Digest for sci.electronics.repair@googlegroups.com - 9 updates in 6 topics

Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net>: Mar 11 10:58AM -0500

On 03/10/2017 01:50 PM, John Robertson wrote:
> the banana, they don't actually look much like a banana. More like a
> zucchini. Its the curve that is in the banana but not the jack!
 
> John :-#)#
 
It's the peel splitting into four AFAIR.
 
Cheers
 
Phil Hobbs
 
--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC
Optics, Electro-optics, Photonics, Analog Electronics
 
160 North State Road #203
Briarcliff Manor NY 10510
 
hobbs at electrooptical dot net
http://electrooptical.net
Robert Roland <fake@ddress.no>: Mar 11 11:08AM +0100

On Fri, 10 Mar 2017 21:11:57 -0000, MJC <gravity@mjcoon.plus.com>
wrote:
 
>> One ohm is brown, black, gold.
 
>> Zero ohm should be black, black, any.
 
>Are you saying that approximately zero is good enough?
 
I'm not sure I understand your question, but the third band is the
multiplier, and since the two first bands are zero, you can multiply
with anything you like. So, black, black, white would still be zero.
 
Now that I think about it, one ohm could also be black, brown, black.
--
RoRo
MJC <gravity@mjcoon.plus.com>: Mar 11 12:40PM

In article <lri7cc9u3e24tmsq8hvlb2e75o75t3m1r3@4ax.com>, fake@ddress.no
says...
> multiplier, and since the two first bands are zero, you can multiply
> with anything you like. So, black, black, white would still be zero.
 
> Now that I think about it, one ohm could also be black, brown, black.
 
Yes, see the point; I went off half-cock (approx) thinking the "any" was
tolerance. I suppose a minus power of ten multiplier would be good, too
(I forget the colours)...
 
Mike.
Robert Roland <fake@ddress.no>: Mar 11 11:46AM +0100

On Fri, 10 Mar 2017 18:13:53 -0000, "Gareth Magennis"
 
>I am having difficulty finding a 1/3AA Lithium battery.
 
They are called CR1/3N or CR11108. Search for that, and you'll find.
If you can find them with solder tabs, however, is another matter.
 
>It is for this application, any substitute has to fit in pretty much the
>same space as 1/3AA, there is no spare room.
>http://wolzow.mindworks.ee/analog/jx-10-m-16c.htm
 
It looks to me like this battery is used only for keeping the SRAM
data alive. If so, the current draw will be very low. If you can find
a smaller 3V cell, that will still work for a long time.
 
You could also stack two LR44 cells. The size should be about right.
 
>I did find rechargeable NiMH types, but I don't think they will keep their
>charge for the years expected of a memory backup battery?
 
Rechargeables are not the right tool for this job.
 
>Perhaps I could utilise watch type button cells, if I could find a holder
>for them.
 
That is a good idea. If you can find a combination of holder and
battery that will fit, that would be a good solution. You could look
for both dual 1.5V or single 3V solution.
 
Looking at the device, it does not look complicated at all. Are the
high prices because of the collectible value, or would people be
willing to pay similar money for a new, compatible device?
--
RoRo
"Gareth Magennis" <soundserviceleeds@outlook.com>: Mar 11 11:01AM

"Robert Roland" wrote in message
news:m4k7cc5eejjhhhvtvp570codcg6fe8eg9l@4ax.com...
 
On Fri, 10 Mar 2017 18:13:53 -0000, "Gareth Magennis"
 
>I am having difficulty finding a 1/3AA Lithium battery.
 
They are called CR1/3N or CR11108. Search for that, and you'll find.
If you can find them with solder tabs, however, is another matter.
 
>It is for this application, any substitute has to fit in pretty much the
>same space as 1/3AA, there is no spare room.
>http://wolzow.mindworks.ee/analog/jx-10-m-16c.htm
 
It looks to me like this battery is used only for keeping the SRAM
data alive. If so, the current draw will be very low. If you can find
a smaller 3V cell, that will still work for a long time.
 
You could also stack two LR44 cells. The size should be about right.
 
>I did find rechargeable NiMH types, but I don't think they will keep their
>charge for the years expected of a memory backup battery?
 
Rechargeables are not the right tool for this job.
 
>Perhaps I could utilise watch type button cells, if I could find a holder
>for them.
 
That is a good idea. If you can find a combination of holder and
battery that will fit, that would be a good solution. You could look
for both dual 1.5V or single 3V solution.
 
Looking at the device, it does not look complicated at all. Are the
high prices because of the collectible value, or would people be
willing to pay similar money for a new, compatible device?
--
RoRo
 
 
 
 
**********************************************************
 
 
Ah, thanks for that, I was only searching 1/3AA.
 
Farnell have this, which I could make fit.
http://uk.farnell.com/varta/6131201501/battery-lithium-cr1-3n-170mah/dp/1781983
 
 
I think the original Roland cartridges would have some
collectible/sentimental value, but mostly people just want a working RAM
cartridge, as for some equipment this is the only way to get sounds in and
out of it.
 
 
 
Cheers,
 
 
Gareth.
Cursitor Doom <curd@notformail.com>: Mar 11 10:42AM

On Wed, 08 Mar 2017 22:58:08 -0800, jurb6006 wrote:
 
> Sorry I did not get the studio version, but this one looks interesting.
 
Certainly did!
 
> But I hate to say it, you will never catch me dead anywhere in
> California. Maybe fifty years ago but not today, even if I could afford
> the rents there.
 
It all seemed to go tits-up right at the dog-end of 1969, around the time
of the Alta Mont free concert and that awful business involving Charlie
Manson and his 'Family' - and never recovered. :(
jurb6006@gmail.com: Mar 11 12:30AM -0800

> -- https://m.youtube.com/watch?v=bqRL4Znh8Xs
 
> (16 minute clip onward)
 
Not really into videos but I can tell you this. If you got a service like Onstar and your car has ABS and traction control you can be hacked very badly, to the point where it can cause a wreck. I read about this a coupke of years ago, and now that cars are running Windows I am sure it is quite worse.
 
Get me a 1967 Chevy. I will make sure to watch where I am goig and won't need the steering assistance to stay in my lane nor the automatic braking in case I am headed for a stationary object at 80 MPH. I know not to do that, they taught me when I was about 12.
 
Stupid motherfuckers today, half of them SHOULD be dead.
Jim Mueller <wrongname@nospam.com>: Mar 11 06:02AM

On Fri, 10 Mar 2017 18:04:32 +0000, analogdial wrote:
 
> East are cheap, noisy, low quality. And as soon as I hear that the
> Chinese have mastered the art of making "High Quality apacitors.", I'll
> be doubling up on my Mandarin lessons.
 
 
And if you look at their listings, the capacitors are made by a mix of
manufacturers, some that I've heard of, some not. It appears that they
are a surplus house.
 
--
Jim Mueller wrongname@nospam.com
 
To get my real email address, replace wrongname with dadoheadman.
Then replace nospam with fastmail. Lastly, replace com with us.
whit3rd <whit3rd@gmail.com>: Mar 10 11:55PM -0800


> No, not being stubborn , I just dont want caps made in China. Not much
> of anything made in China is a quality item.
 
If "the quality" is capacitance, or leakage current, or standoff voltage,
or self-resonant frequency, or series resistance, the radio cares.
 
It doesn't care about 'made in China'.
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