PDA

View Full Version : Tubes / Valves


Pages : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 [17] 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98

  1. Thordarson Dual Tone Control
  2. samsung experiments with "tube sound"
  3. PP OPT design
  4. Heater voltage drops?
  5. WE448A data
  6. How come signal input capacitors are not on every amp?
  7. Any body can help to identify this pair of OPTs.
  8. tubelab SE component mounting
  9. Pre-amp for Tube Sound
  10. Audion tube amp capacitor questions
  11. Capacitor Substitution
  12. Hello, looking for advice on a tube project...
  13. Testing my Tube Tester
  14. Is this speaker a good choice for Tube amps
  15. Suggestions for upgrading my first tube amp!
  16. Why does the Miniwatt N3 have 4 connections to its output transformers?
  17. Anyone know if there is an octal
  18. Cathode Follower, where is the 3d H gone?
  19. Sylvania 45C14M progress.
  20. Collins R-390 Audio Deck
  21. 2 stage 2A3 SET - why does the 6n6p sim so well?
  22. Hi Everyone! Your thoughts on my Yaqin dilemma
  23. Audioromy in Shanghai ?
  24. volume Pot noise
  25. Full Music 300B solid plate sound fine ?
  26. Removing cathode-bypass capacitors, and compensation
  27. Q: UL PP Instability - Anode Grid2 Snubber
  28. The Shuguang SG-50 really support 650V in the plates ???
  29. Addinging windings to an Antek AS-... transformer
  30. Supertex dn2540 CCS Rset trimmer value
  31. help with amp ohms
  32. First Kit
  33. High-End Tube preamp with ECC88
  34. ALERT! WARNING! J. SOUND LAB 300b
  35. Gott 30u tube amp (biggs of ca)
  36. Tips needed for some testing my newly built tube amp
  37. Need help for designing C3g pentode driver for 6b4g se
  38. another circuit idea
  39. EL41 PP triode strapped
  40. Odd-ball PI circuit identification request, and headroom question
  41. b+ Delay Arrangement for Power Amp
  42. Stackin' Chokes
  43. Source of IXYS 10m45s and other CCS devices
  44. Help identifing a 12ax7a
  45. EICO HF-60, rebuild and test
  46. Hum in homebuilt amp
  47. 845 Heater Power supply problems
  48. Tubelab SE choke
  49. First Amp Build, (But not complete beginner to electronics)
  50. X10 V3 SERVICE MANUAL
  51. PP kt88 amp problem.
  52. How much power do I need?
  53. Hickok TV-7 D/U calibration
  54. 12 VAC for both AC heaters and DC B+ via voltage doubler?
  55. Adding CF to SRPP to lower output impedance?
  56. BCF build
  57. 12vac heater - dc elevated question -
  58. 6V6 VERIABLE TUBE REGULATED
  59. please help identify jennen tube amp.
  60. Settings for ECC808 tube on 539c tester
  61. KEG-EAR 6L6-KT88 PP AUDIO AMP
  62. Aikido LV
  63. RH-84 voltages
  64. RIAA Tube Preamp Build (Part 1)
  65. Hybrid amplifier with ECC88(PCC88) + LM3875
  66. Triode and Input Transformer
  67. RH-84
  68. DL22N
  69. Single Tube Amp
  70. Antique radio info
  71. Alps & Panasonic pots (what's the dael? :: pics)
  72. Vintage GE Tube Amp
  73. Troubleshooting BIG hum problem. CJ CAV-50
  74. Impedance multiplier hybrid parafeed
  75. peavey heritage 212
  76. Crosley 68CR restore
  77. Question for EU diyaudio members
  78. need advises tweaking PSE 300B
  79. CounterPoint SA-12
  80. Bleeder Resistor for Choke Input Supply
  81. Large tube anode connections caps.
  82. Gyrators
  83. newbie questions about 300B tube amp
  84. EL84 SE advice for a beginner
  85. Re: Buffer with tube PCC88
  86. Transformer impedance calcs from windings
  87. Anyone came across AirTight ATM-2 schematic?
  88. Transmitter tube hybrid - Because why not?
  89. where is the output capacitor?
  90. Clarifications on role of pre VS power
  91. My poor man version of the Raven Preamplifier.
  92. GSG problem
  93. Transformer selection/brands
  94. Newbie DC heater help
  95. HF oscillation bursts at low ( < 40Hz) frequencies
  96. Why the GZ34 Rectifiers are so expensive!
  97. OPT designing?
  98. Looking for a DIY repair guy near Toledo or Ft. Wayne
  99. beginner: which DIY kit will go well with these drivers?
  100. Xindak MT-3
  101. Loudness controls
  102. Advice on replacing Yaqin MC-10L
  103. Converting Eico HF-81 to a simple PP EL84 (pics incl.)
  104. 12at7 dc coupled to 12at7 cathodyne to drive EL34
  105. First Tube Help
  106. ampex 6793 stereo
  107. RCA Victrola 8V91
  108. what to do with these tubes? (6AQ5/6AR5)
  109. Sylvania 45C14M advice
  110. Re-designing 6DJ8 circuit for the 6CG7
  111. Hi fi kits
  112. bias capacitor
  113. Question re: Signal Ground versus HT ground
  114. Schematic to a friend
  115. Newbie question about transformers
  116. Request for suggestions. Akai M8 mono amp schematic validation.
  117. Rectifier
  118. Source for transformer parts?
  119. odd order harmonic squelching?
  120. Best Current Production 6550 / KT88
  121. Wharfedale W12 output transformers
  122. Are we committing suicide?! (Asbestos in vaccum tube base)
