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

  1. BJT Bias?
  2. Preamp Squeal
  3. Hammond L101 compensation cap
  4. Powering a headphone amplifier with DC filament supply
  5. new to this
  6. miniblok 1 voltage problem
  7. How will this affect my amp?
  8. Tetra Phono Builders...got problems!
  9. yagoolar's tube amp projects
  10. Base material of GEC KT88 Feb 1960
  11. Headphone amp with 6n2p valve on 12V
  12. pcc189 for audio use
  13. Reading material
  14. 2A3 rectifier
  15. help calibrating a mercury model 1000 tube tester
  16. 866a valve test
  17. Anybody in the Knoxville area?
  18. Looking for simple Push-Pull tricks (from Baby Huey) #1
  19. Why wire an output transformer as autoformer ? (parafeed)
  20. Measuring unwanted grid current
  21. Tube companies
  22. heathkit a7???guitar amp
  23. Hi Performance Pre amp
  24. HH Scott Type 209 Amp
  25. 6l6gb PP w/fixed bias?
  26. Holy cow! Can anyone tell me why this wire is so pricey?
  27. EL34B 6N9P 5Z3P amplifier kit - any thoughts on schematic?
  28. 4 x EL84 in UL PP, 470 B+!! is this right
  29. What amp is this?
  30. PS Setup For Testing
  31. OTL designed by Tim Mellow with 4 6C33C?
  32. Bassman 100 schematic questions
  33. Quick question on this schematic
  34. Variac, how to ?
  35. Tube data sheets - inaccuracy
  36. Benny's new ForeWatt SRPP pre amplifier
  37. OddWatt PP UL amplifier from scratch
  38. OPT Impedance
  39. Rectifier Valves
  40. WE311 amp
  41. Sherwood S8000 transformers
  42. yaqin MS-12B Search for Diagrams
  43. EICO HF-30 - Schematic
  44. 12AU7 Phono Stage
  45. How to install a motor run capcitor
  46. Sanity check on B+ regulator
  47. 6B4G PPP idea
  48. First OTL breadboarded
  49. New amp build
  50. Tube Parametric EQ - Idea looking for clarification
  51. Peavey Valveking 100- static sound during warm-up
  52. My Fender Twin Amp Not Working - get your guesses in
  53. DHT heater supply
  54. MC/MM Phono Pream PCB
  55. Help Identifying Old Westinghouse Tube Amp?
  56. GM70 SE Amplifier
  57. OPT considerations
  58. Help - the pre amp I made is not working!
  59. Aikido tube connections.
  60. EL34 PP output tranny questions
  61. DC heater voltage 6 volts or 12 volts?
  62. Dynaco st70....Can I use 6 ohm speakers?
  63. Aikido vs. Foreplay
  64. I found a valve amp in my garage...
  65. Separate PSU to Amp connection
  66. cheep miniure meters
  67. cary SLA 70
  68. Help!!! My Audioromy FU29 amplifier was fried!
  69. Help!!! My Audioromy FU29 amplifier was fried!
  70. Take a look at my transformers
  71. input transformer for Simple SE Tubelab amp
  72. miniblok 2 distorted sound
  73. Appropriate replacement OPT for Fisher 30-A with 2.5Ohm Secondary
  74. For hk citation II owners\experts.
  75. Dynakit Mark III amplifier
  76. Transformer in reverse current doubt
  77. CELLINI-2 a hybrid
  78. Need help starting
  79. ARC (Audio Research) VT50
  80. mixed mode bias
  81. 2C52 datasheet
  82. Yaqin SD-CD2 tube buffer - upgrading stock tubes
  83. 12v Tube amp
  84. Is this ok
  85. 12ax7 Bass Preamp Power Supply Question.
  86. Help a newbie out with his Sherwood S-800iii
  87. A&R 4008 output transformers
  88. Kulish Circuit
  89. A little digression= read on
  90. Sweep tubes and G3
  91. CCS - Help!
  92. Another odd-ball PA amplifier
  93. 25W with 2xEL86(6CW5)!
  94. Question About High-Fidelity Magazine 195x - 196x
  95. The HEATHKIT MA-12 a MULLARD 5-10 In Disguise.
  96. who have schematic of Phenix OTL G3?
  97. CHAMP8 with ECLL800
  98. Drive requirements.....
  99. KT88 hybrid amplifier
  100. 2300 ohm vs 5000 ohm output trans question
  101. Has anyone used this regulator?
  102. Diy HiFi Supply Tram Mk2 DHT OTL Preamplifier
  103. Current mirror circuits
  104. splitter/driver stage
  105. Would someone explain this amp to me please?
  106. What am I experiencing?
  107. 6U10, 6AC10, 6D10, 6AV11
  108. My debut into the vacuum world: Yarland FV34B
  109. Resistor value tweaks for Radford STA35
  110. do you own a chinese tube integrate? does it.... smell?
  111. Needs help to find transformer
  112. 12AU7 / 12AX7 push-pull
  113. Subwoofer connection?
  114. Ultra-low Noise Valve Regulated PSU. How to?
  115. One channel has less glow
  116. 6l6 tube amp troubleshooring progress
  117. Baldwin organ transformers
  118. has anyone used a chip for an input driver to a 2A3 or the like??
