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

  1. "How it's made" vacuum tubes..
  2. Citation I and IV phono schematic query
  3. GS-4V High-mu russian triode for RIAA preamp
  4. good source for amp chassis in europe?
  5. Help identify and replacement of ? resistor
  6. New tube amp diy kit required power?
  7. Decoupling DC heater supply between valves..benefit?
  8. The Aikido Comedy: Straight Talk
  9. Recapping tube preamp questions
  10. A tube amp that's actually a tesla coil.
  11. Tube "Orientation"
  12. 18 watt tremolo vvr
  13. Pre amp output, would this work?
  14. Aikido Power Amp.....Possible??
  15. 12AX7 questions
  16. 6550 PUSH-PULL
  17. CCS at plate? Unknown schematic part
  18. Most odd grid choke behaviour.
  19. Spec for Altec TP-404 Transformer
  20. why do wimpy drivers for 2A3 work as well as they do?
  21. Seeking advice on Tube buffer / pre-amp
  22. 8x Push-pull KT88 class A in triode mode
  23. Tube Pre dull into Tube Amp - cause ?
  24. FINALLY I can start building my GM70
  25. Russian triodes ГИ-15Б arriving in a few days
  26. Cap or resistor
  27. KT88/PP driver confusion
  28. Simple SE GU-50
  29. Darling 1626
  30. 01a DHT Preamp
  31. Suitable tubes for Gomes output
  32. phono line stage project
  33. Whats wrong with this circuit?
  34. Any Newcomb Gurus.?
  35. Preamp Tube MU Level?
  36. SRPP Paraccordion topology ?
  37. Replacing 6922 with 6FQ7 in Conrad Johnson ET3 preamp
  38. Modification of a Chinese KT90 PP amplifier
  39. Tricky Headphone Amp design for AK4396
  40. How to know voltage bias adjustmentwith this data?
  41. Strange Stability Enhancement Trick
  42. has anyone bought tubes from http://www.tangotubes.com/
  43. “Earmax / G3 / Morgan Jones / Cavalli” Headphone Amp Reissue with 6SN7 Steroids
  44. Ever heard of British transofmer company "Ro"?
  45. A friend gave me some random tubes...
  46. Replacement for 6e2 without vu
  47. PP GU50 triode strapped project
  48. Tube VAS stage questions???
  49. OT impedance help: 9.8 vs 8k
  50. popping & crackling noise from restored valve AM radio
  51. Choosing 6550 PP Output Transformer
  52. Reversing Interstage Transformer
  53. Aikido 9 pin All in One Build
  54. KT88 PP UL Design Help Needed
  55. Cayin A-300B schematic needed
  56. Please Recommend a Preamp!
  57. Which Antek transforms to use
  58. Integrated Amp as Preamp and Subwoofer amp
  59. Uses for 715C Pulse Tetrode
  60. PP KT-88 w/866A MV HT Supply
  61. EC88 (6DL4) NOS Mullard - any use at all?
  62. Advice sought on thermionic headphone amp
  63. Eico HF-81: Input Selector bypass
  64. 12b4 bass rolloff problem
  65. No Right ch sound on yaqin mc10l
  66. tester causing bias to rise?
  67. Heaters & Filaments: AC vs. DC
  68. Old HP power transformers... need some wiring advice!
  69. Old HP power transformers... need some wiring advice!
  70. RCA RS177H just dosen't sound right! Caps?
  71. silicon or tube rectifier in an EL34 SE
  72. Help original 300G LEGACY
  73. 813 Tube-Steak!
  74. Basic 12AU7 heatrr question
  75. Shipping a vacuum tube to China
  76. 6DJ8/ECC88-SRPP Tube Preamplifier
  77. Help needed: hum noise in Eimac 250TL driven by 75TL Single End Amplifier
  78. Found tons of Tubes,and many other parts
  79. Ampeg B15 Heritage Clone Help
  80. EZ80 Data Sheets, R-Lim and Max Cap
  81. Filament Voltages CT vs Non-CT
  82. Troubleshooting help needed
  83. What is it? Tube guessology
  84. Bass & Treble controls, or rather lack of.
  85. Quicksilver 8417 Power Supply Question
  86. Why a sudden distortion in treble of this SET amplifier?
  87. 5f1 Champ grounding
  88. Antitriode PP with EL34
  89. How to calculate Pout for Push Pull design
  90. Newbie Question - Power Transformer vs Isolation Transformer
  91. All tubes red plating
  92. Exceeding bias voltage?
  93. Vacuum State RTP Preamp Problem
  94. Alfred Morgan Tube Preamplifier
  95. 845 vs GM70
  96. Looking for project suggestions - 12au7 pre-amp?
  97. Contemporary tradition breaking amp schematics.
  98. ul - triode coupled screen grid resistor
  99. Optimum driver valve for an interstage-transformer-driven SE 300B
  100. 6C33C
  101. Soundcraftsmen 5050
  102. Tetra Phono Question
  103. WF tube
  104. Opt laminations isolation
  105. Heretical Source
  106. Broskie auto bias
  107. heater wiring - the Good the Bad and the Ugly
  108. AC Line Filter
  109. Counterpoint SA5000 Help
  110. Problem with ECC83 measurement values - please help
  111. Newbie Bias help ?
  112. AV305m AVVT
  113. Pot mechanical resistance and restoration..
  114. HMV Little Nipper mantle radio = 1 STEREO
  115. What's the simplest way to adjust filament voltage?
  116. GDAP-06
  117. Audio Note L6 - Schematic?
  118. Preventing HV flashover on socket pins
  119. Best "Vintage" Stereo Pres that SoftClip and lotsa Harmonics
  120. SE with PP OPT's?
  121. 12ax7/12AT7 Recommendations
  122. HELP: Eimac 75TL amp high frequency roll off
  123. unison reserch s8, let's build it!
