Sega 1982 Sega 1982 Sega Star Trek Electronic Component Replacement Lists:
For many folks, the most difficult part of any restoration project is repairing the circuit boards. Aside from troubleshooting the circuitry, the next greatest challenge is purchasing the required components. The hardest part of doing that is simply figuring out the part numbers. The art of determining exactly what to buy and where to buy it is called sourcing. Over the years, I have been relatively proficient at this task. I am providing the following lists in the interest of helping others to repair and maintain their machines. I endevour to prevent errors, but you are ultimately responsible for your own projects. I will not be held responsible for costs or problems related to errors in any list on my website. If you encounter an error, I would appreciate it if you email me a notification of the error so that I can correct it.
The following parts lists are not complete BOM's. The parts listed are only recommended to be replaced as part of an overhaul as they are the most likely to cause failure. If there is a part missing from a list that you would like added, email me with your request and I'll try to find an appropriate component for you.
Transistor Substitutes Introduction:
I have recently been sourcing components for wg6100 and Sega GO8 (and other vector) monitor rebuilds and I've collected some useful intel. I know that it can be a royal pita to source the big 2N3716 (NPN) and 2N3792 (PNP) and 2N6259 (NPN) transistors. They are not impossible to find (i.e. Bob Roberts, Newark, etc.) but sometimes they can be hard to find in stock and for reasonable prices. Worst case, they come from the USA by mule or the UK by sea-monkey and you have to wait for a few weeks or longer to get them.
I have seen posts in the past asking if there were any subs available... well, there are plenty, so here you go.
All of the substitutes that I have listed below should work, but I have not tried them all personally. Other people have tried and proven many of them, if not all. Many of them are actually superior to the original device. I just went through all of their datasheets, all of which I found on the Digikey site. The parts with the parameter (ft = 2 MHz) are known to work okay. The original 2N3716/92 parts have ft = 4 MHz and so do most of the subs listed below.
Any part having similar parameters such as...
...will work as good replacement parts. All of the parts listed below meet these requirements.
If anyone tries any of the parts listed below and it fails and is known to be the root cause of failure, please email me and let me know. I will add such reports to the list or remove the part from the list.
Before I make this next statement, I want to say first that I have the greatest respect for Bob Roberts. He is an honest and very experienced and knowledgeable person. He has contributed immeasureably to the arcade hobby and business for many years and the world is a much better place because he is a part of it. That said, I also want to say that although Bob's monitor rebuild kits are wonderful, you must be aware that Bob's GO8 kit comes with 2N3916 transistors. These are sorely inadequate for the GO8 and they WILL fail almost immediately after installation and most likely lead to the immediate destruction of several other components as well. Many people have learned this lesson the hard way. Bob has been notified of this but as far as I know, he has not changed his kit contents.
DO NOT INSTALL 2N3916's in your GO8 monitor !!! You have been warned.
2N6259 (NPN) Substitutes for Sega G08-003 Color XY Monitor:
The large 2N6259 (NPN) transistors for G08-003 monitor rebuilds can be difficult to find in stock, especially for reasonable prices. All of the "known" substitutes that I have listed below have been proven to work.
The most difficult parameter to match (with respect to 2N6259) is the secondary breakdown (Is/b). The more current that the device can carry at the highest voltage possible, the more reliable it will be. The 2N6259 was superior in this way to all of the suggested substitute devices having a rating of 2.5A @ 100V.
The best choice substitute device listed below is MJ21196. I have personally installed the MJ21196 in my own GO8 and it works great.
It is interesting to note that the MJ15003 (NPN) and the MJ15004 (PNP) devices were used in the factory original G08-001, the first version of the monitor, and they were known to fail relatively frequently. Most, if not all, of the substitutes listed below have a superior secondary breakdown value to these.
I have seen in at least one document (the very well presented and useful Mongo’s Simple Sega G80 Vector Mods) the part number mis-typed as 2N6529. Such a device does exist as small low power UHF microwave transistor. Obviously, it is not the device that we are concerned with.
