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. Sophia Electric 300B 2.5V Mesh Plate Tubes
  2. benifits of auto bias
  3. KR Enterprice
  4. Preamp Boards From Hong Kong
  5. earthing
  6. Best sounding medium priced EL34 tube?
  7. 6CA5 Rectifier - B2Spice Model
  8. Help needed for a 6L6 Push pull amp
  9. constant current filament regs
  10. 6SN7 Basics (Newbie)
  11. Anyone tried the EH fat bottle 6CA7?
  12. TJ Tubes
  13. My tubes are going down. HELP !!!!
  14. Tino Zottola...where are you ?
  15. Lilliput amp
  16. filament rails
  17. Ss Diodes??
  18. Tube mic preamp
  19. CCS Filament Regulators for split filaments
  20. Quicksilver 8417 power supply caps?
  21. Audio Research LS7
  22. simple valve preamp
  23. valve preamp
  24. stand by switch or not?
  25. Omega Grand 6 and which amp?
  26. Line amp to speakers
  27. a bit more bass?
  28. Output transformer application help please.
  29. 5687 pre...some problems
  30. Recommendations needed for designs of PP pentode strapped as Triode
  31. KT88 push pull noob questions (sry)
  32. Need help identifying Stromberg Carlson Amp
  33. help needed diagnosing Grounded Grid power supply
  34. Building a tube Model????
  35. EL34 best for triode strapping ?
  36. Subwoofer amp
  37. Replacing Valves
  38. help me on 845 scheme....
  39. Help valve newb salvage some old TV tubes
  40. Cathode follower distortion results
  41. Bullet Proof 6L6GC Recommendation PLEASE
  42. newbie recomendations please
  43. NOS Tubes
  44. Audio Research CA-50 tube rolling
  45. OT on Decaware SE84C-S
  46. Change PP Amp Into Phono Pre?
  47. pl84 ore el84
  48. VTL Compact 100 Monoblock x 2.
  49. Battery bias a 6SU7 in the 300b billies
  50. Speaker impedance roughly 6 ohms, 2A3 SET...
  51. B2 Spice SE tranformer parameters
  52. Determining cap values (old radio)
  53. thoughts on 300b operating points with 3k output
  54. Grounded Grid wiring question
  55. PP-Triode , PP-UL , PP-Pentode-strapped-as-Triode
  56. Found some EC8010
  57. SE PX4 or PX25 amp, anyone built one????????
  58. HAL-O Damping Instruments
  59. An intriguing 6S45P direct coupled 300B amplifier
  60. difference between Cayin and Jolida
  61. 417a line preamp help
  62. kenwood trio el84 push pull schematic
  63. Any comments on this design?
  64. Amp for speaker testing
  65. Shielding preamp power supply
  66. Troubleshooting EL34 push pull amp
  67. amp input volume
  68. What Mullard 12AX7 is better?
  69. Universal audio / Avalon mic pre schematics
  70. Since transconductance amps has become so popular lately...
  71. Mecanical PSU hum
  72. help i.d. this amplifier
  73. Question about a hybrid PSU design
  74. 35Z5GT half-wave rectifier
  75. Riviera 725 guitar tubes amp
  76. Best place to use 2 Jupiter Bee caps in tube amp?
  77. what rating for diode of 450Volts DC
  78. Telefunken 6L6GC ???????
  79. Why are my amps doing this?
  80. How to calculate the gain of an input-driver stage?
  81. 6L6 vs EL34
  82. protect your amps
  83. Snap Ring Octal Sockets
  84. Suitable operating point for 6SN7 as a differential driver ?
  85. Suitable rectifier
  86. 6N1P & SV83 mu stage driving 845?
  87. Has anyone built a transformer coupled preamp?
  88. Circuit diagram for RCA vintage 6BQ5 amplifier?
  89. Driver valve discussion
  90. Help to choose the tubes!
  91. Why hum in one channel only?
  92. DC heater noise WORSE than AC
  93. Rdh 4
  94. 900v B+ Silly time.
  95. tube rectifier arrangement
  96. Matrix Amp?
  97. Dynaco Stereo 70 amplifier
  98. Ultimate power switch?
  99. AC or DC current for 300B and 2A3 tube filaments ?
  100. 0.1uF @ 3000V Ceramic?
  101. Power Triodes in current production
  102. Anyone in the world identify eico trans?
  103. Mullard 5-20 in triode mode
  104. THX certification, or integrated near THX Quality,
  105. Feedback resistor on Baxandall tone stack?
  106. SE Pentode or PP Triode ?
  107. how does one "voice" a tube amp
  108. Musical fidelity Nu-Vista
  109. Tube substitutions in Heathkit W5M
  110. PSUD2 question
  111. 6L6 class A P-P CFB amp
  112. i have a matched pair of 3cx1000a7..
  113. Different silvering patterns on tube tops?
  114. Designing Guitar Amp's Project
  115. Help with amp rebuild
  116. Mystery (to me) phase inverter?
  117. Biasing
  118. SE KT88 Amp
  119. Good design?
  120. Auto Biasing
  121. nuvistor MC step up
  122. Corian for tube amp?
  123. 6AQ5 Line stage?
