(Topic ID: 211448)

A Pecos Diary - My Journey to Pinball Operator

By Pecos

2 years ago

Topic Stats

  • 419 posts
  • 86 Pinsiders participating
  • Latest reply 3 months ago by Dono
  • Topic is favorited by 105 Pinsiders


Linked Games

Topic poll

“Is this thread still worthwhile?”

  • This thread is past it's prime and is now boring me to tears! It no longer provides useful information. It's time to call it a day and close this thread down! 0 votes
  • While it may not be exciting or fun as other threads on Pinside, I still read this thread and am glad it is still being updated. There is still good information here and I pick up some helpful tips along the way. Keep it going! 40 votes
  • Beats Me! (Insert Scooby Doo "HUH?" sound here) 2 votes

(42 votes)

Topic Gallery

There have been 301 images uploaded to this topic. (View topic image gallery).

DSCF0083 (resized).JPG
DSCF0079 (resized).JPG
DSCF0077 (resized).JPG
DSCF0027 (resized).JPG
DSCF0026 (resized).JPG
PSE Warning Label (resized).png
Three of the Fantastic Four at Hotrods Old Vail (resized).png
Flash #1 of Fantastic Four (resized).png
DSCF4613 (resized).JPG
DSCF4612 (resized).JPG
DSCF4610 (resized).JPG
DSCF4568 (resized).JPG
DSCF4580 (resized).JPG
DSCF4568 (resized).JPG
DSCF4556 (resized).JPG
DSCF4551 (resized).JPG

You're currently viewing posts by Pinsider Dah-le.
Click here to go back to viewing the entire thread.

#49 2 years ago

I've got no idea what was in the service bulletin about the bridged capacitors... But mixing the ceramic with the electrolytic does change things. Total capacitance goes up (c Total = c1 + c2) Frequency response changes slightly since the devices have different characteristics (ESR - equivalent series resistance differs) Also they behave differently for reverse voltage.
I wouldn't be surprised if the original design either should have had a higher capacitor value or required two different types for frequency response characteristics.
Bridging them was definitely a low cost modification that didn't add to much to the manufacturing process.
It's been a long time since I've thought about hardware design at that level! Kind of fun to see this since I doubt modern hardware sees many changes like this.

Good luck with the journey!

Promoted items from the Pinside Marketplace
$ 50.00
$ 149.00

You're currently viewing posts by Pinsider Dah-le.
Click here to go back to viewing the entire thread.

Hey there! Got a moment?

Great to see you're enjoying Pinside! Did you know Pinside is able to run thanks to donations from our visitors? Please donate to Pinside, support the site and get anext to your username to show for it! Donate to Pinside