[cctalk] Re: 7485 chip history??? (Solid State Music SB-1)

2022-09-19 Thread Tom Hunter via cctalk
And I thought shipping to Australia (opposite side of the planet) was expensive. Shipping from the US to Canada should be dirt cheap as mail can move via trains not air freight. $75 shipping for an IC is crazy no matter what the destination is (except maybe Mars). Tom On Tue, Sep 20, 2022 at

[cctalk] Re: 7485 chip history??? (Solid State Music SB-1)

2022-09-19 Thread ben via cctalk
On 2022-09-19 10:18 p.m., Tom Hunter via cctalk wrote: There are a few US based Ebay sellers of the 74L85. Tom But most ebay sellers, from the USA seem to sell a item for $6.00 and $75 shipping to Canada. China $2 and $3 shipping. With Covid all shipping is several weeks. Ben.

[cctalk] Re: 7485 chip history??? (Solid State Music SB-1)

2022-09-19 Thread Tom Hunter via cctalk
There are a few US based Ebay sellers of the 74L85. Tom On Tue, Sep 20, 2022 at 10:50 AM ben via cctalk wrote: > On 2022-09-19 8:07 p.m., William Sudbrink via cctalk wrote: > > Hi, > > > > I recently acquired a Solid State Music SB-1 from which all the chips had > > been removed. I've

[cctalk] Re: 7485 chip history??? (Solid State Music SB-1)

2022-09-19 Thread Chuck Guzis via cctalk
On 9/19/22 19:07, William Sudbrink via cctalk wrote: Have a look at the 74L85 (not LS). it's one of those oddities that some of the "L" 74 series logic have different pinouts than the standard/LS/S/H/F/ One notable aspect is that it's possible to wire-OR the L series outputs--something

[cctalk] Re: 7485 chip history??? (Solid State Music SB-1)

2022-09-19 Thread ben via cctalk
On 2022-09-19 8:07 p.m., William Sudbrink via cctalk wrote: Hi, I recently acquired a Solid State Music SB-1 from which all the chips had been removed. I've reinstalled all of the chips (I located an SSM2000) and I've been trying to figure out why this board crashes my computers. The

[cctalk] 7485 chip history??? (Solid State Music SB-1)

2022-09-19 Thread William Sudbrink via cctalk
Hi, I recently acquired a Solid State Music SB-1 from which all the chips had been removed. I've reinstalled all of the chips (I located an SSM2000) and I've been trying to figure out why this board crashes my computers. The conclusion that I've come to is rather astounding. The board

[cctalk] HP 2000 hardware in Salt Lake

2022-09-19 Thread Tim Riker via cctalk
All, I'm not getting around to working on this hardware. Another potential move coming up. What's the interest level out there for HP 1000/2000 hardware? Computers: * HP-2116A 8kB - the original HP computer. There is only one other that I am aware of in existence. David Collins got

[cctalk] IBM 5100 emulation

2022-09-19 Thread Steve Lewis via cctalk
Greetings, we've extracted the Executive ROS of the IBM 5100. The PALM opcodes between the 5100 and 5110 should be identical. So we have used Christian Corti emulator code to run that Executive ROS (under Wintel environment). However, the CRC checks and transition to the Language ROS apparently