Posts: 2,761
Threads: 100
Joined: Jul 2005
Quote:
I might be some years behind the times, and the last on the planet to perform this mod,
You can bet you are not the last one! I have a good-looking HP-45. I like neither the initial FIX 2 display mode nor the automatic changing to SCI mode but I like the timer feature and might try the mod myself. I hope the crystal can be found in any electronic warehouse. Crystals can be found in cheap digital clocks or clock-calculators made in China (I don't know what their typical frequencies are). I was not intending to open mine, but since one of the decimal points don't light up I might check it out.
Regards,
Gerson.
Posts: 172
Threads: 13
Joined: Jul 2005
I would go to a vendor like International Crystal Manufacturing Company (http://www.icmfg.com). I've used them when I needed crystals for amateur radio equipment. The problem is providing all of the specifications needed for them to make your crystal. Besides frequency, they need to know the cut, package, fundamental or overtone, accuracy, and probably other things that I don't remember.