Known subs for 2N6259 (NPN, 150V, 16A, ft = 2 MHz, case TO-3 or TO-204) :
| Part Number | Manufacturer | Description | Secondary Breakdown (Is/b) | Newark #, Price | Digikey #, Price USD |
MJ21196G |
Onsemi | 16A, 250V | 3.0A @ 80V 2.2A @ 100V 1.4A @ 150V |
MJ21196GOS-ND $3.78ea, $3.29/10 | |
| MJ21194 | Onsemi | 16A, 250V | 2.5A @ 80V |
MJ21194GOS-ND $4.40ea, $3.83/10 | |
| MJ15022 | Onsemi | 16A, 200V, ft = 4 MHz | 2.0A @ 80V 1.0A @ 100V |
26K4518 $4.10ea, $3.49/25 | Mouser 863-MJ15022G $4.96ea, $4.08/25 |
| MJ15024 | Onsemi | 16A, 250V, ft = 4 MHz | 2.0A @ 80V 1.0A @ 100V |
MJ15024GOS-ND $4.40ea, $3.83/10 | |
| MJ15003 | Onsemi | 20A, 140V, ft = 2 MHz | 1.5A @ 80V |
MJ15003GOS-ND $3.78ea, $3.29/10 |
Possible subs for 2N6259 (NPN, 150V, 16A, ft = 2 MHz, case TO-3 or TO-204) :
Note: I haven't personally seen an example of the parts below being tried, but I'm very confident that they would work okay. The secondary breakdown values are not quite high as the original 2N6259 part but they have higher values than the MJ150xx parts listed above that are known to work.
| Part Number | Manufacturer | Description | Secondary Breakdown (Is/b) | Newark #, Price | Digikey #, Price USD |
| 2N3773 | STMicro | 16A, 140V | 2.0A @ 70V |
45J2472, $3.62 | 497-6204-ND, $4.16ea, $3.27/10 |
| 2N3773G | On Semi | 16A, 140V | 2.0A @ 70V 1.5A @ 100V |
45J2472, $3.62 | 2N3773GOS-ND, $3.89ea, $3.38/10 |
| 2N4348 | Mospec | 16A, 180V | 2.0A @ 70V 1.5A @ 100V |
||
| NTE284 | NTE | 16A, 180V | ? | NTE284 comes up as sub for 2N4348 on Mouser site but price is stupid and the datasheet shows no Is/b value. |
MPSU10 (NPN) and MPSU60 (PNP) Sega G08-003 Color XY Monitor:
The MPSU10 and MPSU60 transistors were discontinued long ago and are very difficult to source. I have seen them sold online for as much as $12 each. Bob Roberts still sells the MPSU10 for $3 each and that's a great deal.
Simple specs:
Many substitutes have been suggested in the past but most (maybe all) have been pinned BCE, not EBC so you had to be careful to bend the pins around and maybe rotate the part to install it correctly. The parts that I have listed below are pinned correctly as EBC and have virtually identical specifications to the original parts. If you didn't know any better, you'd think that you were reading the original datasheets. I have personally installed these substitutes in my own GO8 monitor and they have been working perfectly and without any issues whatsoever.
Ref |
Section |
Description |
Comments |
Mfr, Part# |
Supplier, Part# |
$ each |
Qty |
$ Total |
Q602, |
Def |
NPN, 300V, 0.5A, TO-92 |
superior part replaces original MPSU10 (NPN) |
OnSemi, |
Digikey, |
$0.26 |
4 |
$1.04 |
Q601, |
Def |
PNP, 300V, 0.5A, TO-92 |
superior part replaces original MPSU60 (PNP) |
OnSemi, |
Digikey, |
$0.26 |
4 |
$1.04 |
Q601, |
Def |
Heatsink for transistors |
press-on with heatsink grease to TO-92 cases |
Aavid Thermalloy, |
Digikey, |
$0.66 at 10 pieces |
8 |
$6.60/10 |
For those wishing to stick to the original TO-202 style cases:
Ref |
Section |
Description |
Comments |
Mfr, Part# |
Supplier, Part# |
$ each |
Qty |
$ Total |
Q602, |
Def |
NPN, 300V, 0.5A, TO-202 |
replaces original MPSU10 |
NTE, |
Mouser, |
$3.06 |
4 |
$12.24 |
Q601, |
Def |
PNP, 300V, 0.5A, TO-202 |
replaces original MPSU60 |
NTE, |
Mouser, |
$4.86 |
4 |
$19.44 |
Hitachi 14-601-36 (Q900) for Sega GO8 Monitor:
Exactly what the heck is the Hitachi 14-601-36 transistor and why is it so hard to find information about it? Obviously it was discontinued long ago but a datasheet should still be available for it online right? So where is it? Well, the first thing that you have to know is that the number (Hitachi 14-601-36) that is printed on the original transistor that shipped with the monitor is not an OEM part number. It's an Electrohome internal reference (or SKU) number that they used in their own BOM (bill of materials) lists that they used on a great many product assemblies. I was able to find an old service manual that showed a partial list of Electrohome reference numbers crossed to the actual OEM (original equipment manufacturers) numbers.
