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  1. Bought a new wonderful X250 need some advice
  2. Help with irfp240
  3. An IV amp using the BS170R mosfet
  4. Nakamichi PA-5 and PA-7 Design Help Requested
  5. A40 parts
  6. DIY Speaker Suggestions to use with F5
  7. Which Pass DIY amp for lowest heat + power useage?
  8. My fist Pass Amp
  9. Semisouth Aleph J?
  10. Trouble with point to point F5
  11. Mezmerize DCB1 Building Thread
  12. New Line Stage
  13. what aleph disign is best to drive thiel cs3.7?
  14. F1 Help
  15. Bi-Polar Capacitor Help Needed
  16. Pre-Amplifier Aleph P 1.7 - why Attenuator Network after the Gain Stage?
  17. super symmetry seeking ideas
  18. Bass-ackward amp selection...
  19. What is "Pass Labs"
  20. Lame Amp Question - X'ing, Balanced Input, same as Bridging?
  21. Install a VU meter in Aleph 1.2
  22. Threshold 400A Looking for advice on restoration
  23. Looking for Threshold FET 10/e in silver
  24. UGS-DC offset
  25. New A40 built but -30V in R. channel
  26. Pass Labs amp combination for Thiel speakers, need Mr Pass' advice ! And everyone...
  27. Regulating first stage of a First Watt amplifier
  28. Pass Labs Loudspeakers
  29. aleph 5 or x
  30. Bride of Zen assembly question
  31. From whats what and which to Nirvana
  32. Found a pair of Aleph 1.0 and 1.2 shall I buy?
  33. F5 clone by Suds
  34. Which transistors?
  35. welding on the aleph 2 pcbs
  36. FET10e Channel Noise
  37. My Aleph 5 MK II Power Amplifier
  38. Mosfet testing
  39. Threshold Amplifier - Overview and Schematic Collection of all Models
  40. Threshold Fet One
  41. CheffDeGaar UGS preamp vs other or Borbely
  42. More FET noise measurements (for EUVL)
  43. Penultimate Zen transformer
  44. Best symmetrical PSU for B1 buffer
  45. I would like to see what we can do to help Zen Mod attend Burning Amp 2011
  46. help with Mini-Aleph/Aleph 30
  47. My Dream Aleph 2 Coming True
  48. Indcutor in CRC filter of PSU
  49. Switch & Volume control needed...
  50. Voltage output issue with B1
  51. PAPA'S KOAN ....... was Papa's Surprise
  52. Can this circuit using B1 buffers be simplified
  53. AM I Planning for disaster??
  54. Complete Novice Needs Help
  55. 2SJ109
  56. Is the F1 dead?
  57. seperate regulated front end for f4
  58. Display problem with Pass X1
  59. "CA-10", new Single Ended Power amp Device based on Aleph or ZEN ?
  60. capacitor
  61. Need service manual Sony
  62. A Zen I/V variant for the Saber DAC
  63. Capacitors Aging Pass X0
  64. ALEPH2
  65. Just wondering if Vic is....
  66. Pass amps for my tannoy monitor golds?
  67. 314159265358979323846264.... good rasons why?
  68. what to do whit this ??
  69. Threshold S/300
  70. Power output into 4 ohms
  71. Suggest me a preamp for my F4!
  72. Whats what and which
  73. BABY MONITOR OVER VOLTAGE APPLIED
  74. I fried someting on my F5...ugh
  75. citation 12 irf 130
  76. Pass mosfet citation 12 clone
  77. Voltage regulation on F5 power supply?
  78. speaker cone expand and contract when power on SA-3
  79. Transformer output for zen I/V
  80. FS: F5 Heatsinks
  81. MF Citation12 - MF gate resistor value
  82. Bosoz or another line stage in front of crossover with B1 buffers
  83. Threshold SA/1 diagram or Service Manual
  84. Recommend a project to fit in a Counterpoint SA100 chassis
  85. Heatsink at 2SJ109 in Aleph J
  86. Zen I/V Converter
  87. convert aleph 2 to pre for f4
  88. F5 with IRFP9140
  89. Matching IRFP244 MOS-FETs
  90. How does the current source work in a single-ended amp ?
  91. ZVP3310 - Good choice as input fet for Aleph 30
  92. Impasse with the F-5?
  93. Aleph amp questions
  94. Zen4 problem
  95. Forte Model 3 advice needed
  96. Fired up my Aleph 30 for the first time tonight...
  97. Aleph testing
  98. Balanced F5 question
  99. All JFET PLH Amplifier
  100. PS Caps
  101. Quick heatsink question
  102. Anyone Interested in Aleph PCBs?
  103. Transformer Screen & Signal Grounding Issues
  104. Pass F2
  105. Threshold S/500 power supply electrolytic replacement
  106. Thermistor Selection
  107. Return of Zen Input Scaling
  108. Aleph 4 Strickly DIY Project Build
  109. F5 where is the 4th harmonic
  110. New Nelson Build dubbed the Arch Nemesis
  111. jboz J310, 12volts, question about Drain R
  112. New guy here... My trusty 400a died...
  113. B5 caught in the wild :)
  114. F5 on batteries
  115. A question for Nelson Pass
  116. Aleph2 project
  117. Adcom gfa555 upgrade
  118. Want to build a Pass lab design....help desired
  119. AVX polypropylene film caps
  120. Aleph 3 input fets - How hot?
  121. F5 Preamp Simulation Shoot Out
  122. Would you guys mind giving me some input on my Aleph 5 PCB design?
  123. F5 Cascode and parallel output device questions
  124. Watt Meter
  125. Aleph J input capacitor (C1)
  126. passive noble 10k preamp loud buzz
  127. Building an Aleph 5...two quick questions
  128. Blown outputs (maybe?) in my Forte' 3 amp.
  129. Power supply connections
  130. Pearl Phono strange working
  131. amp selection?
