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transistor

  1. Richs_Trains

    Transistor cross reference

    Hey all, Think I might have a couple of pre amp drivers that need replacing and was wondering if anyone had the proper replacement part # for a 2SC1328 and a 2SA763. I found an NTE number (199/234) but it seems that the forum does not like NTE parts and I rely on the experience provided here...
  2. K

    2000x Driver Amp rebuild

    I have a Sansui 2000x with a bad left channel. Testing I found that the output transistor TR812 was bad. Upon further testing I found that TR801, TR803, TR804, TR805, were also bad. I Already replaced: TR812 was 2SC1111 I used MJ15001G TR801 was 2SC458LG I used 2N5088 Yet to order: TR803 was...
  3. PROJECT 2501

    Electronics illustrated November 1963

    A few archived pages to share.
    • PROJECT 2501
    • Thread
    • 1963 amplifier audio electronics illustrated magazine november transistor tube vintage
    • Replies: 0
    • Forum: The Magazine Forum
  4. Soundork

    Transistor Database

    Hi all, Is there a compilation of transistors (and other components) and their modern equivalents. I searched, but was unable to find. I can also use some help identifying modern equivalents for the following transistors: 2SK 19(Y) 2SC 1047 (B) 2SC 829 (B) 2SC 644T 2SC 1047C 2SC 829C 2SC 372...
  5. TellMeWhy

    Marantz transistor substitutions

    Hi everyone. Recently I had some transistors replaced on my 2230 preamp board and the resulting sound quality is actually duller and less dynamic than before. Can anyone confirm that the transistor choices are correct? Original: 4x 2SC1000 vs. Replacement: 4x 2SC2240 4x 2SA493 vs...
  6. W

    Pioneer Sx-535 Blowing 4A Fuses

    Working on a nice SX-535 right now... came to me with both 4A fuses on the Power Supply Circuit board blown. Replaced both of them right off, powered the unit up and they blew again immediately. As it stands right now there is signal from both channels albeit quiet, heavily distorted signal...
  7. A

    Silent Night >>>>>>>>>>>>>>>>

    (Newbie) What NEW Preamplifier Transistors with an extremely Low Noise and High Gain are superior to the following: 2SC2362 or 2SC1845 or KTC2240?
    • acvegas
    • Thread
    • amp amplifier audio low noise preamplifier transistor
    • Replies: 1
    • Forum: Solid State
  8. Ronito6

    Silly tech noob Q

    Mica insulators of the size and type I need are getting hard to find. So I bought some of these http://www.jaycar.com.au/Electromechanical-Components/Heatsinks-&-Accessories/Thermal-Compounds-&-Adhesives/TO-3-Silicon-Rubber-Transistor-Insulator---Pk-20/p/HP1150 I know they are supposed to be...
    • Ronito6
    • Thread
    • heat sink insulators mica silicone grease transistor
    • Replies: 4
    • Forum: DIY
  9. Nac458

    Marantz 1030 Problem(s)

    Hello all, So there I was. I had just completed an entire re-cap for the little 1030 amp. I was excited to hit the switch and resolve the "bad capacitor problem" on the power amp board. But upon doing so, only the left channel was able to come through and I was left disheartened and...
    • Nac458
    • Thread
    • bias marantz marantz 1030 resistor transistor
    • Replies: 10
    • Forum: Marantz Audio
  10. grandpaslab

    VFETs for Sony TA-5650

    I'm sure this has been asked many times before, but does anyone have a line on real VFETs? Specifically 2sk60 / 2aj18, for a TA-5650. I've got a unit with 2 bad VFETs and I'm on the fence about whether to hang on and try to find replacements, or just part the thing out. eBay seems to be chock...
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