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  1. Ping ** Nelson Pass
  2. Pass kits
  3. BA3 preamp hiss
  4. B1 Issue
  5. Packing Up The Lab
  6. Developing a Regulated Dual Rail Power Supply For FirstWatt Amps
  7. Problem with needle on XA30.5, help!
  8. Hybrid A-class retro amp
  9. Transformer p-s single stage Triadtron pushpull
  10. Pass Ono oscillation
  11. Pass F5 dual mono transformers wiring, ground design
  12. 50w Single-Ended BAF2015 Schade Enabled
  13. aleph 5 with brian gt boards
  14. Linkwitz Open House May 14 and 15
  15. New circuit based in NP CSX
  16. Which Amp To Build?
  17. 2sk170 vs lsk170 which is better in sound quality?
  18. Did Infinion buy the technology from semisouth?
  19. Why IRLB3813 and similar (strange) low voltage devices?!
  20. ACA input impedance
  21. Threshold SA/30s vs 3.9e
  22. Quasi Complementary F4 (inspired by SiC)
  23. F3 and 90db speakers and passive preamp??
  24. are there SMD replacements for k170 j74
  25. Dual pre output? Aleph L clone
  26. Aleph J build and a few questions
  27. Nakamichi PA7II: HF noise-oscillation issue
  28. PCF in F4-amp ?
  29. Value of bias on Pass Labs X0.2
  30. B1 clone - output on one side only
  31. Threshold 800a
  32. Inspired by FW M2 AUTOFORMER
  33. Pass Labs Xyyy.? , checking/adjusting offsets ,Iq and gain
  34. Why do all of the Fx-Amps have one shared PSU ?
  35. B1 has died
  36. Will these Heat Sinks work???
  37. Are distortion ratings accurate for most amps?
  38. FW Announcement
  39. Me and My new F6
  40. I'm scared.
  41. Convert a Pass Labs INT-30A from 110v to 220v
  42. Schaded F6 P-N cascode with very low THD
  43. First Watt F1 PCB
  44. Average cost of a Pass F5
  45. Rectifier swapping
  46. The UPDATED Penultimate Zen 4
  47. need advice first First watt
  48. Predrilled Heatsinks, bracket etc at Diystore!
  49. Balanced pre diy for Aleph 30 clone
  50. F5 input
  51. Ono Phono:
  52. Simple Schade feedback without transformer
  53. F5 - It Works but some problems ...
  54. F6 with PCF
  55. Upgrading my Pass Aleph-X changed the character of the amplifier.
  56. Pass B1 Buffer Preamp help
  57. The F6 build of the century :) (I want to learn everything)
  58. Using transformer gain like first watt M2?
  59. LSJ177
  60. Threshold Stasis 3 in Jeopardy
  61. Rectifier bridges/FRED recommendations
  62. Stasis - tantal condenser
  63. First Watt AMPS stacked
  64. Zen Bulb Amplifier
  65. Positive Current Feedback simple Zen amp
  66. Aleph J question
  67. Aleph3 with Eminent Technology 8b
  68. The V-Fetron Comes To Life
  69. Pass Labs XA-30.8
  70. Paralleling Aleph 3
  71. Heat-Sinks
  72. Hammond 159zl as clc choke
  73. Hammond 159zl as clc choke
  74. 1977 20w class A little help please.
  75. Experimenting with Positive Feedback
  76. cl60 thermistor in BA3 preamp
  77. I really interest the ACAkit, but?
  78. Threshold Stasis 3 biasing for dummies
  79. who explaim me the function of s1
  80. New S450e owner,where can I find the service manual manual?
  81. Pass Aleph P : which one?
  82. Threshold 400A Cascode
  83. Pass Pearl 1
  84. 400A's on/off flip flop flipping and flopping.
  85. Please help diagnose bad oscillation
  86. B1 bandwidth 700kHz -3dB: what's the limiting factor?
  87. B5 Crossover Question
  88. Super Triode Connected Aleph CCS Zen Amp
  89. Looking for amp project similar to Aleph3 but more power
  90. SiC Mosfets for A class audio, eg Zen variations?
  91. Tall ACA Build Prelim
  92. Threshold S/300 optical, turn-on thump & offset
  93. Pass B-3 preamp build (sort of)
  94. New Aleph mosfet source resistor fire
  95. All MOSFET Class A headphone amplifier
  96. Threshold 400a bias issue... Yes another
  97. X150.5 XLR Pins
  98. Another SIT amp
  99. help to set dc offset to threshold s450
  100. aleph 1.7??
