Oversized TO-3 TO3 like Yamaha 2SK77 and NEC 2D363 - Overview - diyAudio
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Old 9th June 2010, 11:07 AM   #1
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Default Oversized TO-3 TO3 like Yamaha 2SK77 and NEC 2D363 - Overview

I have found this types in oversized TO3 outline:

2SD699 (Darl), 2SC2442-2444-2445 (SPEC-Outline)
2SC2442 Fujitsu - photo about
TR. 2SC2442 - - BRAND : FUJI

X87 Outline hole distance = 46mm (normal TO-3 = 30 mm)
2SD372-373-373A-374-363-363A-364
2SD540-541-542-543 694 (Darl) 642 (Foto) 643 (Darl)-644 (Darl.)
2SC2220/2SC2204:
2SC2220 datasheet and Application Note, Data Sheet, Circuit, PDF, Pinout | Datasheet Archive

2SK77 Yamaha, other cover top:
图片供应IC集成电路二三极管2SK77停产无货 IC集成电路二三极管图片 阿里巴巴

2SD642 (incl. data) 2SD373 (NEC), 2SK77 (Yamaha)
and Delco DTS720 vs. normal TO-3
go to post #7 and post #29 about
Vintage Transistors
Attached Images
File Type: jpg 2SK77 + complete service pack .jpg (148.6 KB, 685 views)
File Type: jpg 2SK77 cover databook.jpg (95.2 KB, 652 views)
File Type: jpg 2SK77 Hitachi instead Yamaha.JPG (481.6 KB, 647 views)
File Type: jpg 2SK77 orig. Yamaha package.jpg (95.5 KB, 617 views)
File Type: jpg 2SK77 rear.jpg (216.7 KB, 605 views)
File Type: jpg 2SK77 on heatsink.jpg (96.6 KB, 134 views)
File Type: jpg 2SK180 Tokin.jpg (21.9 KB, 115 views)
File Type: jpg 2SK182ES.jpg (4.7 KB, 95 views)
File Type: jpg 2SD373 NEC TO-3 spec, lenght 6cm.jpg (34.8 KB, 119 views)
Attached Files
File Type: pdf 2SK77 bottom & top other cover.pdf (38.8 KB, 99 views)

Last edited by tiefbassuebertr; 9th June 2010 at 11:21 AM.
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Old 9th June 2010, 11:13 AM   #2
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Default Oversized TO-3 TO3 like Yamaha 2SK77 and NEC 2D363 - Overview

Oversized TO-3 TO3 like Yamaha 2SK77 and NEC 2D363 - Overview-II

Unfortunately the most of this BjT silicon types are developed for switching applications. But I think, some of this types are also for linear audio application. To determine this exactly the original data sheets are necessary.
Except Delco-GM all oversized TO-3's are made in Japan.
Two different oversized TO-3's you will find so as one normal TO-3 sketch drawing for compare.
Attached Images
File Type: jpg 2SC2204 Toshiba TO-3 spec.jpg (2.0 KB, 682 views)
File Type: gif 2SD372 sizes gaikei 106 - x87.gif (7.0 KB, 128 views)
File Type: jpg 2SD373 NEC vs. normal TO-3, 2SD37.jpg (79.1 KB, 125 views)
File Type: jpg Delco DTS-720 TO-3 spec like NEC-Yamaha.jpg (76.2 KB, 128 views)
File Type: jpg 2SD540 bottom.jpg (40.5 KB, 88 views)
File Type: jpg 2SD540 top.jpg (43.9 KB, 74 views)
File Type: jpg 2SD542.jpg (69.8 KB, 88 views)
File Type: gif 2SD642 sizes gaikei 266.gif (6.5 KB, 76 views)
File Type: jpg 2SD643.jpg (8.1 KB, 71 views)
File Type: gif to3 sizes.gif (40.8 KB, 71 views)

Last edited by tiefbassuebertr; 9th June 2010 at 11:27 AM.
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Old 20th June 2010, 10:12 PM   #3
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Default 2SK177B: Successor of Yamaha's 2SK77 - unfortunately other Outline

Also an amplifier equipped with 2SK77B is on the marked.
Unfortunately the outline is complete different.
About some URLs you will get mote informations:

DigitalDoMain
New SIT - old problem
2sk77
儅僋僜僯僢僋僆乕僨傿僆_SIT僷儚乕傾儞僾
Digital Domain丂惢昳忣曬乥DA 僐儞僶乕僞乕 (B-1a)
6moons audio reviews: RoadTour Digital Do Main
Digital Domain丂惢昳忣曬乥DC 傾儞僾
mazdaluce3000???? ??????????(+_
?????????????: ??????
?????????????: B-I Blog
Attached Images
File Type: jpg Digital Do Main B-1a dark 'ON'.jpg (30.5 KB, 86 views)
File Type: jpg Digital Do Main B-1a front left.jpg (24.2 KB, 69 views)
File Type: jpg Digital Do Main B-1a glass.jpg (116.0 KB, 159 views)
File Type: jpg Digital Do Main B-1a inside top.jpg (72.7 KB, 205 views)
File Type: jpg Digital Do Main B-1a 'ON'.jpg (72.8 KB, 163 views)
File Type: jpg Digital Do Main B-1a rear.jpg (45.0 KB, 93 views)
File Type: jpg Digital Do Main B-1a top.jpg (41.6 KB, 81 views)
File Type: jpg Digital Do Main B-1a.jpg (24.3 KB, 57 views)
File Type: jpg 2sk77b.jpg (78.4 KB, 149 views)

Last edited by tiefbassuebertr; 20th June 2010 at 10:19 PM.
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Old 31st March 2012, 01:27 PM   #4
ilimzn is online now ilimzn  Croatia
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You can also add the 2SJ27 to the list, it's the complementary to the 2SK77, also made by Yamaha, and never used in a commercial product.
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Old 31st March 2012, 07:13 PM   #5
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Quote:
Originally Posted by ilimzn View Post
You can also add the 2SJ27 to the list, it's the complementary to the 2SK77, also made by Yamaha, and never used in a commercial product.
Interesting. Unfortunately I don't find more exact information so as datasheet and images about google. Do you have a genuine Yamaha databook from those days?
If not, perhaps you know the exactly title of such a book.
In this case please let me know about this thread:
Exactly titles of old transistor data books from NEC, SONY and Fujitsu (1975 - 1985)
Perhaps I can order this book for copies about my local library.

Last edited by tiefbassuebertr; 31st March 2012 at 07:16 PM.
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Old 31st March 2012, 07:40 PM   #6
ilimzn is online now ilimzn  Croatia
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Unfortunately no databooks, but I do have some 2SJ27
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Old 1st April 2012, 08:26 AM   #7
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Wish these were mine.

Click the image to open in full size.
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File Type: jpg Yam-P.jpg (49.6 KB, 275 views)
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