  123. Help me to Identify this Tube
  124. GU50 socket blues
  125. New 18W build el84/12ax7
  126. Why a follower in a parafeed triodeamp?
  127. Heads up for Australian tube amp diyers
  128. build new amp from 2 vintage tube amps?
  129. Sansui AU-111 rebuild and need some help
  130. Interstage/Input Transformer
  131. VALVEKING ROYAL8 with 6p14p-EV
  132. Ergo Ella PP Amplifier Wiring
  133. 6DX8/ECL84/6F3P Baby Huey
  134. Old tube amp info?
  135. MEIXING MING DA MC 2006 Phonostage schematics
  136. Problem with a Peavey Classic 50
  137. Just what the world needs - another EL84 amp
  138. Help me pick el34b tubes
  139. heathkit SA2
  140. Need help on RIAA
  141. GU50 plate curves
  142. What tube is this?
  143. Help with GZ34
  144. Need help in modifying Roberts 770 monoblocks
  145. PP and PPP
  146. ECL82 Single Tube Amp
  147. circuit idea
  148. Need Telefunken Hymnus 5438 Dial Glass
  149. Bias probes/Am I getting true readings
  150. How to measure output power
  151. Oddblock Wooden Case
  152. Amplifier Quandary
  153. Fuse blows instantly
  154. Looking for a fairly simple Hi gain tube pre amp project
  155. Best 2a3 PP OPT.
  156. Sharing cathode resistor and capacitor
  157. Power tubes in cascode for output section?
  158. good tube service tech in Los Angeles?
  159. Proposal for a new sticky thread
  160. The History of the EL-34 and other Pentodes and Beam Tetrodes.
  161. PCF what?
  162. stupid question about heater wire to ground
  163. OTL All American Five? (or Ten)
  164. Scored a very nice H H Scott 272!
  165. Simple DIY Stereo Tube Amp with around 20W
  166. Maton Amp
  167. New Tech
  168. LS8 pre kit as an output stage for DAC?
  169. Japanese Valves
  170. B+ delay for DHT amp
  171. QQV03-20A/CV2799
  172. 0,22 0,33 0,47.....uF
  173. Most powerful SE DIY design?
  174. 420vdc supply for a tube amp
  175. PSE 2a3 operating points?
  176. Ju-Jutsu: The Ultimate Monoblock
  177. Looking for Phono Stage ...
  178. Finished my Fisher 460t-thanks
  179. Datasheet Cpk values
  180. Eico635 tester
  181. 6p3s...
  182. Help with Amp Salvage
  183. 808 SE Build
  184. how to bias my rebuilt dynaco st 70
  185. Want help - RCA Tube Manual RIAA Phono Stage
  186. Tube Pre-amp for both CD and Phono inputs
  187. Cascode Driver Oscillation
  188. 872b or 6gj5a for a homebrew bass amp
  189. how does it sound and perform?
  190. Bootstrapped long tail
  191. Thorens TEM 3200 clone
  192. Identifying this RCA Transformer
  193. Tube burning
  194. Add Standby Directly after Rectifier, or After First Filter Stage?
  195. Help with some tube ID
  196. CCS power amp bias
  197. this is EL34 tube of what model?
  198. Looking for constructive criticism on my first design
  199. Audio note kit 1 vs Meishu
  200. Tube Amp Gain V.S. RF Gain
  201. Kool-mu material for building audio transformer
  202. Buzz/Hum in Matrix amplifier
  203. Optimation PA-250AC Lab-Grade Audio Amplifier
  204. RS1003 in SE triode-UL monoblocks
  205. Bypass capacitors in Tube amps
  206. Basic question re: gNFB around 3 stages
  207. James PP Audio Transformers, any good?
  208. Seeking advice for tube amp kit on,seems to be, chinese site
  209. Tube pricing from 1981
  210. 6e5p WCF headphone amp with no cap!
  211. "How it's made" vacuum tubes..
  212. Citation I and IV phono schematic query
  213. GS-4V High-mu russian triode for RIAA preamp
  214. good source for amp chassis in europe?
  215. Help identify and replacement of ? resistor
  216. New tube amp diy kit required power?
  217. Decoupling DC heater supply between valves..benefit?
  218. The Aikido Comedy: Straight Talk
  219. Recapping tube preamp questions
  220. A tube amp that's actually a tesla coil.
  221. Tube "Orientation"
  222. 18 watt tremolo vvr
  223. Pre amp output, would this work?
  224. Aikido Power Amp.....Possible??
  225. 12AX7 questions
  226. 6550 PUSH-PULL
  227. CCS at plate? Unknown schematic part
  228. Most odd grid choke behaviour.
  229. Spec for Altec TP-404 Transformer
  230. why do wimpy drivers for 2A3 work as well as they do?
  231. Seeking advice on Tube buffer / pre-amp
  232. 8x Push-pull KT88 class A in triode mode
  233. Tube Pre dull into Tube Amp - cause ?
  234. FINALLY I can start building my GM70
  235. Russian triodes ГИ-15Б arriving in a few days
  236. Cap or resistor
  237. KT88/PP driver confusion
  238. Simple SE GU-50
  239. Darling 1626
  240. 01a DHT Preamp
  241. Suitable tubes for Gomes output
  242. phono line stage project
  243. Whats wrong with this circuit?
  244. Any Newcomb Gurus.?
  245. Preamp Tube MU Level?
  246. SRPP Paraccordion topology ?
  247. Replacing 6922 with 6FQ7 in Conrad Johnson ET3 preamp
  248. Modification of a Chinese KT90 PP amplifier
  249. Tricky Headphone Amp design for AK4396
  250. How to know voltage bias adjustmentwith this data?

Content Relevant URLs by vBSEO 3.3.2