So TK70 is working again, and the solution was not what I thought.
Yesterday I spent the afternoon adjusting the capstan bolts, first one,
then the other to see if the height adjustment worked. I found that the
rear one (also known as the encoder) was the most sensitive to bolt
tension.
On Sat, Feb 13, 2021 at 12:05 PM Bill Gunshannon via cctalk
wrote:
> The one I have in front of me is the SPO256-AL2 (actual chip is labeled
> SPO256-017) and the package includes an SPR016-117 which is listed as an
> External Serial Speech ROM. Would probably be fun to hook it up to an
>
On 2/13/21 3:43 PM, Henk Gooijen wrote:
I know the SP0256-AL2 (it is a zero not an “ooo”).
Yes, the Wiki points that out.
That chip is a phoneme generator and it was described in a BYTE issue.
Do you remember which issue?
It has (IIRC) 6 “data” inputs to select one of the 64 stored
Den lör 13 feb. 2021 kl 21:06 skrev Chuck Guzis :
> On 2/13/21 11:15 AM, Mattis Lind wrote:
>
> > As to the 8x/5xH intervals, they appear to be part of the
> > preamble to address marks.
> >
> >
> > Can you please elaborate! What do you mean by 8x/5xH intervals?
> >
> > You think that
I know the SP0256-AL2 (it is a zero not an “ooo”).
That chip is a phoneme generator and it was described in a BYTE issue.
It has (IIRC) 6 “data” inputs to select one of the 64 stored phonemes,
and a strobe signal. Depending on the suffix (here “-AL2”) it contains
certain phonemes and can
On 2/13/21 11:15 AM, Mattis Lind wrote:
> As to the 8x/5xH intervals, they appear to be part of the
> preamble to address marks.
>
>
> Can you please elaborate! What do you mean by 8x/5xH intervals?
>
> You think that these fluxes are part of some address mark or data mark,
> right?
Den lör 13 feb. 2021 kl 19:45 skrev Chuck Guzis via cctalk <
cctalk@classiccmp.org>:
> On 2/13/21 9:18 AM, Mattis Lind via cctalk wrote:
>
>
> > Link contains histogram files and a raw track flux file.
> >
> >
> https://drive.google.com/drive/folders/1URC5i8AsRyP08d_ZhWRovbDp2TMgdj4B?usp=sharing
Den lör 13 feb. 2021 kl 18:40 skrev Jon Elson :
> On 02/13/2021 11:18 AM, Mattis Lind via cctalk wrote:
> > The longest flux lengths are interspersed in between more normal flux
> > lengths in the actual data and I get the same type of result regardless
> of
> > reads of the same track and
I'm discovering that WORM is a world in itself.
After taking forever to try to image a 470MB disc and taking forever to
do it because of automatic retries on unwritten sectors, I've discovered
that WORM has a SCSI2 command that's unique to it--38H, "Medium Scan"
which can be used to identify
On 2021-02-13 1:05 p.m., Bill Gunshannon via cctalk wrote:
On 2/13/21 11:44 AM, ED SHARPE via cctalk wrote:
Bill...this just struck a memory I think I have a Radioshack
Digitalker in a packaging but recall it being just one large
chip... Ed # SMECC
The one I have in front of me is
On 2/13/21 9:18 AM, Mattis Lind via cctalk wrote:
> Link contains histogram files and a raw track flux file.
>
> https://drive.google.com/drive/folders/1URC5i8AsRyP08d_ZhWRovbDp2TMgdj4B?usp=sharing
>
A quick glance shows the typical t 1.5t and 2t MFM pattern, so I'd start
with that. As to
Hi,
On 2/13/21 9:15 AM, Bill Gunshannon via cctalk wrote:
On 2/12/21 6:09 PM, Ethan Dicks via cctalk wrote:
On Fri, Feb 12, 2021 at 6:01 PM Jim Brain via cctalk
wrote:
But, I'm sad because no one either has one nor can help me test this
one. So, I cannot enjoy the thrill of making it say
On 02/13/2021 11:18 AM, Mattis Lind via cctalk wrote:
The longest flux lengths are interspersed in between more normal flux
lengths in the actual data and I get the same type of result regardless of
reads of the same track and between different tracks. But the relative
frequency is much much
I have a few 8 inch floppy disks coming from a Q1 Lite computer. I tried
reading them on a PC with a Adaptec 1522A floppy controller but it failed
completely.
Then I tried my Catweasel and dumped the raw flux data. The format differs
from what I have seen before.
I did a quick histogram of the
On 2/13/21 11:44 AM, ED SHARPE via cctalk wrote:
Bill...this just struck a memory I think I have a Radioshack Digitalker in a
packaging but recall it being just one large chip... Ed # SMECC
The one I have in front of me is the SPO256-AL2 (actual chip is labeled
SPO256-017) and the
Bill...this just struck a memory I think I have a Radioshack Digitalker in a
packaging but recall it being just one large chip... Ed # SMECC
On Saturday, February 13, 2021 Bill Gunshannon via cctalk
wrote:
On 2/12/21 6:09 PM, Ethan Dicks via cctalk wrote:
> On Fri, Feb 12, 2021 at 6:01
On 2/12/21 6:09 PM, Ethan Dicks via cctalk wrote:
On Fri, Feb 12, 2021 at 6:01 PM Jim Brain via cctalk
wrote:
But, I'm sad because no one either has one nor can help me test this
one. So, I cannot enjoy the thrill of making it say inappropriate stuff :-(
I have several vintage speech ICs,
On 13/02/2021 09:03, Paul Anderson via cctalk wrote:
I think the DEC one was the RX20 or RZ20. It will take a while to find it,
but I'll check the model number..
Paul
The DEC RV20 was announced in 1988. Those were quite large as I recall
(bigger than an LP). ~2GB write-once.
There was the
On 2/13/2021 3:13 AM, ED SHARPE via cctalk wrote:
oddly... I still have the prototype unit we built to plug into HP 2000
series processors and 21mx processors. it sits in my den...I was looking
at it the other day! and then your message popped up/ What are looking
for I
oddly... I still have the prototype unit we built to plug into HP 2000
series processors and 21mx processors. it sits in my den...I was looking
at it the other day! and then your message popped up/ What are looking
for I am not sure I got all the prior emails on
I think the DEC one was the RX20 or RZ20. It will take a while to find it,
but I'll check the model number..
Paul
On Fri, Feb 12, 2021 at 2:12 PM jim stephens via cctalk <
cctalk@classiccmp.org> wrote:
>
>
> On 2/12/2021 11:46 AM, Chuck Guzis via cctalk wrote:
> > On 2/11/21 9:31 AM, Chuck
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