Improving Timex/Sinclair Tape Loading

Discussions about Sinclair ZX80 and ZX81 Hardware
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Danjovic
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Joined: Fri Feb 07, 2014 1:06 am

Re: Improving Timex/Sinclair Tape Loading

Post by Danjovic » Tue Aug 21, 2018 3:46 am

Thanks people for sharing this amazing project. I have routed a couple of boards for this project, being one for use with a box by Hammond, reference 1455C801 and AAA cells but can also be used standalone as it has mounting holes. I have used stereo jacks for input/output as such parts are very easy to find. The layout was drawn from scratch but the circuit was compared with the original several times.
Full sources are included (Eagle 6 and above) in the zip as well as a PDF with schematics, 1:1 view of the board and the components placement map with both values and references.
I hope you all enjoy and please whoever built it post the pictures here.

Best Regards
Danjovic

Board for Hammond Box
Board for Hammond Box
Board for Hammond Box and AAA clip holder
Board for Hammond Box and AAA clip holder
Short PCB
Short PCB
ZXTapeLoader.zip
Schematics and PCB in Eagle and PDF
(326.31 KiB) Downloaded 115 times

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TMAOne
Posts: 166
Joined: Thu Aug 16, 2012 6:56 pm
Location: Waterloo, Ontario, Canada

Re: Improving Timex/Sinclair Tape Loading

Post by TMAOne » Sat Sep 08, 2018 6:37 pm

That looks awesome Danjovic.

Lardo Boffin, do you have your prototype unit back yet? Have you had a chance to turn it loose on those tapes you can't get to load normally?

Ian

Lardo Boffin
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Joined: Sat Nov 26, 2016 2:42 am

Re: Improving Timex/Sinclair Tape Loading

Post by Lardo Boffin » Sat Sep 08, 2018 7:50 pm

Sadly no and no. I will remind Mark at some point. :D
ZX80
ZX81 iss 1 (bugged ROM, kludge fix, normal, rebuilt)
Iss 3 ZXVid
TS 1000 iss 3, ZXPand AY, ZX8-CCB, ZX-KDLX & ChromaSCART
TS 1500
TS 2000
Spectrum 16k (iss 1 s/n 1499)
Various Spectrum 48ks plus a DIVMMC future and SPECTRA

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TMAOne
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Location: Waterloo, Ontario, Canada

Re: Improving Timex/Sinclair Tape Loading

Post by TMAOne » Wed Jan 30, 2019 8:08 pm

(Poke.)

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gammaray
Posts: 586
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Location: Texas

Re: Improving Timex/Sinclair Tape Loading

Post by gammaray » Thu Jan 31, 2019 2:39 am

I am going to see if I can make a PCB for the people in the States before anyone else gets further on this...

Shipping is cheaper on the continent.
5-TS1000,UK ZX81<-Sheelagh, US ZX81, 2-TS1500/KDLX , 3-TS2040 printer, 2-TS2020 cassette decks, ZXPAND+AY, ZeddyNET, ZXBlast, UDG, ZX8CCB, AERCO, BUILDS/REPAIRS ZX Spectrum, ZX80 Minstrel, ZXMAX48 v1 v2, 2-TS-2068, ROM, 16kRAM

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Papalapa
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Joined: Wed May 01, 2019 4:52 pm
Location: Barcelona

Re: Improving Timex/Sinclair Tape Loading

Post by Papalapa » Mon May 06, 2019 3:18 pm

The components density on the board is quite low so, most probably a smallest PCB can be done and installed into the ZX81 case, and the voltage taken from the ZX81 itself that will avoid the batteries use.

When I get my ZX8 repaired I'll investigate about this...

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TMAOne
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Location: Waterloo, Ontario, Canada

Re: Improving Timex/Sinclair Tape Loading

Post by TMAOne » Fri Jun 28, 2019 5:52 pm

That's a cool idea, but I'm not sure I'd want it inside the case. I use mine as a "sometimes" device for direct dubbing one tape to another, and the rescue of the odd tape that "just won't load". It might be possible to cram it in there; I'm just not sure it's worth the trouble.

Any luck with the PCB gammaray?

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TMAOne
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Location: Waterloo, Ontario, Canada

Re: Improving Timex/Sinclair Tape Loading

Post by TMAOne » Fri Aug 30, 2019 8:35 pm

I am concerned about our friend in Texas, gammaray. He was a regular poster on this forum, but hasn't posted anything since February. I hope he's all right. Does anyone know of a way to get in touch with him?

Of secondary importance I am saddened that this "project" (a kit so we could all build a working copy of the tape scrubber/dubber) seems to have waned in enthusiasm. I still have and use my 1-off prototype built in the 80's, and wouldn't trade it for a Nakamichi 1000. (Well, okay,... maybe.) It has "recovered" many an "unloadable" tape, and allowed me to dub perfect copies of C90's for friends wholesale without loading to the ZX81. It's a great little toy, but alas I may be doomed to be the only one who knows it. (Sniff.) If anyone wants to send a problematic tape to me here in Canada, I would gladly attempt to process it and return the result. But far nicer to actually have one in the weapons locker,...

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1024MAK
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Location: Looking forward to summer in Somerset, UK...

Re: Improving Timex/Sinclair Tape Loading

Post by 1024MAK » Fri Aug 30, 2019 10:16 pm

Sorry, the delay is 100% my fault :oops: . Far too many distractions coupled with rather a lot going on with my work life.

I’ll go poke myself with a ULA hot soldering iron :shock:

Mark

Moggy
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Joined: Wed Jun 18, 2008 2:00 pm

Re: Improving Timex/Sinclair Tape Loading

Post by Moggy » Fri Aug 30, 2019 11:20 pm

I'd pay top dollar to see that!! :lol:

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