Author Topic: Tek 465B Ser# B011156 need help with Q1028  (Read 767 times)

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Offline 460voltclubTopic starter

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Tek 465B Ser# B011156 need help with Q1028
« on: March 18, 2022, 04:45:41 pm »
On the Vertical Pre Amp board I am missing Q1028. I have every service manual for the 465 except the one that shows the early schematic. I need to know what transistor I need and the orientation of the pins on the Vertical Pre Amp board.
Thank You for any help.
 

Offline andy3055

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Re: Tek 465B Ser# B011156 need help with Q1028
« Reply #1 on: March 18, 2022, 05:06:45 pm »
Tek wiki page has an "early version " that might help.
 

Offline andy3055

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Re: Tek 465B Ser# B011156 need help with Q1028
« Reply #2 on: March 19, 2022, 03:53:48 am »
Sorry, I goofed up. It is the 465 not with the "B."
 

Offline Neil Barlow

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Re: Tek 465B Ser# B011156 need help with Q1028
« Reply #3 on: March 19, 2022, 11:13:27 am »
My early 465B manual calls Q1028 a Tek PN 151-0221.  This part number can be crossed to a 2N4258 or an MPS4258 - i.e., a fairly high-speed PNP.
 

Offline 460voltclubTopic starter

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Re: Tek 465B Ser# B011156 need help with Q1028
« Reply #4 on: March 19, 2022, 03:43:42 pm »
Thank You all for the help.
 

Offline med6753

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Re: Tek 465B Ser# B011156 need help with Q1028
« Reply #5 on: March 19, 2022, 11:25:42 pm »
My early 465B manual calls Q1028 a Tek PN 151-0221.  This part number can be crossed to a 2N4258 or an MPS4258 - i.e., a fairly high-speed PNP.

If you can't find those an NTE159 is a direct sub.
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