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 99 100 101 102 103 104

  1. Driver Match for K-12G TubeAmp
  2. KT90 to KT88 with autobias
  3. SRPP DC working condition for Rk1=2Rk2
  4. NOS Russian Reflektor 6P6S (6V6) tubes were a pleasant surprise
  5. the 'sound' of a CF
  6. Found iron recycling - what possible uses?
  7. Class AB PP - is it any good ?
  8. Stereo to mono by paralleling outputs?
  9. BOX in the making
  10. How about paralleling output tubes
  11. Are they basically Borbely hybrid circuitry?
  12. Service Life at Low Plate Current
  13. Sophia Electric SE Transformers for 813 "Super Schade"
  14. 10W suitcase amp
  15. PP OT made of 2 transformers
  16. If I change B+ do I have to change the circuit?
  17. PhonoDude
  18. Lafayette Phono/Reverb /Center channel amp
  19. Seller recommendation needed.
  20. Jeffrey's Super Circlotron (hybrid)
  21. Request for obscure heater specs
  22. Jolida JD1501RC Service Manual / Schematic
  23. 80W amp with a pair of EL34
  24. Epiphone Valve Junior to HiFi Conversion
  25. Serious Distortion on my DIY Toccata Phono Preamp
  26. Voltage Change9115v/230v) of Audio Research amplifiers
  27. HF oscillation with no load, but only on one channel.
  28. Tube innards
  29. Looking for a tube amp
  30. What happens If I use too weak output transformer?
  31. Chinese amp: 2A3 6SN7 6SJ7 5Z5P push pull
  32. 6C33C based Version for Welter's Single Ended Amp (enhanced Forward Transconductance)
  33. Single Ended EL84 B+
  34. Electronic transformer filament supply
  35. Which Salas HV shunt regulator should I choose?
  36. Traced an old valve with no specs - thoughts please
  37. Dynaco PAS 3X PSU mod
  38. CCS's for CCD line amp?
  39. tube life
  40. For tube amps w/ high output Z - Parallel R cross spkr?
  41. High and low impedance output preamps
  42. Cheap & Well Made Chinese SE EL34 Amp
  43. Heathkit transformer replacement...
  44. Integrated amp will not turn on
  45. EL34, Claus Byrith amplifier, mains noise problem
  46. Need a proposal for a stereo amp
  47. 12AT7 Headphone amp
  48. 6l6/12ax7 schematics please
  49. Hybrid bridge with jfet OS
  50. Please allow me to introduce myselft
  51. Is my 6L6 amp damaged from EL34's
  52. E180F V EF184
  53. help on gain calculation with transformer for SE tube
  54. Working with constant current charts
  55. Hum and noise in small amp
  56. My project (6c33SET)
  57. EZ260A Grommes 260A Project
  58. 18A5 sound fine in triode mode ?
  59. 6GF5 sound fine in triode mode ?
  60. Muddy 6V6 Power Amp?
  61. GM 70 Schematic needed!
  62. tube simulatie models.
  63. building vacuum tubes... some questons
  64. Hot Rodded Dynaco ST-35 - Dynakit Parts Kit
  65. Fixed bias on small signal pentode
  66. Buffer preamplifier
  67. 7027a testing
  68. decade bank values for a plate current tester
  69. anyone know the dimensions of a dynakit st-70 pcb?
  70. Help on designing full DHT SET power amplifier
  71. dc coupled volume pot value
  72. 20W OTL with 6N5P, Opinions...
  73. Tube's JLH hybrid solution
  74. Curtis Mathes Console / TV receiver
  75. Marantz 8b feedback circuit
  76. Found an Eico HF-86 for sale, is it worth it?
  77. Aikido all in one heater issue
  78. Need a little help with Chinese tube Preamp
  79. Choke Loaded Const. Current Draw Amp
  80. 6550 Single-Ended Amplifier
  81. Balancing pp driver stage
  82. P-P 6C33
  83. Need help with Cornet 2
  84. More articles for the Wireless World Archive
  85. Recommendations for a valve amp kit
  86. 2 watt amplifier
  87. 1AX7
  88. 2 x 6as7 -> u=?
  89. Help with transformer
  90. Building a mu-follower stage
  91. ecl11 - ecl86 replacement
  92. Please comment on this grounding scheme.
  93. A tube-preamp with DSP-DAC-Touchscreen-and Music Streaming...
  94. First time hearing an SET
  95. Rattle can a power transformer
  96. Need better RIAA circuit for my phono amp.
  97. Constant current heating undervoltage
  98. Some tube info that I hope is helpful
  99. Toroidal output transormers
  100. cathode bypass on opt secondary
  101. Push Pull Powersupply Test Question?
  102. Recommandation please..
  103. My new humble thread
  104. KT88 single stage pp - cascode diff amp
  105. Which KT88 Brand to Buy?Sso many to choose
  106. 12ax7 perfect bias point
  107. preamplifier/driver for 807
  108. Help with Quad II hum
  109. 18K audio note output transformer
  110. Small tube amp conversion help 6x4, 6AU6, 6AQ5
  111. Hybrid never see
  112. "Next to Last" PAS Project
  113. Power supply overload
  114. Home build 6L6 pp amp buzzing noise
  115. 807 monoblocks with big PSU
  116. SET amps and crossovers.....?
  117. Sockets for 6P41S
  118. 6dj8 phono amp
  119. Jolida Score!!!!
  120. voltage boost
  121. Swinging choke value in PSUD
  122. Hum Nirvana
  123. This weekend's reading
  124. 6550-6550A-6550B-6550C - What are exactly Differences ??
