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  1. Red Plate,Tube runaway, glowing screen grids
  2. Dogfish
  3. Anyone ever bought this Ebay Head amp?
  4. Rogers Cadet III (Mk3) - which input to use?
  5. Recycling a TT plinth as a tube amp chassis?
  6. RH-84 Hum
  7. Regulator LD1085V Question
  8. Chasing Hum...
  9. What do you know about the 23D4?
  10. Vacuum State RTP3C
  11. Another Tubelad SE build
  12. Noisy DC filament power supply problem on an Aikido
  13. Aikido Phono Stage with Step-up Transformers
  14. 6-volt rectifier tube
  15. Replacing output transformer questions
  16. Hey SY, were you aware of this?
  17. Where is the best place to sell a pair of OTs?
  18. EL84 tube regulator
  19. Testing 6H2P on 600a
  20. Genrad 1630AV
  21. Gary Pimms "self bias ccs" - guide for dummies
  22. Using a PC as source? + "garage sale"
  23. loktal version of 6bl7
  24. RCA SE 6bq5 amp gain problems
  25. 12V AC to 6.3v DC simple supply for idiots
  26. PPAB with plate feedback, current-mirror driver
  27. LM317 oscillating in cathode circuit
  28. Help with RIAA stage schematics
  29. 829B/3E29 "Triode" Push Pull Paralleled Sections
  30. Phantom Bidders on eBay
  31. Help me choose between two designs
  32. Miller Capacitance AGAIN!
  33. Tossie's valve world site
  34. What is the purpose of resistive load at line output trans?
  35. 8608 pentode
  36. #26 pre amp
  37. my third RH84
  38. Miller Capacitance of triode strapped pentode
  39. 50 set amp
  40. Valuable Valves
  41. Allowable screen voltages in triode-connected pentodes
  42. grounding cable
  43. SS Driver and splitter stages used for PP tube output???
  44. Resistance coupled cascaded amplifier
  45. 6SL7 alternatives?
  46. Dynaco st70 vs Heathkit W5M
  47. Ceasar II - HighEnd Tube Mono Block Project
  48. Cool amp
  49. output tube blocking distortion problem
  50. HP 8903 software posted
  51. Rectifier for 900v DC
  52. How good are these?
  53. Brimar 6V6G different operating parameters to later GT?
  54. RCA RK290 console question
  55. pls help me, Buil my first AMP with 6H5C (=6AS7) tube.
  56. Simple 6V6 Push Pull Schematic
  57. remote help for RCA RK-290 console
  58. Suggestion for a 2x15 or 2x20 amp?
  59. Spud, Schade, PP, Anti-triode ECL86
  60. Posted new P-P power amp design
  61. Steve Bench LR Phono Amp. with (Sowter or Dave irons)
  62. Vintage RCA amps
  63. 6.3V/5A DC Fillament Schematic
  64. Can I use this output transformers with a 5965?
  65. Measuring Tube Gm
  66. Can I use this output transformers with a 5695?
  67. How to design a direct coupled SE amplifier?
  68. Ordered TechTube Valves today
  69. Should I buy and part out an old Hammond tube organ?
  70. 6N6P Unbalanced Sound?
  71. DC filaments for 6550s
  72. My Copland CTA401 hums , help needed please
  73. Triode connected Pentodes in a cathode bias?
  74. Transformer as a voltage gain element
  75. Russian 6p31s tubes
  76. Ixcp 10m45s
  77. rectifier limiting resistors capacitor input
  78. arc V70 blue flash in KT90 tubes
  79. Choke?
  80. EL34 PP motorboating questions
  81. GU29 damaged
  82. PSUD2 questions
  83. Help lundahl-300bxls problem
  84. Srrp output question
  85. je lab 300b
  86. SET amp using Triode-FET complementary feedback pair ?
  87. Monarch STA-100X Refurb
  88. What causes high THD in tube amps ?
  89. Cons / Pros
  90. Preamp 6v6 grid leak resistor value?
  91. Quick question about preamps
  92. Why are mesh plates supposed to be superior?
  93. 60's and 70's GE tubes
  94. What valves are pin compatible with ECC88 / 6DJ8?
  95. Eico HF-81 OPT specs
  96. Audio Research V70 mains transformer rewiring for 220 volts.
  97. looking for fairly simple project for Eico 81 OPT's
  98. looking for fairly simple project for Eico 81 OPT's
  99. New Hybrid Driver/Amplifier
  100. OT: vacuum diode AM detector schematics ?
  101. Sad News about George Wright
  102. Finest Chinese Tube Preamp?
  103. 12B4 Line Stage + Phono Option
  104. Crinkly tube getter – Is this bad?
  105. ??? Output Transformer - Silicon Steel or Amorphous
  106. Is it time for another CCS Group Buy?
  107. Am I Going to Kill This Amp?
  108. My version of the Simple EL84 or rise of the anti-triode.
  109. Intercomponent ground loop hum
  110. Connecting the heater to the cathode in rectifier tube
  111. EF86 replacement
  112. Super Simple Valve Pre-amp Suggestions?
  113. 6V6 P-P Amp From RCA Manual RC-19
  114. phono stage woes...
  115. stereo SE kt88 build ... abdellah diyaudioprojects design
  116. Mounting filament transformers under chassis?
  117. More impedances for Hammond 125E
  118. Troubleshooting Push-Pull 2A3 (please help)
  119. 6sl7 srpp kt66 se
  120. asking about 6sn7 and 2a3 tubes
  121. help w/ Eico hf-81
  122. Hammond PT power ratings
  123. JVC/Delmonico console info
  124. Issues with grid choke
  125. Calibration of Mercury 1000 tube test set
  126. 6v6 music machine build help!
