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 99 100 101 102

  1. RIP Forum Member "Ivey"
  2. Balanced Buffer Needed with a Balanced Volume Control?
  3. valves to replace opamps in cd player
  4. Replacing capacitors on Audio Research D40 power amp.
  5. No sound and low B+?
  6. Replacing capacitors on Audio Research D40 power amp.
  7. 2 Channel Tube Amp and Sub Connection
  8. EZ125 Amp Project
  9. Yaqin MS-22b Phono Amp
  10. First post and a couple P.P. questions
  11. adding a preamp to tube power amp
  12. 6SN7 6N8S preamp suggestions
  13. 300b polarity
  14. Electrolytic capacitor vs extra triode stage
  15. WE JAN 274B Dating
  16. EICO 666 Tester Help
  17. Hickock 550X signal voltage
  18. First Headphone tube amp kit to build??
  19. Anyone owns a Dynavox VR-307 Amplifier ?
  20. NOS potted Chicago Transformer 1BC-150
  21. capacitor voltage for tube amp power supply
  22. 808 SE Design Help!
  23. Why can't I build my own ARC LS-5 or CJ PV-12?
  24. Post-mortem on a 80 year old 2A3 amp
  25. 6e5p gm70 with 6d22s?
  26. 6L6-6V6-EL34-KT88-6CA7-EL84
  27. Scheme for SE amp
  28. $16,000
  29. Hybrid power amp
  30. Diagnosis please
  31. On now! Jamerson's Ampeg
  32. BK 707 Tube Tester Mods
  33. monarch 614
  34. Separate Filament and B+ Switches
  35. Dynaco Low Power with 12AY7's
  36. PTP kits available?
  37. Which OP transformer and materials?
  38. Power of Tube Amp and Transistors Amp
  39. testing tubes
  40. current servo not voltage.
  41. Help Me, How to make Pre-amp using 12AU7 tube and Op-Amp Ic mix?
  42. 300b filament
  43. DHT SE auto bias circuit
  44. Anyone try swapping 6SN7 w/ 6F8G
  45. Eliminating Cathode Bypass Caps In SET Amplifier
  46. Nano vacuum tube
  47. Help High Line voltage
  48. Switchable Amp Output?
  49. PCB or hardwire?
  50. 27 line pre amplifier
  51. Mystery tubes on FB?
  52. amplifier discussion
  53. Mikael Abdellah KT88 SE with Cornet2
  54. 5879 to 12AX7 conversion
  55. CCDA SE output stage?
  56. Bravo V2 tube headphone amp - high pitched noise?
  57. Preamp Grounding Question
  58. SE on 300B
  59. musical paradise mp 301
  60. Newbie plan
  61. Capacitor Voltage rating Question
  62. Can anybody identify this amp?
  63. Old RCA radio; can anyone ID this?
  64. Class AB2 - Kink, how and why?
  65. 6SL7, 6J5, or 6SN7 unity gain buffer amp
  66. CCDA dissimilar triode preamp
  67. NOS NEGLECTED HIGH-END AUDIO TUBE
  68. GOSS C-core suppliers in UK/Europe
  69. Old radio -> tube amplifier
  70. Sowter 8650 in SE
  71. My Russian SET
  72. Raysonic vs. DIY tube amp?
  73. Which pins to use first?
  74. Bypass gain stage on K16LS amp
  75. Schematic help for a Pilot 505 amp please
  76. Question re: Distortion in triode gain stage
  77. Newbie needs help
  78. Marantz Model 9
  79. Is my power transformer bad?
  80. japanese 6v6 amp on youtube, anyone got the link?
  81. First attempt at tube amp.
  82. 6p3s,6N1P,6j1p
  83. 6bq5 p-p diagnosise
  84. MFA Lumi suddenly whistles (on bench)
  85. Pure tetrode and negative g2
  86. ECC85, EL84 tube amp please help.
  87. Pentode buffer.
  88. 5k:8 ohm vs. 10k:16 ohm output transformer. What is the difference?
  89. Help restoring old Maas-Rowe amp
  90. Early Sansui Valve Amp
  91. mismatched transformer impedance question.
  92. Second-hand or NOS tubes?
  93. Any suggestion for a 12AT7 / ECC81 SRPP powerstage ?
  94. Looking for High voltage double triode
  95. Will this ebay cover fit my Scott 272 integrated amp?
  96. My new find
  97. Thordarson Dual Tone Control
  98. samsung experiments with "tube sound"
  99. PP OPT design
  100. Heater voltage drops?
  101. WE448A data
  102. How come signal input capacitors are not on every amp?
  103. Any body can help to identify this pair of OPTs.
  104. tubelab SE component mounting
  105. Pre-amp for Tube Sound
  106. Audion tube amp capacitor questions
  107. Capacitor Substitution
  108. Hello, looking for advice on a tube project...
  109. Testing my Tube Tester
  110. Is this speaker a good choice for Tube amps
  111. Suggestions for upgrading my first tube amp!
  112. Why does the Miniwatt N3 have 4 connections to its output transformers?
  113. Anyone know if there is an octal
  114. Cathode Follower, where is the 3d H gone?
  115. Sylvania 45C14M progress.
  116. Collins R-390 Audio Deck
  117. 2 stage 2A3 SET - why does the 6n6p sim so well?
