Search found 23 matches

by rcade
Mon Jul 06, 2020 2:33 am
Forum: Hardware
Topic: I think I killed her.. :_(
Replies: 7
Views: 292

Re: I think I killed her.. :_(

We've all done it at some time or another... :)

RAM chips go bad if you just look at them wrong, so I would first try replacing them.
by rcade
Sun Mar 08, 2020 5:17 am
Forum: Hardware
Topic: Does Anyone Recognize This Pattern?
Replies: 19
Views: 7613

Re: Does Anyone Recognize This Pattern?

Note that 4116 RAM chips will all fail nearly instantly and fatally without the proper -5v.
by rcade
Wed Oct 23, 2019 4:34 pm
Forum: ZX Spectrum Lounge
Topic: Differences between the ZX Spectrum and the Timex 2048-68
Replies: 8
Views: 3576

Re: Differences between the ZX Spectrum and the Timex 2048-68

That's strange that the TC2068 needed a compatibility cartridge. When I had a TS2068, I exchanged the ROM for the TC2068 to gain back the Spectrum compatibility and it worked well.
by rcade
Wed Oct 23, 2019 3:57 am
Forum: ZX Spectrum Lounge
Topic: Differences between the ZX Spectrum and the Timex 2048-68
Replies: 8
Views: 3576

Re: Differences between the ZX Spectrum and the Timex 2048-68

It was pointless to make it incompatible with the Spectrum, because that meant it would have no software. Of course that made it 100% a market failure.
by rcade
Wed Oct 23, 2019 3:55 am
Forum: ZX Spectrum Lounge
Topic: TS 2068 replica finally done!
Replies: 4
Views: 3029

Re: TS 2068 replica finally done!

Yes, please let us know how you made one to this amount of detail by hand...
by rcade
Tue Jul 23, 2019 5:46 pm
Forum: Hardware
Topic: 2732 to 2532 adaptation
Replies: 8
Views: 1398

Re: 2732 to 2532 adaptation

I had to connect pin 18 to GND (pin 12) when I adapted a 2732A on my PET, or else the machine was unstable. It would work sometimes and not others, depending on whether the case was up or down. Very strange... Yeah, if using a 2732 in place of a 2532, the unused control pin (be it /CE, /CS, /OE, /E...
by rcade
Tue Jul 23, 2019 3:37 pm
Forum: Hardware
Topic: 2732 to 2532 adaptation
Replies: 8
Views: 1398

Re: 2732 to 2532 adaptation

I had to connect pin 18 to GND (pin 12) when I adapted a 2732A on my PET, or else the machine was unstable. It would work sometimes and not others, depending on whether the case was up or down. Very strange...
by rcade
Sun Feb 17, 2019 4:32 am
Forum: WANTED
Topic: Looking foir a TS1500
Replies: 7
Views: 3201

Re: Looking foir a TS1500

They go for a lot for some reason... I don't understand it. There must be more SInclair collectors in the US than we think.
by rcade
Mon Dec 03, 2018 5:28 pm
Forum: SALES
Topic: A Gaggle of ZX81's for sale
Replies: 8
Views: 4241

Re: A Gaggle of ZX81's for sale

Wow, I could use a couple of them, but not 15!
by rcade
Sat May 26, 2018 4:05 am
Forum: SALES
Topic: Vintage Timex Sinclair 1000 Personal Computer
Replies: 5
Views: 3071

Re: Vintage Timex Sinclair 1000 Personal Computer

They are $10-20 here in the states. He will never sell for that to a normal user. Especially without the RAM pack.