The 14-601-36 reference number indicates OEM part number 2SC1413A. This part was once a very commonly available high voltage transistor used in television and monitor horizontal drive circuits. These days, it's all but impossible to source but that is not important because there are many suitable modern replacements still available. Maybe the increasing dominance of flatscreen LCD televisions will soon change the situation but for now, there are still many components available.
Simple 2SC1413A specs:
The most commonly recommended suitable substitute appears to be the BU208A but there are actually many modern parts that would suffice.
Datasheets of Interest:
2SC1413, 2SC1413A 2SC1413, 2SC1413A 2SC1413A BU208A
Purchasing sources:
Check this out : Search Newark for equivelent parts => Go!
Newark SKU# Price 46T9197 $1.74 10P1521 $8.93 31C3145 $8.78 06M7396 $9.54 96K7210 $3.23
Mouser SKU# Price 526-NTE165 $7ea
Many other crosses exist. This list represents only a small fraction of the older components that were manufactured. I found references to more than 50 different part numbers. It doesn't do much good to list them all since almost all of them were discontinued long ago. Note that the parts listed below were not confirmed beyond existing cross reference tables.
2SD821 2SD1850 BU209 2SC2928 2SD954 2SC1325 BU208A BU208A BU208A BU208A BU208A BU208A BU208A
Sega GO8 Color XY Monitor Rebuild Kit:
Capacitors:
Ref |
Section |
Description |
Mfr, Part# |
Supplier, Part# |
$ each |
Qty |
$ Total |
C401 |
Def |
CAP 1000UF 160V ELECT LS SNAP |
Nichicon, |
Digikey, |
$4.55 |
1 |
$4.55 |
C800, |
Vid input |
CAP 10UF 50V ALUM LYTIC RADIAL |
Panasonic, |
Digikey, |
$0.18 |
6 |
$1.08 |
C411 |
Def |
CAP 22UF 350V ELECT EE RADIAL |
Panasonic, |
Digikey, |
$1.10 |
1 |
$1.10 |
C601, |
Def |
CAP 47UF 35V ALUM LYTIC RADIAL |
Panasonic, |
Digikey, |
$0.22 |
2 |
$0.44 |
C900, |
HV |
CAP 4.7MFD 35V VZ RAD ALUM ELEC |
Panasonic |
Digikey, |
$0.23 |
2 |
$0.46 |
C904, |
HV |
CAP 22UF 35V ALUM LYTIC RADIAL |
Panasonic, |
Digikey, |
$0.18 |
2 |
$0.36 |
C911 |
HV |
CAP 100UF 35V ELECT FC RADIAL |
Panasonic, |
Digikey, |
$0.46 |
1 |
$0.46 |
C916 |
HV |
CAP 47UF 200V ELECT EB RADIAL |
Panasonic, |
Digikey, |
$1.18 |
1 |
$1.18 |
C402 |
Def |
CAP 680UF 400V ELECT TUP |
Panasonic, |
Digikey, |
$12.78 |
1 |
$12.78 |
C403, |
Def |
CAP 6800UF 80V ELECT THA SERIES |
Panasonic, |
Digikey, |
$11.03 |
2 |
$22.06 |
Transistors:
Ref |
Section |
Description |
Comments |
Mfr, Part# |
Supplier, Part# |
$ each |
Qty |
$ Total |
Q600, |
Def |
MPSW42G |
Replaces MPSU07 in this case. Where MPSU07 is rated 100V, 2A, the MPSW42G is rated 300V, 0.5A. This is not a problem in this case. |
OnSemi, |
Digikey, |
$0.64 |
2 |
$1.28 |
Q605, |
Heatsink |
TRANS PWR NPN 20A 140V TO-3 |
Original part |
ON Semiconductor, |
Digikey, |
$4.78 |
4 |
$19.12 |
Q605, |
Heatsink |
TRANS PWR NPN 16A 250V TO-3 |
Much better than MJ15003G |
ON Semiconductor, |
Digikey, |
$4.78 |
4 |
$19.12 |
Q605, |
Heatsink |
Mica insulator for TO-3 transistor |
|
Keystone, |
Digikey, |
