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:
This listing is closed (05/11/2020)

Notify When Back in Stock
Quantity Available
3
Latest buyer:
q***1 (1)
Fixed price:
£20.00
Shipping Costs:
From only £2.00
Payment methods:
Paypal
Number Sold:
17 (View history)
Buyer Value Date and hour Quantity bought
q***1 (1) £20.00 26/10/2020  14:13:38 1
T***b (2) £20.00 07/10/2020  22:02:14 1
a***3 (1) £20.00 27/09/2020  17:53:09 1
g***r (0) £20.00 19/09/2020  16:33:01 1
G***k (12) £20.00 17/09/2020  05:07:24 1
m***9 (0) £20.00 03/09/2020  16:45:51 1
d***a (7) £40.00 30/08/2020  00:19:05 2
g***e (18) £40.00 14/08/2020  19:58:27 2
G***1 (2) £20.00 05/08/2020  16:10:18 1
a***0 (1) £20.00 03/08/2020  09:58:17 1
M***n (2) £40.00 31/01/2020  07:34:59 2
8***y (3) £20.00 08/12/2019  21:58:14 1
p***o (26) £20.00 28/11/2019  16:19:08 1
B***l (9) £20.00 28/11/2019  04:12:55 1
Feedback on this Item
PositivePositive g***e (18) Shipped quickly, bought a completed one from Tindie. Awesome little machine. Now to turn these into little laptops! 01/09/2020  17:05:30
PositivePositive M***n (2) Fast shipping, excellent quality, A++ 05/02/2020  22:00:44
PositivePositive 8***y (3) 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
PositivePositive B***l (9) Great work! High quality PCB, fast shipment. 22/12/2019  21:55:43

WARNING: Due to the impact of coronavirus, delivery times across the World are severely impacted, with some countries refusing to accept postage completely.

Item Number : 39921

Meet the seller

tynemouthsw (55) User Offline

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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 case and use the original (or a modern replacement) membrane. (note the video out connector is in a different place on the TS1000, so those cases are not suitable withtout modification). 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 (9) - 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 : £2.00 For initial item, £0.50 Per additional item
  • To EU :
  • Airmail Post : £3.00 For initial item, £1.00 Per additional item
  • To Rest of World :
  • Airmail Post : £6.00 For initial item, £1.50 Per additional item
  • To USA :
  • Airmail Post : £6.00 For initial item, £1.50 Per additional item
Shipment terms:
The PCB and manual are sent first class large letter. Untracked letter post is the only option available at the moment.
Payment methods:
Paypal

The seller accepts all responsibility for this listing

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