Electronics

6th June
2015
written by Todd Harrison

See below video and links to vendors, parts I ordered, parts I want to order and board repair services. Also below is a high resolution photo gallery of my pinball machine and the play field disassemble.

<Video part 1 of 2>

<Video part 2 of 2>

Data on my Bally Star Trek:
http://www.ipdb.org/machine.cgi?gid=2355

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Everything you could ever want to know about restoring pinball machines:
http://www.pinrepair.com/restore

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Major parts suppliers:
http://www.pbresource.com/
http://www.marcospecialties.com/
http://www.bayareaamusements.com/
http://www.pinballlife.com/
http://www.classicplayfields.com/
Board repair service:
https://ksarcade.net/board-repair.html

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Playfield restoration steps I think I will follow
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0. Strip playfield of stuff.
1. Blow off playfield with compressed air and Vacuum
2. Clean with Super Clean or Mean Green enough to remove surface dirt
3. Wipe down with Naptha (lighter fluid)
4. Clean deep cracks with Mr. Clean Magic Eraser and with Iso Alcohol
5. Wipe down again with Naptha
6. Touch up with water based acrylic paint
7. Wipe down with Naptha
8. If not using full coverage Mylar shield then your best option is to apply automotive urethane clear coat but if you can’t then use 5 coats of water-based Minwax polyurethane
(Jeri says to use water based spray on Varathane in a can but once used you can’t apply alcohol, naptha or it will cloud the Varathane).
(Jeri says you can always clean off the Varathane with lots of naptha (lighter fluid) or goo gone.)
(I think I can also clear coat it with Krylon Triple-Thick 12 oz. spray can, I’m not sure of my best option yet.)
Clean off PF with compressed air
Spray a misting coating
Lightly sand with 600 grit
Wipe down with Naptha
Repeat four more times
9. Orbital sand with 800, 1000, 1200, 1500 grit sandpaper
10. Finish last polish with Novus 2
11. Wax twice with Wild Cat #125 or Johnson Paste Wax or (Best option for my pin Blitz Carnauba Paste Wax) – from:
http://www.pinballlife.com/index.php?p=product&id=2589
12. Buff with buffing pad to a high gloss finish
13. If you used automotive clear code instead of water-based Minwax polyurethane or Varathane then you don’t need Mylar protectors.
otherwise put down your Mylar for bumpers and sling shots.
14. replace all playfield stuff.
(done)
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Parts
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Bally Star Trek parts:
http://bayareaamusements.com/Merchant2/merchant.mvc?Screen=CTGY&Category_Code=GS-2355
https://ksarcade.net/catalogsearch/advanced/result/?used_by_game=1739

(more…)

Comments Off on Bally Star Trek Pinball Cleanup (part 1 & 2)
3rd March
2015
written by Todd Harrison
In this video I put up a 20 meter band Delta Sky Loop Antenna with lighting arrestor to use with my HackRF One software defined radio.
I then demonstrate good reception from all over the USA as far away as 1500 miles using SDR Console software version 2 by SDR-Radio
I was able to use CW, AM, FM (narrow & wide) modes on HF and VHF without problems. The software is a bit difficult but I cover some tips in the video that worked for me.
My sky loop antenna was ~128feet long tuned for 1.2:1 SWR at 14.07 MHz
Hoping to use the HackRF for PSK and JT9 at 30 mW TX
<video>

Amazon store links:
100 ft RG8X COAX CABLE for CB / Ham Radio w/ PL259 Connectors
LIGHTNING ARRESTOR for CB or Ham Base Antennas
MIG Welding Wire, 4043, .030, Spool
Talented Balun by James Sanders (AG6IF)
Search for AG6IF on http://www.qrz.com
SDRConsole (V2)
Comments Off on HackRF on Sky Loop Antenna and Talented Balun
9th January
2015
written by Todd Harrison

This is the complete tear down and restoration of a 1976 pong clone game console called “Name Of The Game I” model A-100 by Allied Leisure Industries Inc. In the video you will see I expose a little old school video voodoo, at least that is what I’m going to call it because I have no idea how it works. I’m sure some people know why tuners are build like this so please feel free to educate me a little on the subject.

I found this pong clone so I could restore it and give it to my sister for Christmas because we used to have this very game as kids. If you’re interested you should watch part 1 which covers the product review and video of my Sister receiving the game she never thought she would ever see again. Below the video are lots of photos.

(more…)

Comments Off on Name Of The Game Part 2 of 2 – Tear Down and Video Voodoo Repair
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