$1.57/10 |
1 |
$1.57 |
Q605, |
Heatsink |
Socket for TO-3 transistor |
|
Keystone, |
Digikey, |
$3.01 |
4 |
$12.04 |
Q901, |
HV, |
MPSA56 |
superior part to replace original 2N3906 |
Fairchild: |
Digikey, |
$0.29 |
3 |
$0.87 |
Q903, |
HV, |
MPSA06 |
superior part to replace original 2N3904 |
Fairchild, |
Digikey, |
$0.34 |
3 |
$1.02 |
Q602, |
Def |
MPSW42G |
superior part replaces original MPSU10 |
OnSemi, |
Digikey, |
$0.64 |
4 |
$2.56 |
Q601, |
Def |
MPSW92G |
superior part replaces original MPSU60 |
OnSemi, |
Digikey, |
$0.64 |
4 |
$2.56 |
Q601, |
Def |
Heatsink for transistors |
press-on with heatsink grease to TO-92 cases |
Aavid Thermalloy, |
Digikey, |
$0.384 at 10 pieces |
8 |
$3.84/10 |
Ceramic resistors R635, R735:
The total value of R635 is 3 ohms / 20 Watts. The total resistance value of R735 is also 3 ohms / 20 Watts.
The original factory configuration for each resistor R635 and R735 was a pair of 1.5 ohm / 10W resistors connected in series to produce the desired total value. Each pair of power resistors was mounted vertically on the deflection board in a Tee-pee configuration. The assembly was very fragile and sensitive to vibration. It is very common to see the resistor leads fractured from metal fatique.
It is recommended to replace each of the tee-pee pairs of resistors with a single new resistor of the overall resistance value and power rating.
The ideal resistors to use in the GO8 monitor are a non-inductive (N.I.) type.
In some cases, the best way to mount the aluminum housed resistors would be to make a flat sheet aluminum plate with the R635 and R735 resistors screwed to each side of it respectively. Wire each set of resistors together (if more than 1 is required to make 3 ohms) to form a single 3 ohm resistor. Use thermal grease between the resistors and the plate. Bend 1/2" of the plate 90° at the bottom end to serve as a mounting foot so it can stand vertically. You can drill a couple of mounting holes through the mounting foot and use machine screws with lock washers and nuts to secure it to the PCB. Be sure that the screws do not contact any copper on the bottom of the PCB and that the metal mounting plate doesn't touch the PCB terminals for the resistor connections.
Ref |
Section |
Description |
Mfr, Part# |
Supplier, Part# |
$ each |
Qty |
$ Total |
| R635, R735 |
Def | 3 ohm 20W ceramic (this part is N.I.). |
Vishay, NH0503R000FE02 |
Mouser, 71-NH0503R000FE02 | $10.18 | 2 | $20.36 |
R635 / R735 Alternate choice #1:
In this case, each 3 ohm resistor is composed of three 10 ohm / 10W resistors connected in parallel.
Ref |
Section |
Description |
Mfr, Part# |
Supplier, Part# |
$ each |
Qty |
$ Total |
| R635, R735 |
Def | 3x 10 ohm 10W ceramic (this part is N.I.). |
Vishay, NH01010R00FC02 |
Mouser, 71-NH10101% | $5.59 | 6 | $33.54 |
R635 / R735 Alternate choice #2:
In this case, each 3 ohm resistor is composed of two 1.5 ohm / 12W resistors connected in series. That's right, another tee-pee. Maybe you can think of a better way of mounting them than Electrohome did.