  132. Troulbleshooting BOZ-J
  133. Other DIY Pass pre amps
  134. Amplifier Utilizing Two-Stage-Included Local Negative
  135. DC Couple X150.5?
  136. Thermistors and the F5
  137. Nakamichi TA-3A Tuner problem
  138. B 5 crossover
  139. Zenē MOSFET SRPP Power Amplifier
  140. Another GFA-555 With high dc offset
  141. Best Firstwatt amp for backloaded horns?
  142. F-5 Power Supply part Question
  143. A question about Push-pull class-a
  144. Modified Dual Differential F5
  145. Nelson Pass Aleph 5 - Heatsinks
  146. BoZ versus BosoZ
  147. f4 parts substitution
  148. Hoping somebody can help with De-Lite build?
  149. HELP: Trivial Balance Control for Balanced B1
  150. Fave Amp: Breadth
  151. pcb
  152. Alpeh 5 ???
  153. Aleph 4 - the right amp?
  154. X150.5 overheating (maybe)
  155. B-1 assembly, Pass boards and PEC pots
  156. Pass ONO or XONO PCB???
  157. F2 and F5 heat question
  158. Aleph 5 ,go..........
  159. Firstwatt F1J
  160. Anyone has experience on the Pass Labs X260.5 vs X350.5
  161. Value of Nakamichi PA-7 power amp?
  162. F5 - how to reduce bandwidth response
  163. SemiSouth Donuts
  164. My new members Show f 5 amp
  165. Which Pass Aleph diy board choose for no compromise headphone amplifier?
  166. input selector
  167. F2 Zen Type
  168. 400A VU meter
  169. B1 buffer w/out volume controls
  170. Biasing and cascoding questions
  171. Mosfet Citation 12 - Negative swing clip first
  172. First Watt kits? Projects?
  173. F4 sweet spot...
  174. pass-d : zen using a switched constant current source
  175. Pass X350 voltage & current
  176. F5
  177. Looking for a capacitor
  178. Mini-Aleph-J Question
  179. Hello, again, and and a request for help for a failing memory.
  180. s150 blown neg rail fuse
  181. F5 with 2SK2013/2SJ313
  182. Bi-amping question
  183. Something for us.
  184. New (to me) Threshold FET-10 HL (What to refurbish?)
  185. "Reference" amplifier
  186. Gold plated TO3 BjT's from the late 50's for Single Ended Pure Class-A Power Audio
  187. FET 10/HL to drive headphones?
  188. convert aleph 2 to aleph j
  189. convert a2 to aj
  190. Hum in Balanced Mode in Balanzed Bride Of Zen
  191. F3 vs J2 for a SET guy
  192. Aleph 3
  193. Playing with Nelson's puzzle.
  194. Bride of Zen setup and suggestions
  195. IRFP240 from eBay - real or fake?
  196. J-Low Horn Scaling
  197. woofer recommendations for F5 amplifier
  198. Pictures of your diy Pass amplifier
  199. Strange little circuit
  200. F4 power supply
  201. Balanced Zen Line Stage
  202. Aleph P with balanced shunt attenuator
  203. Zen Extension
  204. B1 buffer volume problem
  205. A little help needed with a Pass Aleph 30
  206. Aleph P1.7
  207. How different is the Nakamichi PA-7 from a Threshold Stasis?
  208. RIAA caps for Pearl and Pearl 2
  209. New First Watt Site
  210. Penultimate Zen V4 Input Fet's Question
  211. NP in Seattle May 20
  212. new SemiSouth SJDP120R085 "normally on" JFET
  213. Anyone Looking For A F5 Toroid?
  214. A blast from the past .. PAPA1
  215. Zen9-like Preamp for Power Followers
  216. New caps for my SL-10: which one?
  217. f5 power up issue
  218. grounding issue with F1
  219. IRFP9240 Fairchild where to buy it?
  220. Boiled Water Buffer
  221. sic NPN (SAND) upgrade for D1B1??
  222. Pass Labs B4 crossover questions
  223. 400A Overheat ??
  224. strange behaviuor of F5
  225. Case for a PASS amp
  226. Nakamichi PA-7 and PA-5 amps
  227. Forte Model 1 needs new toroid transformer I think...
  228. 10 uf Aeon cap availability for B-1?
  229. output impedance of Pearl ?
  230. Use Mercury-vapored Lamps for Zen-Enlightment?
  231. Building the "CodeNelson" Power Amp
  232. Mica Insulators for Toshiba 2SJ201 & 2SK1530?
  233. Trojan warnings?
  234. looking for the PCB 22kw amp
  235. Difference in B1's
  236. This is some FET !!!
  237. an absolutelly pass labs off topic
  238. Toshiba 2sk174BL at Mouser
  239. B1 and impedance matching?
  240. Class A mosfet idle issue
  241. X2_Preamp quetion
  242. UGS preamp for sale?!
  243. It works and doesn't Hum!
  244. Dynamic Bias - Active Bias - Automatic/Self biased - Overview wanted
  245. J-JLH or PLH-J ?
  246. Swapping Threshold S & SA frontboards.
  247. B1 question
  248. Fairchild Amplifier A00-6
  249. Spare faceplate for S/500 ?
  250. Help needed

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