  124. 6550 o/p stage
  125. Help with finding preamp schematic
  126. AVO data for 8417 (Quicksilver) tubes
  127. Any experience with this nice toroidal OT?
  128. 300B SE cathode feedback to grid?
  129. hummmmmmm?
  130. ERO KP1832 Bypass Caps for sale
  131. no bass makes pedro a whiny boy
  132. Iron, glass, sand and lead.
  133. Is this any good? Considerations
  134. 2A3 SET Output Transformer opinions/recommendations
  135. My 6C45 DC 6C41, advice wanted
  136. DIY valve
  137. A good SE project?
  138. who will build me this special "line tubeamp"
  139. PI filters
  140. Designing a simple dc filament supply?
  141. Rogers Cadett amp
  142. HI & a few words/questions ...
  143. 6d22s
  144. eBay
  145. Chassis layout for Stereo JE Labs 300BDX
  146. Output transformer help
  147. CAD Program for Tubes
  148. 801A/816 tubes wanted
  149. This little thing might save your life!
  150. What happens if I loose the cathode bias?
  151. beginners ecl82 power supply
  152. 2MHz, High voltage source?
  153. beginner's ecl82
  154. Handmade Electronics Metal Punches?
  155. EL34 types
  156. Spice Model 6CW4
  157. El/pl 519
  158. Euridice symetric to Amp?
  159. use of 6dj8 as driver on a direct coupled 2a3 se amp
  160. Western Electric 275A Schematic
  161. Where to source 833 power tube
  162. capacitor reactance
  163. Overvoltaging resistors
  164. EL84 Push Pull amp.
  165. Power supply load capacity
  166. Tube preamp problem
  167. E88C (6DL4/ 8255), any circuit for it?
  168. Is there a name for this drive method?
  169. 6BM8 Question
  170. Tube mic preamp/mixer
  171. Please cast your votes..or make a suggestion or 2
  172. RIAA in LTspice
  173. Parallel ECC82 comment please
  174. A push-pull amp i can live with
  175. Sub-miniature russian amp help
  176. Tube Optical-Isolation Unit
  177. MKP in the Powersupply.
  178. 6SN7-GTB Globe (Chinese)
  179. 12BH7 Specs
  180. Is this worth my time?
  181. choke value
  182. ipod + tubes
  183. Leak tl/25+ OPT selection
  184. Gabevee's Maggie (MAG1515)
  185. Can partial feedback be as effective as global fb for decent damping factor?
  186. Which trans wire is which?
  187. What's wrong with this tube?
  188. F: great sound control with ECC82
  189. 30W UL 6L6P-P amp
  190. 300B stereo SE amp and PP2A3 monoblocks
  191. 6S45P matching
  192. Inductors made for crossover in an amp?
  193. PX4 or AVO44 or AV044 based SETA
  194. power conditioning
  195. Microphone preamp with compressor
  196. Current production rectifiers
  197. mu stage help...
  198. Non-Polar caps to cathode bypass
  199. 5u4 / solid state switchable supply
  200. 12AX7 sound ... going with the trend
  201. 6L6 PP Design Recommendations?
  202. EL 34 30W ultra linear
  203. Convert Audion Silver Knight PP monos
  204. Too much gain
  205. The long lost linear gain stage
  206. Philco power tranny diagram/5u4 supply
  207. Kt88 Se
  208. supersize me, please. (powersupply)
  209. Seeking advice on "Circlotron" cross-coupled feedback OTL design
  210. Best 6CA7?
  211. ECC99 line preamp
  212. coupling caps???
  213. variable regulated negitive grid supply
  214. hum loop advice
  215. Against all odds...
  216. 6as7 se amp
  217. Help .. tube amplifier .. 1st !
  218. winding a toroidal pp output
  219. solid state Vs Tube Rectification
  220. Cryoed Tubes...what To Expect?
  221. I'm looking for 6H13C tubes
  222. Which ST-70 ?
  223. Some questions about Van Scoyoc X-coupled splitter
  224. Quicksilver 8417 bias runaway?
  225. Most effective use of valve pre & active xover
  226. Tube possibilities for 2.9k-ohm speaker?
  227. Help on Preamp Mute Switch
  228. Fixed bias supply problems...
  229. Help with VTL preamp...
  230. question about 811A and 572B
  231. Dual Stereo Cathode Folower Setup
  232. tube tester
  233. Audio Innovation 1000 SE
  234. 6as7 PP Schematic Help
  235. Newbie Question: Need help diagnosing a problem, tubes on, music fades out quickly
  236. 7591EH failure
  237. opt frequency response
  238. Anyone got any opinions on this?
  239. My ForePlay Processor Controlled Preamp
  240. Tube ghetto blaster ?
  241. Help trouble shooting
  242. "The Fisher" tube amp 7189 output tubes
  243. UTC output transformers specs
  244. Regulation options for 807 g2
  245. My Mullard 5/20
  246. Anyone tried Black Beauty caps??
  247. KT88 power amp
  248. High voltage regulator
  249. Filament voltage ?
  250. Unity Gain Unbalanced to Balanced Phase Splitter

Content Relevant URLs by vBSEO 3.3.2