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Source for 784 MHz crystals?

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John Crane

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2021年5月19日 晚上10:12:322021/5/19
收件者:
Does anyone know of a source for 784 MHz crystals?
I'd like to try to 'accurize' the timer in the HP-45 calculator.

-John

Lucifer

未讀,
2021年5月20日 清晨7:11:442021/5/20
收件者:
I doubt any go that high.

>-John

John Crane

未讀,
2021年5月20日 上午11:42:132021/5/20
收件者:
Make that kHz.

John Crane

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2021年5月20日 上午11:42:352021/5/20
收件者:
On 5/19/21 9:12 PM, John Crane wrote:
Make that kHz.

Kendrick Kerwin Chua

未讀,
2021年5月20日 下午5:59:322021/5/20
收件者:
In article <1680d0b7e9b61e85$2$1693209$e8dd...@news.thundernews.com>,
John Crane <john_c...@yahoo.com> wrote:
>On 5/19/21 9:12 PM, John Crane wrote:
>> Does anyone know of a source for 784 MHz crystals?
>> I'd like to try to 'accurize' the timer in the HP-45 calculator.
>>
>Make that kHz.

You probably found this link already:

https://davidreaton.com/hp-calculators/hp-45/

I got to that link from the opposite direction, in that I used to modify
video game systems and we'd use custom oscillators in place of crystals in
order to mess with the region or the video output timing. So the timing
circuit that Mr. Reaton uses in place of a 784 kHz crystal works on the
same valid principle.

-KKC, wandering around the abandoned world of Usenet like the Omega Man.
--
-- "People with happy families don't become spies. A bad | kendrick
childhood is the perfect background for covert ops. You | @
don't trust anyone. You're used to getting smacked around, | io-nyc
and you never get homesick." - Michael Westen, /Burn Notice/ | .com
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