Ref |
Section |
Description |
Mfr, Part# |
Supplier, Part# |
$ each |
Qty |
$ Total |
| R635, R735 |
Def | 2x 1.5 ohm 10W ceramic |
Huntington Elect., MRA12-1.5-1% |
Digikey, MRA12-1.5-ND | $5.40 | 4 | $21.60 |
R635 / R735 Alternate choice #3:
Note about the Ohmite B20J3R0E resistor : The B20J series does not qualify as N.I. unless the part number begins with B20NJ (includes the 'N'). Then it is the N.I. type. I discovered my mistake some time after installing the B20J type resistor. My monitor is stable and shows no ill effects. However, I had originally installed an extra ground wire (as is often recommended by other collectors with technical backgrounds) and my monitor showed a lot of jitter/wiggle/flutter/shake etc. Removing the extra ground lead fixed the problem, maybe by removing a ground loop issue, but who knows, maybe the non-NI resistors were a contributor factor.
Ref |
Section |
Description |
Mfr, Part# |
Supplier, Part# |
$ each |
Qty |
$ Total |
| R635, R735 |
Def | 3 ohm 20W ceramic (this part is not N.I.). |
OHMITE, B20J3R0E |
Digikey, B20J3R0E-ND |
$5.04 | 2 | $10.08 |
| or Newark, 64K3778 | $4.13 | 2 | $8.26 | ||||
| or Mouser, 588-B20J3R0E | $4.64 | 2 | $9.28 | ||||
| or Allied Elec, 296-6349 | $4.78 | 2 | $9.56 | ||||
|
|
|
|
or Galco, B20J3R0E |
$3.68 |
2 |
$7.36 |
Headers:
Ref |
Section |
Description |
Mfr, Part# |
Supplier, Part# |
$ each |
Qty |
$ Total |
P800 |
Vid input |
PCB rectangular header, vertical, 6p, 0.156" pitch, square post, friction lock, (for video signal input) |
Tyco, |
$0.37 |
2 |
$0.74 |
|
J800 |
Vid input |
rectangular housing with ramp, natural |
Molex, |
$0.56, |
2 |
$1.12, |
Paddle boards (current limiting):
Ref |
Section |
Description |
Comments |
Mfr, Part# |
Supplier, Part# |
$ each |
Qty |
$ Total |
R202, |
Paddle H |
resistor, 0.15 ohm, 1%, 3W, metal |
Replaces original 2W, 5% |
Ohmite, |
Digikey, |
$2.10 |
2 |
$4.20 |
R252, |
Paddle V |
resistor, 0.16 ohm, 1%, 5W, wire-wound (NI) |
Note: Okay use 0.15 ohm part above.
|
Ohmite, |
Mouser, |
$2.07 |
2 |
$4.14 |
P250, |
Paddle V |
PCB female header socket, 7p, 0.156" pitch, right angle |
|
Molex, |
Digikey, |
$1.61 |
2 |
$3.22 |
P251, |
Paddle V |
PCB male header, 7p, 0.156" pitch, right angle |
Note: alternate with lock: |
Tyco, |
$0.39 |
2 |
$0.78 |
|
P600, |
Def |
PCB male header, 7p, 0.156" pitch, vertical |
|
Tyco, |
$0.39 |
2 |
$0.78 |
|
J600, |
Paddle V |
rectangular housing, 7p, w/ramp, natural |
Alternate (white): |
Molex, |
Digikey, |
$0.66 |
2 |
$1.32 |
Q251, |
Paddle V |
MPSA56 |
superior part to replace original 2N3906 |
Fairchild: |
Digikey, |
$0.29 |
2 |
$0.58 |
Q252, |
Paddle V |
MPSA06 |
superior part to replace original 2N3904 |
Fairchild, |
Digikey, |
$0.34 |
2 |
$0.68 |
Fuses:
Note: In my opinion, the original fuses were grossly overrated. Overrating a fuse serves no practical purpose. If a component fails, that's it. A tougher fuse is not going to fix that problem. It's only going to allow more components to fry.