  124. Where do super high end companies get their transformers?
  125. Tube Tester Panel Meter
  126. Attic find AMP
  127. Help getting Imax and Eb approximations for a push-pull amp
  128. Is this amp OK to buy, or is this a problem?
  129. Swirling Harmonics, can it be described
  130. Line stage with u-follower and nfb
  131. Newbie looking for help, pre-out to tube amp.
  132. Unison research integrated ampliphier schematics
  133. FET CCS anode load and RFI/oscillation.
  134. Old schematic
  135. Newbie Looking for Replacement OPTS Motorola Console Amp
  136. Merlyn- May AudioXpress
  137. How to clean tubes?
  138. does the 3A5 have the stones to drive a 2A3?
  139. New amp: 13DE7 SE hybrid
  140. My amp is motorboating, improve it with b+ regulator ?
  141. Can you identify these amps?
  142. Sowter SA01 - anyone used it ?
  143. Mikael‑Abdellah‑SE‑KT88 Bias & Voltage readings Help?
  144. Resistors and combinations
  145. thr light in pcl82
  146. Bogen L330 - Worth restoring?
  147. Supro model 24 amp transformers
  148. Those Magnificent Television Tubes
  149. Demagnetizing OPT?
  150. Real DIY fun hybrid testing.
  151. Extreme hum in EQ output
  152. 46 triode-strapped DHT spice model
  153. SET output impedance vs speaker impedance
  154. Help with layout of tube preamp
  155. eico HF-65
  156. Wirewound bias pot problem.
  157. Driver for Telefunken RS242 in class A2
  158. Help on my signal generator
  159. another tube fact or fallacy
  160. Gap in Transformer Lams - OCD Check
  161. how to test...
  162. chinese tube amp
  163. tube/valve pc-80
  164. GM-70 All done
  165. Peavey 60/60 classic series schematic
  166. preamp for reciever?
  167. Designing a Tube Rectifier Circuit
  168. Bogen RP40A transformers....what to build with them?
  169. Harmony guitar amp restoration questions
  170. Heads Up for "El Cheapo" Builders
  171. replacing kt66 valves
  172. Help with power transformer identification
  173. 6-8x el84 Per channel
  174. To vary a signal pentode to triode in stages
  175. I have 2 choices for resistive load, need opinions.
  176. Tesla PCC88 7DJ8 dual triode - Help Needed.
  177. PP6550
  178. LT1083 interesting startup problem
  179. ECC33 Driver Stage
  180. Hiraga's Improved Concertina Phase Splitter
  181. 274B a direct replacement for 5AR4/GZ34?
  182. Help power up akai M8 amps
  183. Sonic Frontiers Power 3 Help!
  184. ImPasse Preamp now online
  185. Power supply for tube preamplifier with PCC88
  186. Don't know where to start...
  187. DIY noob
  188. 300B amp cathode bypass
  189. Amp hum with Preamp off
  190. First Project with these tubes
  191. 7189a socket rewiring
  192. Hybrid rectifiers in PSUD2
  193. Feedback / experience wanted on building the Audio note L4 Integrated EL34 PP Amp Kit
  194. About 6AS7BTL Amp
  195. Output Stage Protection Circuit
  196. Silly basic layout question - AC heaters
  197. heater voltage variation for special tubes
  198. Want to build a 807 Vixen.. Looking for help.
  199. Connecting Speakers to Yaqin 10L
  200. Gyrator Filter
  201. 6ab4 tube socket mounting
  202. Any Moto heads? Need OT advice please
  203. Did I break my tube? (new blue glow)
  204. I need help with ccs based LTP
  205. 4033L- rare triode tube.
  206. Single tube linestage schematic wanted: 8CG7
  207. Tetra Sans PS
  208. Tone controls
  209. Vintage Heathkit Electronic Switch as soundcard interface
  210. K-12M extra caps??
  211. Looking for Tube Amp Kit Recommendations
  212. magnatone 280 schematic
  213. high voltage after cap. change
  214. My first tube amp
  215. Recommendations for 6888 triode operating point?
  216. Mullard 12AX7 part uniformity
  217. 6n15n-EB confusion
  218. Noob Question: Phono Preamp
  219. Transformer data required P782
  220. Snubbers on Power Transformer Secondaries
  221. CCS for 6V6 PP amp
  222. screen voltage for triode strapped pentode
  223. New Driver
  224. purpose and value importance of resistor
  225. Values for Vintage Amp's & Preamp's Paragon 12(70's) & More
  226. Help with amp please.
  227. Another Discrete Current Source
  228. 834 Triode amp
  229. Determing the reason for mystery? cap in schematic.
  230. Dyna ST70 to Dual-differential EL34 triode amp project
  231. Tube Signal to Noise Ratio / Dynamic Range
  232. fluctating bias
  233. Just tried a Wire Wound pot for volume.
  234. LED's in the cathode..
  235. Dr. Arthur Loesch
  236. Counterpoint SA-220 mods
  237. Broskie P-P Bridged Output Stage
  238. Would a member fluent in technical German please have a look at this link?
  239. Damaged tube? EL84
  240. Heathkit AA-161 EL84/6BQ5 PP mono integrated amp mod
  241. vk-2100 mod question please
  242. Heater supply
  243. 6111/6n16b - linestage noise problem
  244. OPT specs
  245. Re: Tube Line gain stage with pcc88 or ecc82
  246. Knight-kit KA-55
  247. Can I delay part of a B supply this way?
  248. Tube Preamp turn on circuit
  249. SE GM-70 for 700-800 euro?
  250. filter cap markings

Content Relevant URLs by vBSEO 3.3.2