On 04/23/2020 07:43 PM, Anders Nelson via cctalk wrote:
Hey this is all super useful info, thanks!
Any idea how to visually identify a tantalum cap? I suppose I could Google
it but maybe standards have changed between 1984 and 2020?
They would be small ones on the circuit boards, not likely
i
Hey this is all super useful info, thanks!
Any idea how to visually identify a tantalum cap? I suppose I could Google
it but maybe standards have changed between 1984 and 2020?
On Thu, Apr 23, 2020, 8:06 PM Jon Elson via cctalk
wrote:
> On 04/23/2020 12:53 PM, Robert via cctalk wrote:
> > I'm u
On 4/23/20 12:12 PM, Al Kossow via cctalk wrote:
> The 9800 is the 8" little brother to the 9000 tension arm drive. The
> service manual
> is on bitsavers, it probably has a linear power supply. There is also an
> inverter
> supply shown but that is probably for special applications.
That's the
On 4/23/20 1:12 PM, Anders Nelson via cctalk wrote:
> Thanks for all the input!
>
> @Chuck: I assume you are talking about a 100W incandescent light bulb, I
> like that idea for current-limiting. And I agree a SMPS should cut off the
> switch if it detects a short; not sure what kind of supply is
Thanks for all the input!
@Chuck: I assume you are talking about a 100W incandescent light bulb, I
like that idea for current-limiting. And I agree a SMPS should cut off the
switch if it detects a short; not sure what kind of supply is in there but
I'll take a look.
@Patrick: There's a stamp on t
On 4/23/20 11:21 AM, Patrick Finnegan via cctalk wrote:
As a minimal step, I might disconnect the PSU from the rest of the drive,
and plug it in like that for a moment, but it's probably best to not run it
without a load for very long.
The 9800 is the 8" little brother to the 9000 tension arm
On Thu, Apr 23, 2020 at 11:59 AM Anders Nelson via cctalk <
cctalk@classiccmp.org> wrote:
> Cool, thanks for your take. I found some articles:
>
>-
>
> http://www.angelfire.com/electronic/funwithtubes/steps_to_first_power_on.html
>- http://www.angelfire.com/electronic/funwithtubes/Restore_
On 4/23/20 10:53 AM, Robert via cctalk wrote:
> I'm under caffeinated and not really with it yet, having recently gone semi
> nocturnal, so you'll want to double check this with someone who's actually
> awake.
>
> That said, variacs aren't a universal panacea and can sometimes be harmful
> rather
On 04/23/2020 12:53 PM, Robert via cctalk wrote:
I'm under caffeinated and not really with it yet, having recently gone semi
nocturnal, so you'll want to double check this with someone who's actually
awake.
That said, variacs aren't a universal panacea and can sometimes be harmful
rather than he
I'm under caffeinated and not really with it yet, having recently gone semi
nocturnal, so you'll want to double check this with someone who's actually
awake.
That said, variacs aren't a universal panacea and can sometimes be harmful
rather than helpful. My disorganized memory is offering TVs as a
Cool, thanks for your take. I found some articles:
-
http://www.angelfire.com/electronic/funwithtubes/steps_to_first_power_on.html
- http://www.angelfire.com/electronic/funwithtubes/Restore_cap.html
Given this unit doesn't have any tubes, I imagine the motor drivers/amps in
this thing wo
At least in radio repair of old equipment old electrolytic caps
cause all sorts of issues. Most of the guys doing restoration do a total
remove/replace on them. In my opinion,,, I think that's a little
extreme,,, but then having one fail after all the other work is done is
also a PITA.
Hi friends,
Now that I have enough hobby time having quit my job two weeks before the
apocalypse, I'm interested in poking at my Kennedy 9800 tape controller
project.
I bought the tape unit in Q3 2017 and the seller said they had powered it
up and nothing seemed awry. I have not powered it up and
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