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Minitor 1 - Crystal Chart?

rescue161

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I seem to remember there being a chart that covered which crystal to use for the required frequency. Does anybody have one of these or am I off my rocker?
 

TESTMODE

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I was actually going through things at the office today and came across just this thing. If no one else posts it before Tuesday, I'll scan it.
 
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rescue161

rescue161

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Alright! Thank you. I tried to buy one and the company said they didn't know what I was talking about. Or if you know the calculation, that would be awesome.

I have a used pager that is marked with a label inside the case as 154.175. The crystal is marked 17080.00. I just need to change it to 155.880 and if I can find a crystal on the correct freq, I can change it, without having to buy Minitor/Director specific crystals.
 
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rescue161

rescue161

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Thank you!
I was trying multiples of 10 and it wasn't working out.

Thank you again!
 
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rescue161

rescue161

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I looked around and found that Bomar is making crystals again. What type of crystal do I need to tell them to make? Is there a specific pF or PPM rating or do they know what I need if I just tell them 17.26944 MHz HC49 thru-hole crystal?
 

Notarola

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Bomar should have the cap and other specs for the xtal. Just be sure to let them know what product the xtal is for.
 
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rescue161

rescue161

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Thanks. I saw that while they are making them again, they are very expensive for one-offs. Someone else recommended http://quartslab.com/ in the UK. I sent them an email and waiting to hear back.
 

TESTMODE

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If you ship Bomar your housing to get re-rocked, it is quite a bit more affordable, or used to be anyway.