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Author Topic: thandar tf200 counter  (Read 475 times)

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Offline METopic starter

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thandar tf200 counter
« on: February 16, 2025, 10:15:41 am »
My thandar tf200 appears to use a 4Mhz timebase xtal, Can anyone tell me why its not 10Mhz like most?, Also i have a  OSC5A2BO from cti, could that be fitted?, thanks.
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Offline 807

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Re: thandar tf200 counter
« Reply #1 on: February 16, 2025, 12:02:21 pm »
The 4MHz xtal is divided down by 4 internally, so the reference is actually 1MHz. There may not be enough room inside the case for an OCXO. Perhaps divide the OSC5A2BO by 10 & connect to the external reference connector.
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Offline Terry Bites

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Re: thandar tf200 counter
« Reply #2 on: February 16, 2025, 12:29:47 pm »
Because it was so very cheap.
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