Ref |
Section |
Description |
Comments |
Mfr, Part# |
Supplier, Part# |
$ each |
Qty |
$ Total |
F400, |
Def |
4A, 250V, T-lag, 1.25"x0.25" glass |
Replaces original 5A, 125V |
Cooper/Bussman, |
Digikey, |
$1.18 |
2 |
$2.36 |
F600, |
Def |
2A, 250V, T-lag, 1.25"x0.25" glass |
Replaces original 4A, 125V |
Cooper/Bussman, |
Digikey, |
$1.18 |
2 |
$2.36 |
Ref |
Section |
Description |
Comments |
Mfr, Part# |
Supplier, Part# |
$ each |
Qty |
$ Total |
F1, |
Board |
3A, 250V, Normal, 1.25"x0.25" glass |
|
Cooper/Bussman, |
Digikey, |
$0.51 |
2 |
$1.02 |
| F3 | Board | 8A, 250V, T-lag, 1.25"x0.25" glass | Replaces original 10A, 125V | Cooper/Bussman, BK/MDL-8-R |
Digikey, 283-2755-ND |
$1.11 | 1 | $1.11 |
| F4 | Board | 2A, 250V, Normal, | Replaces original 1.5A, 125V | Cooper/Bussman, BK/AGC--R |
Digikey, 283-2626-ND |
$0.51 | 1 | $0.51 |
| C5, C8, C10, C18, C19, C23, C24, C26, C31 | Board | CAP 10UF 50V MINI ALUM ELECT size: 0.197" Dia x 0.433" H (5.00mm x 11.00mm) lead spacing: 0.079" (2.00mm) |
Panasonic, ECA-1HHG100 EEU-EB1H100S United Chemi-Con EKY-500ELL100ME11D |
Digikey, P5567-ND P13478-ND 565-1598-ND |
$0.24 $0.32 $0.19 @10 |
9 | $2.16 | |
| C17 | Board | CAP 100UF 50V ELECT FC RADIAL size: 0.394" Dia x 0.492" H (10.00mm x 12.50mm) lead spacing: 0.197" (5.00mm) |
Panasonic, EEU-FC1H101 |
Digikey, P10323-ND |
$0.50 | 1 | $0.50 | |
| C30 | Board | CAP 3300UF 25V ELECT KY RAD size: 0.630" Dia x 1.240" H (16.00mm x 31.50mm) lead spacing: 0.295" (7.50mm) |
Panasonic, EKY-250ELL332MLN3S |
Digikey, 565-1564-ND |
$1.48 | 1 | $1.48 | |
| C32, C33, C34 | Board | CAP 6800UF 35V ELECT VZ RADIAL size: 0.787" Dia x 1.575" H (20.00mm x 40.00mm) lead spacing: 0.394" (10.00mm) |
Nichicon, UVZ1V682MRD |
Digikey, 493-1326-ND |
$3.17 | 3 | $9.51 | |
| C15, C16, C27, C28 | Board | CAP 4700UF 35V ELECT VR RADIAL size: 0.787" Dia x 1.221" H (20.00mm x 31.00mm) lead spacing: 0.394" (10.00mm) |
Nichicon, UVR1V472MRD6 (H: 31mm, 85°) or United-Chemi-Con, ESMG350ELL472MP30S (H: 30mm, 85°C) or Nichicon, UVR1H472MRD (H:40mm, 85°C), or UVZ1H472MRD (H:40mm,105°C) |
Digikey, 493-1089-ND or 565-1093-ND or 493-1115-ND or 493-1348-ND |
$2.10 $3.41 $3.00 $3.41 |
4 | $8.80 | |
| U1 | Board | IC SOCKET STRAIGHT 14POS GOLD | AssMann Elect. , A14-LCG-T-R |
Digikey, AE9990-ND |
$1.20 | 1 | $1.20 | |
| U1 | Board | IC VOLT REGULATOR HI PREC, 14-DIP case | STMicro. , LM723CN |
Digikey, 497-1596-5-ND |
$0.92 | 1 | $0.92 | |
| D10, D12 | Board | Diode GPP, 6A, 600V, DO-201AD case | Replaces original MR751, 6A, 100V | Micro Comm. , 60S6-TP |
Digikey, 60S6-TPMSCT-ND |
$1.02 | 2 | $2.04 |
| D6, D7, D8, D9, D11, D13, D14, D15, D16, D17 | Board | Diode ULTR FAST, 4A, 600V, DO-201AD case or Diode GEN PURP, 3A, 200V, DO-201AD case |
Replaces original MR501, 3A, 100V | Micro Comm. , |
Digikey, MUR460GOS-ND or 1N5402FSCT-ND |
$0.554 or $0.298 |
10 | $5.54 or $2.98 |
