| 1764 REU Power Supply Issue [message #185768] |
Sun, 11 November 2007 16:56  |
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Originally posted by: John Degnan
Just read up on some info about the 1764 REU... how one supposedly needs an
upgraded power supply to use one of them on a C=64. Is this true? Can
anyone elaborate?
Thanks in advance.
John Degnan
Scaler164@comcast.net
The burden of proof of whether or not there is a God is not on the Believer,
it is on the UNbeliever...
For the Believer doesn't have hell to pay if wrong!
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| Re: 1764 REU Power Supply Issue [message #185772 is a reply to message #185768] |
Sun, 11 November 2007 18:26  |
Sam Gillett
Messages: 2422
Registered: June 2003
Karma: 0
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Senior Member |
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"John Degnan" wrote ...
> Just read up on some info about the 1764 REU... how one supposedly needs an
> upgraded power supply to use one of them on a C=64. Is this true? Can
> anyone elaborate?
Yes, this is true. The C64 power supply was prone to failure even when it
was only powering the computer. Add any additional load and it becomes even
more likely to fail. That is why, back in "the day", there were several
third party vendors producing heavy duty power supplies for the C64.
Ramswell may have some for sale. If not, you might be able to find one on
eBay.
How to build a do-it-yourself power supply has been discussed several times
in this newsgroup in the last year (and before).
--
Best regards,
Sam Gillett
Change is inevitable,
except from vending machines!
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| Re: 1764 REU Power Supply Issue [message #185776 is a reply to message #185772] |
Sun, 11 November 2007 19:18 |
ramswell
Messages: 1808
Registered: January 2012
Karma: 0
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Senior Member |
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On Nov 11, 3:26 pm, "Sam Gillett" <sgillettnos...@diespammergte.net>
wrote:
> "John Degnan" wrote ...
>
>> Just read up on some info about the 1764 REU... how one supposedly needs an
>> upgraded power supply to use one of them on a C=64. Is this true? Can
>> anyone elaborate?
>
> Yes, this is true. The C64 power supply was prone to failure even when it
> was only powering the computer. Add any additional load and it becomes even
> more likely to fail. That is why, back in "the day", there were several
> third party vendors producing heavy duty power supplies for the C64.
>
> Ramswell may have some for sale. If not, you might be able to find one on
> eBay.
>
> How to build a do-it-yourself power supply has been discussed several times
> in this newsgroup in the last year (and before).
> --
> Best regards,
>
> Sam Gillett
>
> Change is inevitable,
> except from vending machines!
Thanks a lot Sam, but I am out at the moment. However, if he can get
a hold of a C-128 PSU, I'll be MORE THAN HAPPY to modify it for his
use... ;)
Charles> 8-Bit Designs
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| Re: 1764 REU Power Supply Issue [message #185778 is a reply to message #185772] |
Sun, 11 November 2007 19:34 |
rusure
Messages: 1030
Registered: March 2012
Karma: 0
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On Nov 11, 4:26 pm, "Sam Gillett" <sgillettnos...@diespammergte.net>
wrote:
>
> Yes, this is true. The C64 power supply was prone to failure
> even when it was only powering the computer. any additional
> load and it becomes even more likely to fail. That
> is why, back in "the day", there were several third party
> vendors producing heavy duty power supplies for the C64.
Because of the heavy duty PSU rarity, it may be easier to
modify a C128 PSU to hook up to a C64. Of course the optimum
resolution of the issue is to get a whole C128. I think
there were no 1764 issues with C128s. I saw C128 PSUs here:
http://www.geocities.com/c64-128-amiga/sale/
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| Re: 1764 REU Power Supply Issue [message #185799 is a reply to message #185778] |
Mon, 12 November 2007 10:45 |
Riccardo Rubini
Messages: 969
Registered: July 2003
Karma: 0
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Senior Member |
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rusure wrote:
> On Nov 11, 4:26 pm, "Sam Gillett" <sgillettnos...@diespammergte.net>
> wrote:
>>
>> Yes, this is true. The C64 power supply was prone to failure
>> even when it was only powering the computer. any additional
>> load and it becomes even more likely to fail. That
>> is why, back in "the day", there were several third party
>> vendors producing heavy duty power supplies for the C64.
>
> Because of the heavy duty PSU rarity, it may be easier to
> modify a C128 PSU to hook up to a C64. Of course the optimum
> resolution of the issue is to get a whole C128. I think
> there were no 1764 issues with C128s. I saw C128 PSUs here:
The 1764 PSU and the C128 PSU are identical. I have managed to get a hold of
5 sealed 1764 units ( hmm, maybe more ), a few years ago when I cleaned a
CBM dealer's warehouse, and actually I did the other way round: modified a
couple of these PSUs to use them with C128 units I got without PSU ( yep, I
found spares for the uber-rare square plug ). They are perfectly
interchangeable in terms of volts, ampere... Everything was the same.
Riccardo
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| Re: 1764 REU Power Supply Issue [message #185801 is a reply to message #185768] |
Mon, 12 November 2007 10:58 |
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Originally posted by: bluebirdpod
On Nov 11, 2:56 pm, "John Degnan" <scaler...@comcast.net> wrote:
> Just read up on some info about the 1764 REU... how one supposedly needs an
> upgraded power supply to use one of them on a C=64. Is this true? Can
> anyone elaborate?
>
> Thanks in advance.
