2500 Series Desk Phone
dircom:
Bad dial, got many service calls for that problem, back in the Ma Bell days, and Steve is correct, they finally made a better dial (but that might have been after Ma Bell's divorce).
Lavarock7:
You should be able to find a replacement pad.
In my earlier days, if I wanted to fix this one, I would gut it and add a touch tone encoder chip or a bunch of Signetics 555 timer chips. http://www.boondog.com/tutorials/dtmf/dtmf.htm
(Before mobile phones were cheap, we used to make telephone calls with our Ham radios and touch tone pads listed from old phones).
I took a quick look and could not finds my individual replacement pad.
I once took an old rotary dial phone and converted it to a lamp. The lamp post came out behind the receiver. You lifted the receiver (the AC went through the switch contacts). Then there was a dimmer connected to the dial :-)
Strangely, I also found an AOL install kit inside a wooden box. I think it was handed out under a special promotion on American Airlines.
SteveInWA:
I think we've flogged this issue to death.
Here's a YouTube video showing the difference between the old and new 2500 keypads. The video is insufferably long and boring, and it doesn't show how to repair the old keypad, so don't bother watching it to the end. The author correctly points out that the "fix" is to replace it, not try to repair it. Perhaps, if you contact them, they can either sell you an electronic keypad, or suggest a source.
https://www.youtube.com/watch?v=RWbONnfYyzU
oesjmr:
Thanks for the replies everyone! Sorry for the late reply...it's amazing how much work piles up when you take a week's vacation!
I found a replacement keypad here, http://www.oldphoneworks.com/2500-2554-touch-pad-brand-new.html. They also sell a polarity guard, so I'll probably buy both to see if I can get things working.
Thanks again everyone! I'll post back if I'm able to get this old phone working again.
SteveInWA:
Quote from: oesjmr on June 29, 2017, 08:11:33 pm
Thanks for the replies everyone! Sorry for the late reply...it's amazing how much work piles up when you take a week's vacation!
I found a replacement keypad here, http://www.oldphoneworks.com/2500-2554-touch-pad-brand-new.html. They also sell a polarity guard, so I'll probably buy both to see if I can get things working.
Thanks again everyone! I'll post back if I'm able to get this old phone working again.
Perfect. I've bought from them before, and they have great service. I suggest taking a photo of the wring before you disconnect things, just in case you lose track of what goes where. If the new keypad has different wiring terminals than the old one, the guy at Old Phone Works can probably help you figure it out.
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