  118. Hi Everyone! Your thoughts on my Yaqin dilemma
  119. Audioromy in Shanghai ?
  120. volume Pot noise
  121. Full Music 300B solid plate sound fine ?
  122. Removing cathode-bypass capacitors, and compensation
  123. Q: UL PP Instability - Anode Grid2 Snubber
  124. The Shuguang SG-50 really support 650V in the plates ???
  125. Addinging windings to an Antek AS-... transformer
  126. Supertex dn2540 CCS Rset trimmer value
  127. help with amp ohms
  128. First Kit
  129. High-End Tube preamp with ECC88
  130. ALERT! WARNING! J. SOUND LAB 300b
  131. Gott 30u tube amp (biggs of ca)
  132. Tips needed for some testing my newly built tube amp
  133. Need help for designing C3g pentode driver for 6b4g se
  134. another circuit idea
  135. EL41 PP triode strapped
  136. Odd-ball PI circuit identification request, and headroom question
  137. b+ Delay Arrangement for Power Amp
  138. Stackin' Chokes
  139. Source of IXYS 10m45s and other CCS devices
  140. Help identifing a 12ax7a
  141. EICO HF-60, rebuild and test
  142. Hum in homebuilt amp
  143. 845 Heater Power supply problems
  144. Tubelab SE choke
  145. First Amp Build, (But not complete beginner to electronics)
  146. X10 V3 SERVICE MANUAL
  147. PP kt88 amp problem.
  148. How much power do I need?
  149. Hickok TV-7 D/U calibration
  150. 12 VAC for both AC heaters and DC B+ via voltage doubler?
  151. Adding CF to SRPP to lower output impedance?
  152. BCF build
  153. 12vac heater - dc elevated question -
  154. 6V6 VERIABLE TUBE REGULATED
  155. please help identify jennen tube amp.
  156. Settings for ECC808 tube on 539c tester
  157. KEG-EAR 6L6-KT88 PP AUDIO AMP
  158. Aikido LV
  159. RH-84 voltages
  160. RIAA Tube Preamp Build (Part 1)
  161. Hybrid amplifier with ECC88(PCC88) + LM3875
  162. Triode and Input Transformer
  163. RH-84
  164. DL22N
  165. Single Tube Amp
  166. Antique radio info
  167. Alps & Panasonic pots (what's the dael? :: pics)
  168. Vintage GE Tube Amp
  169. Troubleshooting BIG hum problem. CJ CAV-50
  170. Impedance multiplier hybrid parafeed
  171. peavey heritage 212
  172. Crosley 68CR restore
  173. Question for EU diyaudio members
  174. need advises tweaking PSE 300B
  175. CounterPoint SA-12
  176. Bleeder Resistor for Choke Input Supply
  177. Large tube anode connections caps.
  178. Gyrators
  179. newbie questions about 300B tube amp
  180. EL84 SE advice for a beginner
  181. Re: Buffer with tube PCC88
  182. Transformer impedance calcs from windings
  183. Anyone came across AirTight ATM-2 schematic?
  184. Transmitter tube hybrid - Because why not?
  185. where is the output capacitor?
  186. Clarifications on role of pre VS power
  187. My poor man version of the Raven Preamplifier.
  188. GSG problem
  189. Transformer selection/brands
  190. Newbie DC heater help
  191. HF oscillation bursts at low ( < 40Hz) frequencies
  192. Why the GZ34 Rectifiers are so expensive!
  193. OPT designing?
  194. Looking for a DIY repair guy near Toledo or Ft. Wayne
  195. beginner: which DIY kit will go well with these drivers?
  196. Xindak MT-3
  197. Loudness controls
  198. Advice on replacing Yaqin MC-10L
  199. Converting Eico HF-81 to a simple PP EL84 (pics incl.)
  200. 12at7 dc coupled to 12at7 cathodyne to drive EL34
  201. First Tube Help
  202. ampex 6793 stereo
  203. RCA Victrola 8V91
  204. what to do with these tubes? (6AQ5/6AR5)
  205. Sylvania 45C14M advice
  206. Re-designing 6DJ8 circuit for the 6CG7
  207. Hi fi kits
  208. bias capacitor
  209. Question re: Signal Ground versus HT ground
  210. Schematic to a friend
  211. Newbie question about transformers
  212. Request for suggestions. Akai M8 mono amp schematic validation.
  213. Rectifier
  214. Source for transformer parts?
  215. odd order harmonic squelching?
  216. Best Current Production 6550 / KT88
  217. Wharfedale W12 output transformers
  218. Are we committing suicide?! (Asbestos in vaccum tube base)
  219. Help me to Identify this Tube
  220. GU50 socket blues
  221. New 18W build el84/12ax7
  222. Why a follower in a parafeed triodeamp?
  223. Heads up for Australian tube amp diyers
  224. build new amp from 2 vintage tube amps?
  225. Sansui AU-111 rebuild and need some help
  226. Interstage/Input Transformer
  227. VALVEKING ROYAL8 with 6p14p-EV
  228. Ergo Ella PP Amplifier Wiring
  229. 6DX8/ECL84/6F3P Baby Huey
  230. Old tube amp info?
  231. MEIXING MING DA MC 2006 Phonostage schematics
  232. Problem with a Peavey Classic 50
  233. Just what the world needs - another EL84 amp
  234. Help me pick el34b tubes
  235. heathkit SA2
  236. Need help on RIAA
  237. GU50 plate curves
  238. What tube is this?
  239. Help with GZ34
  240. Need help in modifying Roberts 770 monoblocks
  241. PP and PPP
  242. ECL82 Single Tube Amp
  243. circuit idea
  244. Need Telefunken Hymnus 5438 Dial Glass
  245. Bias probes/Am I getting true readings
  246. How to measure output power
  247. Oddblock Wooden Case
  248. Amplifier Quandary
  249. Fuse blows instantly
  250. Looking for a fairly simple Hi gain tube pre amp project

Content Relevant URLs by vBSEO 3.3.2