>
> John Degnan
> Scaler...@comcast.net
> The burden of proof of whether or not there is a God is not on the Believer,
> it is on the UNbeliever...
> For the Believer doesn't have hell to pay if wrong!
Well if you got the ORIGINAL box with all contents of a 1764 REU, then
the higher capacity power supply is inside the box, and as mentioned
in this post, yes the C128's PS is the same rating, hell CBM prolly
just changed the plug, since all C64's required 9Volts AC, becareful
not to confuse a Amiga 500 Power Supply with a C128's, they are the
same size, but a Amiga's PS does not have 9volts AC., instead its a
switching powersupply only, and offers 5V DC and 12V DC, and will not
work, they are also much lighter due to the fact there is no AC
transformer inside the box. Also there is a power switch
on the brick part, only Amiga PS's has this.
So go find a C128's PS, and cut the cord off a regular C64's PS, and
solder it inside the C128's PS, Hell I have one that has both cords
attached, but make sure to only run one computer at a time, as you
might overload it trying to run two computers.
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| Re: 1764 REU Power Supply Issue [message #185880 is a reply to message #185799] |
Mon, 12 November 2007 20:35 |
Joseph Fenn
Messages: 373
Registered: July 2003
Karma: 0
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Senior Member |
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On Mon, 12 Nov 2007, Riccardo Rubini wrote:
> rusure wrote:
>> On Nov 11, 4:26 pm, "Sam Gillett" <sgillettnos...@diespammergte.net>
>> wrote:
>>>
>>> Yes, this is true. The C64 power supply was prone to failure
>>> even when it was only powering the computer. any additional
>>> load and it becomes even more likely to fail. That
>>> is why, back in "the day", there were several third party
>>> vendors producing heavy duty power supplies for the C64.
>>
>> Because of the heavy duty PSU rarity, it may be easier to
>> modify a C128 PSU to hook up to a C64. Of course the optimum
>> resolution of the issue is to get a whole C128. I think
>> there were no 1764 issues with C128s. I saw C128 PSUs here:
>
> The 1764 PSU and the C128 PSU are identical. I have managed to get a hold of
> 5 sealed 1764 units ( hmm, maybe more ), a few years ago when I cleaned a
> CBM dealer's warehouse, and actually I did the other way round: modified a
> couple of these PSUs to use them with C128 units I got without PSU ( yep, I
> found spares for the uber-rare square plug ). They are perfectly
> interchangeable in terms of volts, ampere... Everything was the same.
>
> Riccardo
Joe wrote:
IN fact even with the C128 pwr brick, I cut a part of the plastic case
covering the guts off, so its been air cooled ever since! It was
used heavily when I was a STATE MARS coordinator for Packet useage
and emgcy traffice etc.
Joe
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| Re: 1764 REU Power Supply Issue [message #185990 is a reply to message #185801] |
Wed, 14 November 2007 16:32 |
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Originally posted by: Klompmeester
"bluebirdpod" <bluebirdpod@gmail.com> wrote in message
news:1194883106.791828.246390@o38g2000hse.googlegroups.com...
> On Nov 11, 2:56 pm, "John Degnan" <scaler...@comcast.net> wrote:
>> Just read up on some info about the 1764 REU... how one supposedly needs
>> an
>> upgraded power supply to use one of them on a C=64. Is this true? Can
>> anyone elaborate?
>>
>> Thanks in advance.
>>
>> John Degnan
>> Scaler...@comcast.net
>> The burden of proof of whether or not there is a God is not on the
>> Believer,
>> it is on the UNbeliever...
>> For the Believer doesn't have hell to pay if wrong!
>
> Well if you got the ORIGINAL box with all contents of a 1764 REU, then
> the higher capacity power supply is inside the box, and as mentioned
> in this post, yes the C128's PS is the same rating, hell CBM prolly
> just changed the plug, since all C64's required 9Volts AC, becareful
> not to confuse a Amiga 500 Power Supply with a C128's, they are the
> same size, but a Amiga's PS does not have 9volts AC., instead its a
> switching powersupply only, and offers 5V DC and 12V DC, and will not
> work, they are also much lighter due to the fact there is no AC
> transformer inside the box.
That is not true of all A500 supplies since all the 240v A500 supplies I
have ever had have had a transformer inside.
Also there is a power switch
> on the brick part, only Amiga PS's has this.
Indeed.
> So go find a C128's PS, and cut the cord off a regular C64's PS, and
> solder it inside the C128's PS, Hell I have one that has both cords
> attached, but make sure to only run one computer at a time, as you
> might overload it trying to run two computers.
>
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| Re: 1764 REU Power Supply Issue [message #186007 is a reply to message #185768] |
Wed, 14 November 2007 22:37 |
ramswell
Messages: 1808
Registered: January 2012
Karma: 0
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Senior Member |
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On Nov 11, 1:56 pm, "John Degnan" <scaler...@comcast.net> wrote:
> Just read up on some info about the 1764 REU... how one supposedly needs an
> upgraded power supply to use one of them on a C=64. Is this true? Can
> anyone elaborate?
>
> Thanks in advance.
>
> John Degnan
> Scaler...@comcast.net
> The burden of proof of whether or not there is a God is not on the Believer,
> it is on the UNbeliever...
> For the Believer doesn't have hell to pay if wrong!
Theres a couple on ebay for $6.00 EACH (I believe). If you can get
one of those, I can change the plug for you....
Charles
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