  119. Good PSU for HT upt to 15mA??
  120. Edcor transformers have arrived, but really puzzled!
  121. PCL86 Tube Pre-Amp for guitar. Any Idea?
  122. Single tube, Single ended, 20W, impossible?
  123. Stan's Aikido Build
  124. Power transformer rating
  125. 7w 300b vs 350w Car audio observation (car loses)
  126. Seriously considering doing an OTL - but . .
  127. Emulating remote cut off
  128. Cheap Sakura Hybrid Tube Amp Modification
  129. screen tap on OPT
  130. Understanding Cathode Decoupling
  131. How to test interstage transformers?
  132. DIY Tube Mic
  133. Modified 6C33C
  134. Counterpoint SA-3.1 Rebuild
  135. 6V6 flare at start up
  136. Tube aging, in-circuit test?
  137. HV Regulator board
  138. What kind of top cap for 6V7G?
  139. Changing bass amp output transformer
  140. First timer wood chassis hints
  141. High voltage and heat sinks
  142. GM-70 family with top cap anode?
  143. testing 8417's on mercury 1000
  144. 6N3 Tube Preamp with DC-DC converter
  145. Question About Worn Tubes
  146. help ID 4-500 old stock tubes
  147. 6SN7 SRPP preamp
  148. Reduced Heater voltage to reduce noise
  149. ECL82 monoblock 'spud' and a question
  150. Small Tube/SS hybrid amplifier design 9V
  151. Gibson PA Amp
  152. Plate load impedance
  153. Dynaco 440 Transformer Cathode/Screen Taps 6P1P 6AQ5 UL transformer
  154. Good idle current for NOS 7868's
  155. 6N2P - WHAT THE?????????????
  156. Output transformer for 845, GM70, 813 and FU-13 - cheap and good
  157. Got an old Westinghouse radio today!!!
  158. Distinction between Driver and Output stages
  159. Need a decent chassis punch set
  160. UL P/P KT88 Class A
  161. Problem with 12ax7 phono stage
  162. LA2A parts, T4B spare
  163. Was ist das?
  164. Rset values for IXYS IXTP01N100D
  165. Dutch Book
  166. Tube amplifier chassis damping
  167. How the heck do I solve this problem????
  168. Pentode to Triode Operation
  169. AbouT the PSU II simulator & the "Cockeyed Bridge"
  170. GM70 bias & IT ratio question
  171. Transformer or choke sealed with metal case
  172. Peavy windsor tube head issue
  173. Projector 6V6 Tube Amp rats nest p2p
  174. micro pre amp
  175. Aikido - calculating Rk for new tubes
  176. Steady thumping noise in preamp
  177. Leak Stereo 20 hum and buzz problem
  178. 5V AC maining for filaments
  179. Topology for Schade
  180. Thorsten 6SN7 Line stage.
  181. 12v B+ Tube buffer 12AX7
  182. 300B preamp - best operating point
  183. home made tube amp with 12v b+ how to build one?
  184. Engineer's Amp
  185. Show My Tube Headphone Amp [Add-On Modulars Design Supporting IPOD/IPHONE]
  186. FFT for adjusting tubes
  187. Music to soothe the savage tubes.
  188. Voltage divider instead of expensive volume pot or stepped attenuator.
  189. Question about Hickok 539C
  190. Long-tail pair phase splitter
  191. LM317 calculator for filament circuit
  192. Self-Biased Cathode Follower Output Point
  193. filaments power supply
  194. Power tube buffer
  195. Latching Switch Assemblies
  196. Easy Way To Reduce 251V to 235V?
  197. EL84 Push Pull 25-30 watts
  198. Exploded view of valves
  199. Infineon BSP135 depletion mode mosfet
  200. Show us you COMPACT tube amps !
  201. HV Regulator
  202. Help with my new system
  203. Anything similar to the RNT900 regulator?
  204. The 3W Hammond 125ASE output transformer
  205. Carbon Comp vs Metal Film
  206. Different brand valves
  207. Buzz In Guitar Amp
  208. quad el84 or PP el34
  209. Inexpensive wire source
  210. to MC30 or not to MC30
  211. unbypassed cathode resistor
  212. Supro Golden Holiday Schematic Needed
  213. Does this transformer work?
  214. Max grid resistance for GM70?
  215. Stacked power supply HELP!
  216. Parallel pwr supply chokes for add'l current?
  217. Need help to verify Amperex 7119's genuineness
  218. Need help/advice on a problem with console amplifier
  219. Getting started with my VERY FIRST project
  220. PCL Vintage Amp VA1956 - transformer issue
  221. Help to Identify
  222. 300B based preamp....looking for schematic
  223. USB Oscilloscope
  224. RH84SE, use as headphone amp ?
  225. The New Yaqin/Music Angel/Meng & Others Discussion Thread
  226. Power triode bias by tube rectifier
  227. Two questions on IR volume control
  228. 25 watt output tube
  229. DC heating my 300b
  230. RNT-900 regulator
  231. KT61 Equivalent - Ping Waveborne
  232. EICO 666 meter needle moves too fast/pegs too hard...help?
  233. Eico 666 meter movement speed help
  234. Running a tube without heaters
  235. SE-BAL-SE Switching
  236. What makes is stereo?
  237. Triple Checking Calcs: metering bias with mA meter
  238. EL84 & 12AX7 Amp possibilities
  239. Weird issue with tube driver.
  240. 6E5P
  241. 6B4G / 6S4S Biasing Question
  242. Quick tube wear question
  243. Looking for a tube amp
  244. Internal placing of components
  245. Preamplifiers v power amplifiers
  246. LP2 dht driver
  247. hammond 1650
  248. reverb
  249. Load For PSU
  250. *PING* Tubechimp

Content Relevant URLs by vBSEO 3.3.2