Make this my favourite Minstrel 3 ZX81 Compatible Computer PCB

Category:
Retro Computers >> Sinclair >> Sinclair ZX81 >> Hardware >> Systems
Listing type:
Fixed Price Multiple Items
Item Condition:
New
Seller location:
Tynemouth, United Kingdom
Ending in:
6 days, 15h:11m:35s
Quantity Available
15
Latest buyer:
M***n (1)
Fixed price:
£20.00 Buy now!
Shipping Costs:
From only £1.50
Payment methods:
Paypal
Number Sold:
5 (View history)
Buyer Value Date and hour Quantity bought
M***n (1) £40.00 31/01/2020 07:34:59 2
8***y (1) £20.00 08/12/2019 21:58:14 1
p***o (26) £20.00 28/11/2019 16:19:08 1
B***l (6) £20.00 28/11/2019 04:12:55 1
Feedback on this Item
3 PositivePositive Fast shipping, excellent quality, A++ Fast shipping, excellent quality, A++ 05/02/2020 22:00:44
3 PositivePositive Very good quality board. It worked like a champ. It's is perfectly laid out. The holes are the correct size to allow the solder to nicely flow. Very good quality board. It worked like a champ. It's is perfectly laid out. The holes are the correct size to allow the solder to nicely flow. 05/01/2020 20:00:16
3 PositivePositive Great work! High quality PCB, fast shipment. Great work! High quality PCB, fast shipment. 22/12/2019 21:55:43
3.003 3

Item Number : 39921

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tynemouthsw (50) User Offline

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Fixed price: £20.00
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Description

This is the PCB to build a Tynemouth Software Minstrel Issue 3 computer. The Minstrel 3 is a Z80 base 8 bit computer which is a ZX81 / TS1000 compatible. It has 32K of RAM with high resolution graphics support, and improved composite video output where the orignal TV output would have been. It can also be configured to run as a ZX80 (but if you want 100% ZX80, see the Minstrel 2 ZX80 clone).

The PCB is the same form factor as the ZX81, so can fit in an original ZX81 / TS1000 case and use the original (or a modern replacement) membrane. You can also built it as a standalone computer with a membrane stuck to a perspex baseplate.

This auction is for a PCB and a printed guide with parts list and schematic only. The parts required are all through hole 0.1" pitch, and are all modern parts still in production. 74HC series logic is used giving the board a current consumption of around 60mA. It can be built with 74LS TTL chips (but not a mix of TTL and HC or any other range), the current consumption is then around 200mA.

More information on my blog:

http://blog.tynemouthsoftware.co.uk/2019/11/minstrel-issue-3-zx81-compatible-computer-kit.html

Picture gallery

  • Minstrel 3 ZX81 Compatible Computer PCB
  • Minstrel 3 ZX81 Compatible Computer PCB
  • Minstrel 3 ZX81 Compatible Computer PCB
  • Minstrel 3 ZX81 Compatible Computer PCB
  • Minstrel 3 ZX81 Compatible Computer PCB
  • Minstrel 3 ZX81 Compatible Computer PCB
  • Minstrel 3 ZX81 Compatible Computer PCB
  • Minstrel 3 ZX81 Compatible Computer PCB
  • Minstrel 3 ZX81 Compatible Computer PCB
  • Minstrel 3 ZX81 Compatible Computer PCB

Questions and Answers

  • Question: For earier versions LS chips are recomended HCT should work. For Minstrel 3 HC are recomended, LS can also be used. Will HCT work with Minstrel 3 as well?

    Posted by B***l (6) - 01/12/2019 16:39:22

    Answer: All HCT should work, but I haven't tested that. As long as they are all the same series it should be OK.

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Shipping and Payment

Item Location:
Tynemouth, United Kingdom
Shipping conditions:
Buyer pays shipping expenses
Shipment fee:
  • To United Kingdom :
  • First Class Post : £1.50 For initial item, £0.50 Per additional item
  • First Class Signed For : £2.50 For initial item, £0.50 Per additional item
  • To EU :
  • Airmail Post : £3.00 For initial item, £1.00 Per additional item
  • Intl Signed For : £10.00
  • To Europe (Non EU) :
  • Airmail Post : £3.00 For initial item, £1.00 Per additional item
  • Intl Signed For : £10.00
  • To Americas :
  • Airmail Post : £3.00 For initial item, £1.00 Per additional item
  • Intl Signed For : £10.00
  • To Rest of World :
  • Airmail Post : £3.00 For initial item, £1.00 Per additional item
  • Intl Signed For : £10.00
Shipment terms:
The PCB and manual are sent in a card backed envelope.
Payment methods:
Paypal

The seller accepts all responsibility for this listing

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