| D1, D4, D5 | Board | Diode, 100V, 4.0ns, DO-35 case | Fairchild, 1N4148 |
Digikey, 1N4148FS-ND |
$0.05 | 3 | $0.15 | |
| Q1, Q7 | Board | Transistor, PNP, SS GP 600MA TO-92 case | Fairchild, 2N4403 |
Digikey, 2N4403-ND |
$0.15 | 2 | $0.30 | |
| Q2, Q3 | Board | Transistor, NPN, SS GP 600mA, TO-92 case | Fairchild, 2N4401 |
Digikey, 2N4401-ND |
$0.14 | 2 | $0.28 | |
| 313-0023 at P2 | HS | IC VREG, 1A, -5V, 4%, 3TERM, TO-220 case |
Replaces original 320T5 | Fairchild, LM7905CT |
Digikey, LM7905CTFS-ND |
$0.56 | 1 | $0.56 |
| 313-0014 at P3 | HS | IC VREG, 1A, +12V, 3TERM, TO-220 case |
Replaces original 340T12 | Fairchild, LM7812CT |
Digikey, LM7812CTFS-ND |
$0.51 | 1 | $0.51 |
| 313-0015 at P4 | HS | IC VREG, 1A, -12V, 3TERM, TO-220 case |
Replaces original 320T12 | Fairchild, LM7912CT |
Digikey, LM7912CTFS-ND |
$0.56 | 1 | $0.56 |
| 482-0104 at P1 | HS | Transistor, NPN, Darl, 10A, 100V, hfe=1000, TO-218 case | TIP142 (100V) replaces original TIP141 (80V) |
OnSemi, |
Digikey, |
$2.24 $2.02 $1.36 |
1 | $2.24 |
| 482-0100 at P6 | HS | Transistor, PNP, Darl, -5A, 60V, TO-220 case | Fairchild, TIP125 |
Digikey, TIP125TU-ND |
$0.66 | 1 | $0.66 | |
| 482-0019 at P5 | HS | Transistor, NPN, Darl, 5A, 60V, TO220AB case | OnSemi, TIP120 |
Digikey, TIP120GOS-ND |
$0.71 | 1 | $0.71 | |
| HS at P1 | silicon rubber insulator for TO-218 case | no heatsink grease needed | Bergquist, SP600-104 SP900S-0.009-00-104 |
Digikey, BER109-ND BER178-ND |
$0.25 $0.32 |
1 | $0.50 | |
| HS at P2, P3, P4, P5, P6 | mica insulator for TO-220 case | heatsink grease needed | Keystone, 4672 |
Digikey, 4672K-ND |
$0.135 | 5 | $0.68 | |
| HS at P1, P2, P3, P4, P5, P6 | Nylon #4 screw insulator Height: 0.047" (1.2mm) Flange, 0.063" (1.6mm) Body ID: 0.115" (2.9mm) OD: 0.235" (6.0mm) Flange, 0.145" (3.7mm) Tube |
1 needed on each screw for each part on HS. | Richco Plastic, TO-218-70 |
Digikey, RP339-ND |
$0.23 | 6 (25min) | $5.89 | |
| HS at P1, P2, P3, P4, P5, P6 | 4-40 X 1/2"L machine screw | 1 needed on each part on HS if using retaining nuts and thru holes. | B&F, PMS 440 0050 PH |
Digikey, H346-ND |
$0.0263 | 6 (100min) |
$2.63 | |
| HS at P1, P2, P3, P4, P5, P6 | 4-40 X 1/4"L machine screw | 1 needed on each part on HS if using 4-40 tapped holes. | B&F, PMS 440 0025 PH |
Digikey, H342-ND |
$0.0358 | 6 (100min) | $3.58 | |
| HS at P1, P2, P3, P4, P5, P6 | 4-40 x 0.187" hex nut, steel | 1 needed on each part on HS if using 4-40x1/2" screws and thru holes. | Tyco, 5205821-2 |
Digikey, A35230-ND |
$0.08 | 6 (10min) | $0.80 |
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Last update: Jan. 14, 2016
Power Supply Pics: Before Rebuild
Power Supply Pics: After Rebuild
Power Transformer: Connections
Electronics: Rebuild Kits Parts Lists
Free Play Modification: Description and Installation
Star Trek: Front Page
Picture Library: Assorted
GO8-003 Monitor Pics:Before Rebuild
GO8-003 Monitor Pics: After Rebuild
