Re: G-08 rebuild kit potential BOM

In my FAQ, I recommend the MJ15024 transistors (200-250V) over the original
MJ15003 is ~140V. Overvoltage is what typically kills these transistors.

BTW, while looking around, I found this article about some Sega Vector Mods
(nicely done). It has one of the cleanest power supply replacement "hacks"
for Sega games I have seen (I'd like to see arcadeshop add a power supply
replacement kit like that one).

http://www.ataricade.com/Simple_Sega_G80_Vector_Mods.pdf

----- Original Message -----
From: "Mit Matelske" <mit@sweeet.net>
To: <vectorlist@vectorlist.org>
Sent: Monday, July 21, 2008 3:43 PM
Subject: VECTOR: G-08 rebuild kit potential BOM

>
> All that is interested:
>
> Normal caps:
>
> 1 Nichicon - LLS2C102MELZ - CAP 1000UF 160V ELECT LS SNAP
> 6 Panasonic - ECA-1HM100 - CAP 10UF 50V ALUM LYTIC RADIAL
> 1 Panasonic - EEU-EE2V220 - CAP 22UF 350V ELECT EE RADIAL
> 2 Panasonic - ECA-1VM470 - CAP 47UF 35V ALUM LYTIC RADIAL
> 2 Panasonic - ECE-A1VKG4R7 - KG RAD ALUM ELEC CAP 4.7MFD 35V
> 2 Panasonic - ECA-1VM220 - CAP 22UF 35V ALUM LYTIC RADIAL
> 1 Panasonic - EEU-FC1V101 - CAP 100UF 35V ELECT FC RADIAL
> 1 Panasonic - EB2D470 - CAP 47UF 200V ELECT EB RADIAL
>
> Big ones:
>
> 1 Panasonic - ECE-T2GP681FA - CAP 680UF 400V ELECT TUP
> 2 Panasonic - ECE-T1KA682EA - CAP 6800UF 80V ELECT THA SERIES
>
> Def transistors:
>
> 4 ON Semiconductor - MJ15003G - TRANS PWR NPN 20A 140V TO3
>
> Cermaic resistors:
>
> 2 OHMITE - B20J3R0E - 3ohm 20W Ceramic
>
> I included the two ceramic resistors to replace the teepees I've seen on a
> lot of deflection boards. However, they add $10.00 to the price, so if
> you want me to leave them off, that is fine. Also, I was think of
> doubling the amount of deflection transistors so you could do the doubling
> mod spelled out in the G08 FAQ. It would add about $15.
>
> The normal caps will be around $10, the big ones around $30.
>
> So we are talking about $65 for everything listed above. $80 for double
> the transistors.
>
> It might be cheaper once I get everything ordered with quantity breaks,
> etc, but what I listed is worst case. I'm not trying to profit with this
> exercise.
>
> Please give me input. Any other common failure parts that everyone wants?
>
> Thanks!
>
> Mit
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Received on Mon Jul 21 23:19:22 2008