Costings for a 'SAM Plus' would not be too high as the legacy ICs are quite cheap :
Z84C0020VEC or PEC about £1.50 K6T4008 about £2.70 W27C512 or W27C010 about £0.60 EPM7512 Expensive £20 SAA1099 about £1.50 Plus : AY-3-8910 PSG (Spectrum) about £1.75 V9958+VRAM second VDP about £5 Miscellaneous ICs, 7805,DACs etc about £5.0 Resistors capacitors etc £5.0 Double sided board PCB.... approx £7.50-£10 multilayer board ??? Total Cost : > £55 ?? To design would take about six months or so... How many would sell , even for cost ?? The real question is how many would be ordered and it is worth the effort for such a small number ? On 3 May 2013 20:00, david brant <[email protected]> wrote: > Yes but Bob wanted us to buy a ROM thing to sort out BASIC which I thought > was pointless. Most of the time it works fine unless you write a very long > program or use lots of DIM in it. But I've never written such big programs. > > If he come up with new hardware he may got better input or at listen to us > coders!!!! > > On 3 May 2013, at 19:49, Gavin Smith wrote: > > A super SAM-type project has been talked about since Bob Brenchley kept us > all going about his SamSon idea! If it's ever to happen, it will take > someone to do it off their own back and just see it through because most of > us on this list will be too skeptical and jaded to lend much support! I > think such a project might even have had a wider market if it had been done > years ago, before the Raspberry Pi. > > Colin has already got a 20+MHz Sam working with his prototype mayhem > accelerator and the last time he mentioned it in his mag, he was looking at > CPLD to reduce logic. He has also hinted in SR that a special issue would > cover a secret project he was working on so maybe it's related to a Quazar > Super Sam? > > Sent from my iPad > > On 3 May 2013, at 19:30, Leslie Anderson <[email protected]> wrote: > > Would anybody buy it ??? How many SAM users would want one ?? And I'd have > to do costings to see how much the final unit would cost ! But if there are > people interested just let me know. > > > On 3 May 2013 19:13, david brant <[email protected]> wrote: > >> Well what you waiting for if it that easy! No idea with hardware myself. >> >> On 3 May 2013, at 18:46, Leslie Anderson wrote: >> >> > Perhaps it's time for someone to design a NEW SAM COUPE..... SAM II + or >> > Super SAM. What was done on the original SAM in dozen of chips could >> now >> > be done in about 8 distinctive ICs.... Then everyone could have a Super >> SAM! >> > >> > Z84C0020 Z80 CPU.. 20MHz >> > K6T4008 512Kx 8 bit SRAM >> > W27C010 128K EEPROM >> > MAX EPM7512 CPLD 512 macrocells >> > SAA1099 Sound (PSG) >> > >> > >> > The MAX EPM7512 would be used to generate video, perform I/O, Memory >> > Decoding etc. The original ZX Spectrum ULA used about 144 macrocells, so >> > 512 should be enough. >> > >> > >> > On 3 May 2013 18:03, david brant <[email protected]> wrote: >> > >> >> >> >> How about some means that you need the hardware to work on the PC,Mac >> etc >> >> > >