  101. jfet inplace of bjt for vssa
  102. Tri-amp with two B1 Buffers. Looking for opinions on setup.
  103. Tri-amp with two B1 Buffers. Looking for opinions on setup.
  104. B1 Buffer Jfets alternatives question
  105. Pass B1 output cap value
  106. passlabs and Firstwatt Questions
  107. The eSCAPEd Goat MkII
  108. Skinning The Mu Monster Cat - Mini Style
  109. Do First Watt amps do as well into 4 ohm loads? Nt
  110. Building F5 monoblocks in Apple G5 cases
  111. Physically Stacking Class A Amps
  112. Sony TAN 5550 Vfet updates possible?
  113. LIVE Lab Cam
  114. Threshold S350 schematic help
  115. Aleph J
  116. mini Aleph hum
  117. Threshold SA/1 voltage change
  118. Crackling in right channel of DIY F3 amp
  119. Pass Labs x.150 Problems
  120. F6 amp with SemiSouth SJEP120R100
  121. Generic Power supply for first watt (or class A?) amps
  122. F5 increased gain followed by failure
  123. questions about aleph 2
  124. Pass Aleph 2 with IRFP 140.
  125. where to buy 4u chassis heat sinks
  126. F6 Turbo
  127. F5(25W) help with parts and design
  128. Better rectifier for the SIT 1
  129. Need recomme
  130. Amp Camp or Aleph Mini
  131. Found this on my puter, and it's not on Google Images
  132. Holiday Live Streaming
  133. OT: Threshold S/350e speaker terminals
  134. Two Transformers, Two Chassis - Grounding???
  135. Aleph 3 clone strange behaviour
  136. ACA modification with Edcor transformer
  137. F5 low output
  138. Commercially Available F3/ ZV9 PCB's?
  139. Balanced F5 Question
  140. 2 problems with F5 - seeking solution
  141. Zen with GA10JT12
  142. Necessary transistors for f5t built
  143. Necessary transistors for f5t built
  144. B5 crossover question
  145. Adcom GFA 5800 Bass
  146. Pass labs SR-1 speakers which pass amp??
  147. PSU difference between F5 and F5T (connections of secondaries)
  148. F5-HA Build Thread
  149. BOSOZ and balanced headphones....
  150. First Watt F5 self etching boards
  151. ACA Concept II
  152. ACA active speaker project
  153. Trying to build Aleph 30
  154. Heasinks 300 x 150 x 83mm anyone?
  155. ABFAB Builders Club - building The eSCAPEd Goat Mk I
  156. DC Coupled ZV9/F3?
  157. New NP hpa-1 headamp
  158. The Living Legend
  159. Choice between F5 and F6
  160. Very First Attempt of PCB Layout Using Design Spark (Please Check)
  161. "F5" SE
  162. DIY FirstWatt F4 and McIntosh C48?
  163. Is the B1 what I'm looking for?
  164. Convert a Pass Labs XA160 from 110v to 220v
  165. music signal in ground F5 PS?
  166. F5 power supply to high, solution?
  167. I need a very good fet line preamp circuit for wm8741 dac.
  168. www.passdiy.com uses an invalid security certificate
  169. LuminAria Article Available
  170. Making the Nelson pass crossovers warmer
  171. Increase gain and output power of my F5?
  172. Class A ampliers and lower impedance loads
  173. Running Transistors Cold
  174. F5 Turbo V3 monoblocks 32v dc rails psu
  175. BA-3 Preamp Fairchild/Toshiba 500 ohm 1K ohm pot question:
  176. Schade circuit using lovoltech lu1014d
  177. New Toshiba Mosfets
  178. Sticky Post Cleanup
  179. Is it ever okay to defeat grounding?
  180. Output impedance of BA-3 as preamp?
  181. Steve Jobs' Hi-Fi
  182. Threshold SA/2 which Version? Upgrade?
  183. Aleph 30 diy - total beginner
  184. Official M2 schematic
  185. A proper modified Zen-drive?
  186. Jfet Sziklai Single ended
  187. Newby with F6 DIY service questions
  188. Are There True MOSFet Compliments???
  189. Schade circuit using IRFP240's
  190. Which Pass clone did I really buy?
  191. F3/SIT Variations
  192. BF862 instead of 2sk170?
  193. Pearl 2 and B1 Build Pics and Help Question!
  194. BAF 2015 Coverage
  195. uC + 2xMCP42100 to control LDR attenuator - some measurements
  196. Pass Labs XA30.5
  197. A question for Mr Pass
  198. Which Pass amp combo for active Altec system
  199. Transformer temperature
  200. Concerning P3, BA-3
  201. building b1 preamp distortion problem
  202. Aleph 3 Bias
  203. Is's this the last release?
  204. Pass - Amp Camp for headphones?
  205. Parallel Aleph 3 or something else...
  206. Questions about the aleph 5
  207. HEAT SINK DEAL ALERT!
  208. BAF 2013 folded cascode LSK Pre line amplifier adapted for strain gauge cartridge
  209. Dual Mono setup for an F6
  210. Need for semiconductors testing/matching board?
  211. Siliconix Mosfet -vs- p-channel issue ?
  212. BA-3 gain stage advice
  213. Why all these 2K2 resistors
  214. The new line X point 8 voltage
  215. F5 - higher gain changing sonic signature
  216. Aleph J Case - would heatsink be ok?
  217. Which first watt amp is right for my 95dB speakers?
  218. Pass Aleph J or F5 Turbo kit
  219. NP talk at the California Audio Show 2015
  220. Amp Camp AMP (ACA) returns to the diyAudio store!
  221. Upgrade F5 to F6
  222. Help with simulation of the F5
  223. B1 buffer with gain?
  224. Pass Aleph 0 on ebay
  225. Mosfets: Single pair vs multiple pair at same bias
  226. ultimate bosoz
  227. Preamp input selector and common ground(s)
  228. How to test used caps?
  229. Smoking F5 from too much bias, still working but...
  230. Forte Audio 1A decoupling first stages from output stages
  231. Transformer voltage ?
  232. Multichannel Mezmerize B1 or Pass B1
  233. Cubie3
  234. why no input HF filter in many B1 variants?
  235. Aleph J finished -- Thank you Mr.Nelson
  236. F6 Illustrated Build Guide
  237. J-Fet in F5
  238. Heat dissipation on a F5
  239. Amp Camp Amp V2
  240. Threshold 800A Moving Coil Meters
  241. F5 trafo
  242. What is the difference in VFET1 and VFET2 sound?
  243. J2s with paralleled channels
  244. Pass Labs China/Ebay?
  245. Adcom GFA-555
  246. UGS-muse preamp GB
  247. Nutz, Panasonic is discontinuing my usual power supply caps...viable alternatives?
  248. Awesomeness of this community
  249. IRFP240, 9240
  250. A Pass inspired SE MOSFET amp, single supply

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