2a3 tubes
  179. help w/ Eico hf-81
  180. Hammond PT power ratings
  181. JVC/Delmonico console info
  182. my TubeLab Amps
  183. Issues with grid choke
  184. Sharp reg. for tubelab se
  185. Calibration of Mercury 1000 tube test set
  186. 6v6 music machine build help!
  187. PCF801 Suggestions
  188. el84 200V Vg2 curves
  189. What's the advantage of E-linear
  190. Tube microphonics (article)
  191. Another Counterpoint SA-7.1 question
  192. How to test a subminiature tube
  193. C3M linestage
  194. Needinfo: Tamradio SOT-850 specs
  195. Back to Back transformers
  196. UltraLinear Screen Drive
  197. UTC CG-52AX - use as plate chokes?
  198. Chassis material
  199. Fu29 & e813cc
  200. Tube rollers - what tubes for my RH84?
  201. What is meant when tubes are sold as "matched"?
  202. 1:1 transformer replace with line filter
  203. Old valve radios have any use?
  204. Know of any big 7 pin FW rectifier tubes?
  205. Decca Decola PX25 amp schematic
  206. Happy birthday....to me!
  207. Just tested the new E183CC
  208. Chassis mounting tubes off my PCB
  209. Tubelab SE with 2A3 Hum
  210. I need some help with the OPTs on a set of old 6V6GT monoblocks
  211. modified Headwise WCF headpone design
  212. 6em7 ,difference from brand ?
  213. Wavebourn Tower thread
  214. Sealed Lead Acid Batteries
  215. New ebay record!
  216. New ebay record!
  217. NFB, how to implement here?
  218. Recommended Mouser Electronics
  219. Utter novice looking for answers to easy questions:
  220. Hum Troubleshooting on My Tubelab SE with 2A3
  221. Trying to understand Power Supplies - The first Cap in a CRCRC
  222. 5687=e182cc???
  223. Series wire Antek Secondaries
  224. 300bxls vs mosfet :)
  225. 6N4P info
  226. Its alive!!! Aikido 5687
  227. Looking for advice,EL84 based Mono amp conversion/ restoration
  228. Looking for ideas
  229. Looking for curves for obscure tube
  230. tube life, soft start, cathode bias
  231. Triad N-68X Tranny for ^SN7 Aikido?
  232. RH84 with simple 5687 front end?
  233. Aikido grounding scheme
  234. measuring voltages and currents simple se
  235. Beginner's luck -- Tubelab Simple SE on first try!
  236. 6CH6 find
  237. Shielded cables - success
  238. Heater-Cathode Voltage
  239. deliberately unmatching output tubes
  240. triode heater ground question
  241. 6sn7 alternative
  242. A tube amp that will drive 2 ohms or less...
  243. Looking for a simple circuit
  244. Why does my tube amp make a scratchy, popping sound?
  245. Fisher kx-100 Recitfire problem
  246. Potentiometers - USA
  247. Tube SE amplifier with 6P3S (russian tube)
  248. Plate dissipation
  249. Need help with tube models in LTSpice
  250. D3a pentode as driver? History of this tube?

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