econet
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econet [2013-10-02 02:04] – [Model B Upgrade Kit] tim | econet [2013-10-03 13:16] – [Terminators] tim | ||
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* File server: Level 1 (very basic) can be run on any BBC with a floppy. Level 2-3 require a second processor (which we have). Archimedes can also act as a file server with some free software. | * File server: Level 1 (very basic) can be run on any BBC with a floppy. Level 2-3 require a second processor (which we have). Archimedes can also act as a file server with some free software. | ||
- | ===== Model B Upgrade Kit ===== | + | ===== Econet Clock ===== |
+ | |||
+ | Option 1: Aftermarket and fully configurable [[http:// | ||
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+ | Option 2: [[http:// | ||
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+ | Option 3: Build our own clock with an ATtiny and a differential driver IC. Would need to consider the maximum speed at which the ATtiny could maintain a clean clock signal. If we take this option, I would suggest building it into a hub unit with 4-5 sockets (2 passthrough and 2-3 workstation), | ||
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+ | ===== Terminators ===== | ||
+ | |||
+ | A passive design, suitable for building into a 5-pin DIN plug, is available: | ||
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+ | http:// | ||
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+ | | 2 | 56R 0.25W resistor | | ||
+ | | 1 | 220R 0.25W resistor | | ||
+ | | 2 | 1K 0.25W resistor | | ||
+ | | 1 | 10uF 16V tantalum capacitor | | ||
+ | |||
+ | We will probably need to purchase 1/4W resistors as most of our stock is 1/2W. | ||
+ | |||
+ | We would require two terminators, | ||
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+ | ===== BBC Master Upgrade Modules ===== | ||
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+ | Tim has ordered a [[http:// | ||
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+ | We will burn our own ANFS EPROMS. | ||
+ | |||
+ | ===== BBC Model B Upgrade Kit ===== | ||
^ Quantity ^ Part ^ Supplier ^ | ^ Quantity ^ Part ^ Supplier ^ |
econet.txt · Last modified: 2015-10-05 15:55 by 127.0.0.1