Sinclair ZX80 / ZX81 / Z88 Forums

Selling like hotcakes...
Three ZXpands sold today
Mark

Great pictures Andy
It looks so much better in its home environment next to a Z80 on a Zeddy PCB
Mark

Some transistor information TO-92 BC547, BC548, BC549 pinout.jpg Pinout for 2N3904 here: http://www.reprise.com/host/circuits/transistor_pinouts.asp Notice that the pinouts are not the same, but both will fit in the same holes on a circuit board 8-) Other transistor pinouts: http://hamradio.lakki.ik...

Possible transistors include

BC547B, BC547C
BC548B, BC548C
BC549B, BC549C

2N3904 should also be okay ( a very common transistor) and even available from http://www.radioshack.com (as well as many other suppliers)

http://www.digikey.com stock a good range

Mark

I understand the problem, the only thing I can suggest, is the boards being sold in packs of 5 or packs of 10. If they are put on http://www.sellmyretro.com/ by Rich that will go a long way to helping with the problem. Myself, I would be interested in buying 5, but am not sure I would find a use for...

Bill, whereabouts in the world are you? There are many silicon transistors (which are used as both signal amplifiers and digital electronic switches) that will do the job. NPN is a type of transistor (but not a part number), transistors are available in a number of different types. Why do I need to ...

(is that why there are fireworks all over the sky tonight )

Hello all, Have been lurking for a little while having found this via the main RWAP site. Registered on this forum in late September (but does not feel like that long ago! :lol: ). I have been reading a lot of the older topics. It is such a shame that a lot of the images and other attachments do not...

Very interesting!
And great work
I'll have one as well.

Mark

Something from Sinclair NOT STANDARD?? :shock: Well, sold by Amstrad under the Sinclair name... And yes, had a pin-out to suit the non-standard joystick ports on the +2 and +3 I think it unlikely that a joystick would load the +5V supply (unless it is faulty). And they only have connections to the ...