Re: k6100 spot killer TPS98's

From: Jeffrey Matthews <spender1111_at_earthlink.net>
Date: Fri Feb 01 2013 - 22:01:36 EST

Hi;
With regards to a replacement transistor, I have always used MPSA06's for Q600-602; Q700-702; Q801; Q802; Q901; Q902; Q904 and have never had a problem to date.
I hope that helps.
Jeff

I found the following in the 6100 FAQ Guide:

"Very infrequently, you may have problems with some other transistors
in the X/Y amp section of
the board. Most of the other transistors that populate the deflection
board (Q600-602, 700-702)
are type TPS98 and are not easily found anymore. The good news is that
TPS98 is equivalent to
the PN3569 and the ECG or NTE 194. All Electronics (800-826-5432)
usually has PN3569
transistors in stock."

Mouser has them in stock:

http://www.mouser.com/ProductDetail/Central-Semiconductor/PN3569/?qs=sGAEpiMZZMsTKkj12KWLXuW5oDYpP%252bzxlnbYa3cIV1Y%3d

Though I would check the pin outs and make sure they are correct.

I hope that helps!

Thanks
Grant

On Fri, Feb 1, 2013 at 3:02 AM, David Shoemaker <davids@oz.net> wrote:

Have a 6100 that I am working on, I put a LV2000 in it and recapped the
monitor.  Replaced a blown transistor in the HV and did resistor upgrades in
HV.



Monitor turns on and spot killer lights immediately.



I swapped deflection boards with another working and the monitor comes up.
So something is wrong in the spot killer.



I checked the input resistors and am going to start on the transistors next.
But two of them are TPS98’s.  Which I don’t have and can’t find a source
for.  I have seen reference to MPSA06’s being used instead (those I have
some of).



Any opinions?



David

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--------------------------------------------------------------------------- ** Unsubscribe, subscribe, or view the archives at http://www.vectorlist.org ** Please direct other questions, comments, or problems to chris@westnet.com Received on Fri Feb 1 22:02:08 2013