Re: G05-802

Here's an update to my G05-802 repair. The original post is to the bottom of
this page.
I found that if I ran less than 6 TIS98's out of the 10(using MPSA06's for
the other 4) originally needed it would not run. Does anyone know why this
was the case? I am not an expert on these and I'm still learning so if
anyone would know why please tell.
Since I had one board with 10 original TIS98's I needed 2 more total to be
able to run 6 on each board. After finding two more TIS98's, both boards are
up and running.
On a side note. I have seen 3 G05-802 chassis that have TPS98's on them and
they are installed backwards, that is if you go by the printed schematics on
the board itself showing the flat side of the transistor. Is that the way
they are supposed to be installed? Why is this the case?
Each of the three boards came from different people and did not appear to
have ever been removed.
Thanks for all the help and emails!
----- Original Message -----
From: "peter jones" <highwayman2000@mail.ru>
To: <vectorlist@vectorlist.org>
Sent: Friday, October 07, 2005 5:10 PM
Subject: Re: VECTOR: G05-802

>
> -----Original Message-----
> From: "utahtaper" <utahtaper@comcast.net>
> To: <vectorlist@vectorlist.org>
> Date: Fri, 7 Oct 2005 16:45:19 -0600
> Subject: VECTOR: G05-802
>
> > I'm trying to get one going. I have attempted to replace all the TIS98's
on the board with various transistors. I have tried TPS98's(These were
originally there but installed backwards), NTE 159's and PN3569. And non of
them will run it. I have two boards, one works and one doesn't. I have
removed only all 10 the TIS98's from the good board and installed them on
the other board and it works. So to explain myself better. Both boards will
work if all ten TIS98's are installed all on either board. The problem is, I
only have enough TIS98's to run one board. So I either need to mix and match
or try to find 10 more TIS98's.
> > I'm pulling my hair out here. I ordered TIS98's from Bob and he sent me
the PN3569's and they don't work. And I bought the 159's from a local shop
and they don't work either. I spent $25 only to find the parts won't work.
>
> grab the datasheet here:
> http://www.ortodoxism.ro/datasheets/MicroElectronics/mXuwxyq.pdf
>
> it's just an average npn job, i'd try using an e-line ztx series.
>
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