  125. Interstage Transformer Questions
  126. Vacuum State FVP5A voltages
  127. Steve Bench's tube crossover - Help needed.
  128. transformer design equations
  129. some misc schematics, manley, rotel
  130. What happened to my tube??
  131. Tube Preamp Question
  132. Schematic for Pilot SP215
  133. Screen current through cathode resistors
  134. Gyrator design
  135. Any tips for routing heaters on a PCB
  136. 6EZ5 as drop in replacement for 6V6 tube?
  137. RIAA Preamp and equalization 12AX7
  138. Correct hum mods?
  139. Push-Pull from Stereo SE amp
  140. how to select transformers.
  141. Ultrapath or parallel feed apps. for 7591 amps?
  142. PP-UL amp with KT88
  143. Reuse these sockets and tube choice question
  144. Need help understanding this circuit
  145. Need a little help with a power supply I designed.
  146. Which tube Rectifier is good enough for 5902 tube amp ?
  147. Schematic for Masco ME-8?
  148. Transformer Rattle & Hum issue - Dynakit ST-70
  149. 6EZ8 (and other triple triodes) help please!
  150. Akron, Ohio
  151. 6N6P Heater and earth wiring advice
  152. united transformer corporation
  153. Capacitive v. Inductive inter-stage coupling
  154. unused secondaries on SE opt?
  155. Marco Rodint coil building info needed
  156. Scott 222B Hum
  157. how to make audio output transformer
  158. 5842 Anyone?
  159. 813 SE build
  160. Aikido LV improved psu
  161. My first HiFi project
  162. B&O 608 tube amplifier
  163. Just designed a 300b amplifier....
  164. Anyone used C3g to drive GM70?
  165. I need your help!!!!!
  166. 12au7 600 ohm output
  167. new C3g/211PSE comments pls
  168. Dynaco Mark IV Power Resistor
  169. Moondog with ac on gain & driver tubes?
  170. need help again on DIY Toccata MC Phono preamp
  171. Looking for analog Tube schematic for "analogmetric 1541a" DAC
  172. newbie needs help with tube inheritance
  173. 2A3 SETs with Edcor Iron
  174. What to do with this iron (originally from PP 7355)
  175. Just for everyone's amusement....
  176. beam tetrode calculations
  177. What are the differences between LC and CLC chokes
  178. gain and mid circuits
  179. Kay 503 Schematics?
  180. Transformer Data
  181. tube B 406 triode dick's cleo 4
  182. GE Snubber, High Current DC, and Switching Capacitors
  183. Russian EL84 - Many varieties
  184. Back From the Dead- A NOS Tube Story
  185. application for ccs/gyrator board from the groupbuy
  186. Building a tube radio
  187. Three more articles for the WW Archive
  188. Amplifier antics
  189. what about a tube makes it UL recommended
  190. 6as7 p-p with transformer phase-splitter
  191. Large power push pull output transformers, say 150W
  192. I need a schematic for a amp project
  193. Preamp resistors calculation for http://www.shine7.com
  194. Best replacement solid state rectifiers for a 400V 125 mA supply in a tube amp
  195. Dynakit PAS-2 Filament Voltage Question - replaced Selenium rectifier
  196. Vintage tubes
  197. Amp PSU standby and PA switching
  198. 245 tubes
  199. Vacuum tube clock radio
  200. First Project, need some help
  201. Graetz Scerzo Schematic
  202. 5bc3 rectifier
  203. Help me improve this PSU. (6c33 set, voltage doubler)
  204. Choke Loaded Driver Load Lines Question
  205. CCS and tube aging
  206. Tetra lives!!!!!
  207. Tube shops/supplies in Brisbane/Gold Coast
  208. AC VT25 filament?
  209. Let's show go on: Building Monster SE!
  210. Mystery 6AQ5A powered chassis?
  211. 6Y6G tube for low-voltage SE amplifier?
  212. Jolida gain and negative feedback?
  213. 1/2 of the tube for each channel?
  214. Problem with Legacy pentode driver stage
  215. 845 Operating Point
  216. Tube rectifiers
  217. D76 Inrush current limiter thermistor?
  218. New to Tubes? How to get the basics, read on..
  219. interstage tansformer impedence
  220. 2 PSU sharing the same Power transformer?
  221. Biasing amp
  222. CCS placement
  223. clueless on console
  224. Popping in stepped volume control
  225. 6by5 CRC Values
  226. Is this do-able?
  227. PCB for Gary Pimm's CCS & SS Pentode
  228. EL86 Single Ended PP Power Amplifier
  229. Diyhifisupply Billies - dead OPTs?
  230. 6H30P-DR
  231. Tube AMP and stax headphones....
  232. soft start power supply for dynaco st-70
  233. The Telefunken EF86?
  234. Can you run parallel circuits from a rectifier?
  235. Mullard 5-20 with 6L6GC's?
  236. Adding balanced input to 6N1P tube.
  237. Partial feedback (anode grid) with cathode follower
  238. 4P1L as First gain stage or in Pre-Amp..?
  239. Advice on 6418 design requested
  240. Tube lineup in an Admiral y4302
  241. John Broskie MIA?
  242. Audio Research VT 100 MKII need help!!
  243. Help with AD30 PSU build
  244. Who was the Japanese Amp Guru?
  245. 6922 vs an ECC82.....a test.
  246. Triode connected 6LW6 for SE
  247. 12AD7???
  248. New Book Review
  249. Hoax or truth about 6SJ7 (Equiv.: 6J8P/5693/CV3699/VT-116A).. ???
  250. looking for hi volt commercial power supplies

Content Relevant URLs by vBSEO 3.3.2