Did you also check and replace the transistor that drives that coil? That might be the reason the previous coil went the way it did.
(Topic ID: 250040)
Linked Games
Star Gazer
Stern Electronics, 1980
Topic Gallery
Χαλκίδα
Nice work bringing the game back to life.
Note: the original knocker coil is a 26-1200 (26 gauge wire with 1200 wire revolutions). Your replacement is a 23-800 coil which has much lower impedance. There is a risk of that driver transistor failing again from over current because of the low impedance replacement coil.
Quoted from Quench:Nice work bringing the game back to life.
Note: the original knocker coil is a 26-1200 (26 gauge wire with 1200 wire revolutions). Your replacement is a 23-800 coil which has much lower impedance. There is a risk of that driver transistor failing again from over current because of the low impedance replacement coil.
Thanks for the info. I did not know that the original coil is a 26-1200 to be honest.
Do you reallly think that this might cause to the transistor?
The reason I am asking is because parts in Greece are hard to find and especially now with the Corona virus its even harder unfortunately.
Quoted from Axaios:Do you reallly think that this might cause to the transistor?
To be honest, yes.
Do you have any low ohm, high watt resistors you can put in series with the knocker coil for now?
BTW, you can find the coil part numbers in the Star Gazer manual:
Quoted from Quench:To be honest, yes.
Do you have any low ohm, high watt resistors you can put in series with the knocker coil for now?
BTW, you can find the coil part numbers in the Star Gazer manual:
[quoted image]
Thanks for the information mate. Really helpful.
Point Pleasant, NJ
It looks like a few of the transistors on the SDU are unused too. I'm pretty sure you can remove one of them and install it in place of the blown transistor if needed. For instance, the schematic shows Q11 and Q14 both lead to 'open', meaning they are not being used. There's a few others too, looking at the SDU schematic.
619836019.pngQuoted from frunch:It looks like a few of the transistors on the SDU are unused too. I'm pretty sure you can remove one of them and install it in place of the blown transistor if needed. For instance, the schematic shows Q11 and Q14 both lead to 'open', meaning they are not being used. There's a few others too, looking at the SDU schematic.[quoted image]
Actually this is a really good idea. Unfortunately I don't have the skills (yet I hope) to do it.
I think the most safe thing to do for now is to find the correct coil.
Since I know a guy who built a StarGazer from scratch, definitely yes. Worth it.
--
Chris Hibler - CARGPB #31
http://www.ChrisHiblerPinball.com/Contact
http://www.PinWiki.com - The Place to go for Pinball Repair Info
Quoted from ChrisHibler:Since I know a guy who built a StarGazer from scratch, definitely yes. Worth it.
--
Chris Hibler - CARGPB #31
http://www.ChrisHiblerPinball.com/Contact
http://www.PinWiki.com - The Place to go for Pinball Repair Info
Totally aggre. I have seen people giving life to pins that were totally destroyed more than once. Plus that in this particular case this Star Gazer it's the only one in the entire country. So right from the start for me to repair it was the only logical decision regardless the time that will take to do so.
Thanks for the links mate. Really helpful.
2 weeks later
Quoted from Axaios:Side bars were severely damaged. Hited, scratched, bended etc.[quoted image][quoted image][quoted image][quoted image]
You could have probably sanded that then buffed out most of that damage with a buffing wheel and some heavy rouge.
Quoted from PinMonk:You could have probably sanded that then buffed out most of that damage with a buffing wheel and some heavy rouge.
Totally agree. I did sand them a lot but the damage was beyond that unfortunately. They had very deep scratches and markings. In the before pictures you can't really tell. Plus that I miss the proper heavy equipment.
I had to straight them out first by hammering.
The only way to hid this was to coat them some how.
3 weeks later
This is looking great. I'm excited to see how it turns out in the end. Have you figured out anything more about the different play field art you seem to have?
Quoted from ArcadeRaid:This is looking great. I'm excited to see how it turns out in the end. Have you figured out anything more about the different play field art you seem to have?
Playfield it's an issue here to be honest. I still don't know what I am going to do with it. Replace it will cost me a fortune. It's not only the purchase of it but also this ridiculous high custom house tax we got here. At the end it will cost double the money for a new playfield. From the other hand it will be nice to keep the re-done playfield. It's a form of art, so why not. But still this will also need to be nicely repaired.
3 weeks later
It certainly has its flaws however I am very proud for what it is now compared to what it was before.
20200606_113629 (resized).jpg20200606_125424 (resized).jpg20200606_132630 (resized).jpg20200606_191434 (resized).jpg20200606_202307 (resized).jpg20200606_205209 (resized).jpg20200606_205200 (resized).jpgQuoted from Axaios:It certainly has its flaws however I am very proud for what it is now compared to what it was before.
[quoted image][quoted image][quoted image][quoted image][quoted image][quoted image][quoted image]
It's looking good, especially compared to the trash heap you started with.
2 weeks later
1 week later
In a previous post I showed how I painted the side bars. Well this didn't worked out. I didn't like it. So I removed the paint and I sand them to death with many different sand paper sizes. Then I polished them and I think that the result is really nice.
It took me several hours but it was worth it.
My advice, never paint the side bars.
Quoted from Axaios:In a previous post I showed how I painted the side bars. Well this didn't worked out. I didn't like it. So I removed the paint and I sand them to death with many different sand paper sizes. Then I polished them and I think that the result is really nice.
It took me several hours but it was worth it.
My advice, never paint the side bars.
[quoted image][quoted image]
That looks much better.
1 week later
Quoted from Axaios:All boards and display are placed. Payed attention to the notification labels.
Do you guys like the battery mod.
[quoted image][quoted image][quoted image]
Nice seeing this trash heap restored! Keep it up...
2 months later
4 months later
1 month later
Quoted from mof:Any updates?
Hello,
I am on the stage of repairing the playfield at the moment.
I am missing however some materials and tools in order to make it right and we are under lockdown here. All stores are closed. So I am waiting.
Repaired an Amazing Spider-man and currently repairing a High speed in the meantime. High speed is also stuck due to a huge delay of parts ordered almost 3 months ago.
1 month later
It's coming along nicely!
8 months later
1 year later
Hello everyone,
Back after a year from my last post on this.
So after many failed attempts to create an overlay which was the original plan I was able to find the right people to help me out.
Pinball Magic gave me the solution by restoring 100% original playfield. Honestly, what an amazing work those guys did for me! Many thanks to daw6205
The only thing left to do is to reassemble the playfield and finally this dream project will be finally completed.
IMG-20230825-WA0005 (resized).jpgIMG-20230825-WA0006 (resized).jpgIMG-20230825-WA0007 (resized).jpg
Promoted items from Pinside Marketplace and Pinside Shops!
Reply
Wanna join the discussion? Please sign in to reply to this topic.
Hey there! Welcome to Pinside!
Donate to PinsideGreat to see you're enjoying Pinside! Did you know Pinside is able to run without any 3rd-party banners or ads, thanks to the support from our visitors? Please consider a donation to Pinside and get anext to your username to show for it! Or better yet, subscribe to Pinside+!