  127. PCF801 Suggestions
  128. el84 200V Vg2 curves
  129. What's the advantage of E-linear
  130. Tube microphonics (article)
  131. Another Counterpoint SA-7.1 question
  132. How to test a subminiature tube
  133. C3M linestage
  134. Needinfo: Tamradio SOT-850 specs
  135. Back to Back transformers
  136. UltraLinear Screen Drive
  137. UTC CG-52AX - use as plate chokes?
  138. Chassis material
  139. Fu29 & e813cc
  140. Tube rollers - what tubes for my RH84?
  141. What is meant when tubes are sold as "matched"?
  142. 1:1 transformer replace with line filter
  143. Old valve radios have any use?
  144. Know of any big 7 pin FW rectifier tubes?
  145. Decca Decola PX25 amp schematic
  146. Happy birthday....to me!
  147. Just tested the new E183CC
  148. Chassis mounting tubes off my PCB
  149. I need some help with the OPTs on a set of old 6V6GT monoblocks
  150. modified Headwise WCF headpone design
  151. 6em7 ,difference from brand ?
  152. Wavebourn Tower thread
  153. Sealed Lead Acid Batteries
  154. New ebay record!
  155. New ebay record!
  156. NFB, how to implement here?
  157. Recommended Mouser Electronics
  158. Utter novice looking for answers to easy questions:
  159. Trying to understand Power Supplies - The first Cap in a CRCRC
  160. 5687=e182cc???
  161. Series wire Antek Secondaries
  162. 300bxls vs mosfet :)
  163. 6N4P info
  164. Its alive!!! Aikido 5687
  165. Looking for advice,EL84 based Mono amp conversion/ restoration
  166. Looking for ideas
  167. Looking for curves for obscure tube
  168. tube life, soft start, cathode bias
  169. Triad N-68X Tranny for ^SN7 Aikido?
  170. RH84 with simple 5687 front end?
  171. Aikido grounding scheme
  172. 6CH6 find
  173. Shielded cables - success
  174. Heater-Cathode Voltage
  175. deliberately unmatching output tubes
  176. triode heater ground question
  177. 6sn7 alternative
  178. A tube amp that will drive 2 ohms or less...
  179. Looking for a simple circuit
  180. Why does my tube amp make a scratchy, popping sound?
  181. Fisher kx-100 Recitfire problem
  182. Potentiometers - USA
  183. Tube SE amplifier with 6P3S (russian tube)
  184. Plate dissipation
  185. Need help with tube models in LTSpice
  186. D3a pentode as driver? History of this tube?
  187. looking for some ideas. rebuilding heathkit w-3m amps.
  188. What's wrong with the 12AV7? Try this out!
  189. old tubes
  190. weird ef86 input stage in a Philips amp
  191. table radio w/ tube amp...in the designing process...anyone do this?
  192. Question: grid current related
  193. RH84 based amp
  194. My Aikido!!
  195. ST70 clones
  196. Need help selecting a VR tube
  197. Help analysing Hammond organ circuit
  198. Stromberg-Carlson ASR-433
  199. WAHAHA! Our DIY tube amp is done£¡£¡
  200. Pentodes.
  201. making octal adapters
  202. How to cut ceramic
  203. Trans wires in parallel or series?
  204. Tube socket for ECC88, drawing
  205. Richardson 5ar4
  206. Percy Audio / Still open? / Can't seem to get any response from them
  207. CRC Filter ?
  208. PCB edge connectors... what will they do to my sound?
  209. Tranny question
  210. Anyone here in contact with Pieter from Tribute?
  211. Fisher 500C with JJ 7591S - Optimum Bias Current?
  212. Power supply resistors power ratings
  213. Anyone tried this SE trafos?
  214. Adjustable B+ and Cathode Current linestage
  215. Possibility of Tube substitution trough MOSFETs
  216. G2 overvoltage ??
  217. Toroid transformer cover?
  218. Help me to think of name for a tube amplifier
  219. All DHT Phono Stage
  220. How Set up Aria Mini 6P14?
  221. new build - abdellah SE KT88
  222. Sources for enclosures, parts, standoffs, tubing, etc?
  223. Duncan PSUII question
  224. Bench Phono Pre Layout
  225. Imd
  226. Line Level tube
  227. Wanting to start a DIY tube amp
  228. ARC VT100 driver adjustment
  229. Valve Amplifier
  230. SE OPT's in India
  231. Arcing KT-88 and GLY513 ASC 600uF - Too Much of a Good Thing?
  232. What is a "gridless control" tube ?
  233. Polytone Mini-brute II
  234. New 6N6P linestage
  235. Split supply, arrangement of gain and phase splitter tubes
  236. New Hybrid Amp with multiple inputs: Little Singer H-30A
  237. Help with my Transformer - vibrating
  238. Quick transformer question
  239. Need for twin 5U4GB rectifiers in baldwin organ amplifier?
  240. Oddwatt / Oddblock Builder's Thread
  241. Tube output stage for Buffalo Saber 32-bit DAC?
  242. Silvertone Multiplex Stereo Model No. 4092 Questions
  243. 6SJ7(6J8) + 6v6 (6P6S) SE
  244. Wavebourn Tower-III High-end hybrid amp
  245. Question - Closest Russian Analog of 12BH7A
  246. Help understanding the PowerDrive circuit anaylsis
  247. Aikido pre
  248. Fixed bias: Pots near supply or tubes?
  249. Oh, those 12AU7s again...
  250. Plitron LOW Power OPT...

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