Syntor X9K mode conversion

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etexemt
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Joined: Mon Aug 25, 2003 7:49 am

Syntor X9K mode conversion

Post by etexemt »

Where can I get the 8kx8 EEPROM chips to upgrade a X9K to 64 modes? I have searched them on a search engine, but there are so many different kinds I'm not sure which one I need...
Any info would be appreciated...
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n7maq
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What radios do you own?: Mocom 70 w/scan!!

Re: Syntor X9K mode conversion

Post by n7maq »

etexemt wrote:Where can I get the 8kx8 EEPROM chips to upgrade a X9K to 64 modes? I have searched them on a search engine, but there are so many different kinds I'm not sure which one I need...
Any info would be appreciated...
I have got them at Fry's off of the shelf. Also Most mail order electronic parts stores will have them. The part you want is a 28C64.

OK, one more edit, look here for all of the info you will need.

http://www.open.org/~blenderm/syntorx9k ... html#x9k64

Jim.
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WB6NVH
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Post by WB6NVH »

For example, Jameco has the 28C64A-25 in dip-28 standard package at $ 4.45 each, part number 74827CG. Don't forget to reset the jumper next to the eeprom to use the larger capacity part. And that some early heads must also be upgraded.
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etexemt
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Joined: Mon Aug 25, 2003 7:49 am

Post by etexemt »

Thanks for all the help guys... I have read till I can't read anymore, and researched the same... I have found them many places, however I wasn't sure exactly which one I needed...
Thanks for everything...

Josh
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HLA
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What radios do you own?: HT1550's, X9000's, CDM1550's

Post by HLA »

there's a guy on ebay all the time too selling them by the pair for around $20.
HLA
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W6JK
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Post by W6JK »

I sell them on eBay for $9.99 a pair, including instructions with diagrams.

Jeff
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kb0nly
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Post by kb0nly »

Try and stay below 200ms access times, i prefer 120 or 150 components. I have had 250 and up chips cause fits with some radios and cause random error messages on power up because the chip was reading too slow.
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W6JK
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Post by W6JK »

Quite right, except that should be nS. Mine are 120 nS devices.

Jeff
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kb0nly
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Post by kb0nly »

Oops.. Slip of the finger there.. Yes, ns, not ms...
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