These transistors needed

bigkim100 · May 15, 2018

I need a quantity of 30 of each of the following transistors:

2sa945- Possibly a 2n2222 could be a replacement

2sd467- Possible replacements You can replace 2SD467 with 2SC1383, 2SC1384, 2SC2235, 2SC2383, 2SC2655, 2SC3228, 2SC3243, 2SC3328, 2SC3940, 2SC3940A, 2SD438, 2SD468, 2SD592, 2SD592A, 2SD667, 2SD734, 2SD863, KSC1008C, KSC1009C, KSC2316, KSC2331, KSC2383, KTC1027, KTC1027-O, KTC1027-Y, KTC3209, KTC3211, KTC3228, KTD863

2sb561- Possible replacements-2SC1383, 2SC1384, 2SC2235, 2SC2383, 2SC2655, 2SC3228, 2SC3243, 2SC3328, 2SC3940, 2SC3940A, 2SD438, 2SD468, 2SD592, 2SD592A, 2SD667, 2SD734, 2SD863, KSC1008C, KSC1009C, KSC2316, KSC2331, KSC2383, KTC1027, KTC1027-O, KTC1027-Y, KTC3209, KTC3211, KTC3228, KTD863

I cant seem to find any of these thru the normal distributors (except the 2n22222)
Thanks for the help
Kim

kellys_eye · May 15, 2018

The 2SD467 and 2SB561 seem to be run-of-the-mill NPN/PNP transistors - what I used to refer to (elektor-style) as TUN and TUP devices. There's nothing special about them and practically ANY low power, low voltage silicon devices will do.

TUN (and TUP) stand for Transistor Universal NPN (or PNP when called TUP) which are effectively ANY low signal silicon transistors such as the BC547/557 - here's a link to a Googl search result that lists tables of TUN/TUP transistors. Fill yer boots!

https://www.google.com/search?q=tun...AjIjbAhUEKMAKHdR_BCMQsAQINQ&biw=1855&bih=1079

Chinese suppliers will sell you a bag of 300 of them for $5

Here's 600 of assorted for under $10

https://www.banggood.com/600Pcs-TO-...ue-Assortment-Kit-p-1098096.html?rmmds=search

bigkim100 · May 15, 2018

kellys_eye said:

The 2SD467 and 2SB561 seem to be run-of-the-mill NPN/PNP transistors - what I used to refer to (elektor-style) as TUN and TUP devices. There's nothing special about them and practically ANY low power, low voltage silicon devices will do.

TUN (and TUP) stand for Transistor Universal NPN (or PNP when called TUP) which are effectively ANY low signal silicon transistors such as the BC547/557 - here's a link to a Googl search result that lists tables of TUN/TUP transistors. Fill yer boots!

https://www.google.com/search?q=tun...AjIjbAhUEKMAKHdR_BCMQsAQINQ&biw=1855&bih=1079

Chinese suppliers will sell you a bag of 300 of them for $5
Click to expand...

Thank you very much Kelly...I do appreciate the help....easy replacement is all I need in this world to keep me happy

duke37 · May 15, 2018

Check the connections.

bigkim100 · May 15, 2018

duke37 said:

Check the connections.
Click to expand...

Thank you...more than likely, I wont be blessed with the same pinouts.
Im very lucky that the original units actually have the pinout names on the body

kellys_eye · May 15, 2018

I always recommend one of those cheap Chinese component testers that will identify the lead-out, the gain of the transistor and some other parameters like Vbe - as well as dud ones of course!

bigkim100 · May 15, 2018

kellys_eye said:

I always recommend one of those cheap Chinese component testers that will identify the lead-out, the gain of the transistor and some other parameters like Vbe - as well as dud ones of course!
Click to expand...

I actually think I will buy one, they are cheap as chips

73's de Edd · May 16, 2018

The plastic Pn2222 and Pn2907 should work fine in your situation for the 2SD467 and 2SB561 motor drivers .
The Pn2222 should also fill for the 2SA945 function.
The pin arrangements, side by side , are also the same, but you have to watch their 180 degree positioning .

bigkim100 · May 16, 2018

Thank you very much ed...Im just hoping the RF section is ok....I want to play around with that like I want a hole in my head.

These transistors needed

bigkim100

kellys_eye

bigkim100

duke37

bigkim100

kellys_eye

bigkim100

73's de Edd

bigkim100

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