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Sure. 63 volts is reasonably safe and it probably had less than thatI salvaged some boards from a Yamaho radio. HTR - 5460 260 watts
One boards has some 63V 12,000 uF caps.
No voltage shows on both AC and DC scale.
I also got a whopper transformer that weighs 9 lbs.
On Mon, 27 May 2019 14:46:35 -0700 (PDT), AK
scientist77017@gmail.com> wrote:
I salvaged some boards from a Yamaho radio. HTR - 5460 260 watts
One boards has some 63V 12,000 uF caps.
No voltage shows on both AC and DC scale.
Sure. 63 volts is reasonably safe and it probably had less than that
in use.
Something like a microwave oven capacitor can be deadly (they mostly
have bleeder resistors built in just so they self-discharge and
become safe - but don't take that for granted)
You should never find AC on a cap unless it is in some operating
circuit.
Is it safe to desolder?
yes
I also got a whopper transformer that weighs 9 lbs.
Be safe with it. Do you have any idea what it was used for? or are
the specs printed on the outside?
There are specs on the cap - right on the side of the cap in theOn Monday, May 27, 2019 at 5:16:12 PM UTC-5, default wrote:
On Mon, 27 May 2019 14:46:35 -0700 (PDT), AK
scientist77017@gmail.com> wrote:
I salvaged some boards from a Yamaho radio. HTR - 5460 260 watts
One boards has some 63V 12,000 uF caps.
No voltage shows on both AC and DC scale.
Sure. 63 volts is reasonably safe and it probably had less than that
in use.
Something like a microwave oven capacitor can be deadly (they mostly
have bleeder resistors built in just so they self-discharge and
become safe - but don't take that for granted)
You should never find AC on a cap unless it is in some operating
circuit.
Is it safe to desolder?
yes
I also got a whopper transformer that weighs 9 lbs.
Be safe with it. Do you have any idea what it was used for? or are
the specs printed on the outside?
There are no specs on the cap.
https://www.dropbox.com/s/9v7q0uu74w3ozuc/12000_Audio_Capacitor.jpg?dl=0
That white connector at top left is the input cord.
Next to it are holders for one 2 amp and one 8 amp fuse.
There is also a 10 inch heat sink for a lot of transistors.
I guess they generate a lot of heat.
Andy
On Mon, 27 May 2019 15:28:45 -0700 (PDT), AK
scientist77017@gmail.com> wrote:
On Monday, May 27, 2019 at 5:16:12 PM UTC-5, default wrote:
On Mon, 27 May 2019 14:46:35 -0700 (PDT), AK
scientist77017@gmail.com> wrote:
I salvaged some boards from a Yamaho radio. HTR - 5460 260 watts
One boards has some 63V 12,000 uF caps.
No voltage shows on both AC and DC scale.
Sure. 63 volts is reasonably safe and it probably had less than that
in use.
Something like a microwave oven capacitor can be deadly (they mostly
have bleeder resistors built in just so they self-discharge and
become safe - but don't take that for granted)
You should never find AC on a cap unless it is in some operating
circuit.
Is it safe to desolder?
yes
I also got a whopper transformer that weighs 9 lbs.
Be safe with it. Do you have any idea what it was used for? or are
the specs printed on the outside?
There are no specs on the cap.
There are specs on the cap - right on the side of the cap in the
picture 12,000 uf 63 V. I was more concerned that you stay safe with
this "whopper transformer that weighs 9 lbs."
https://www.dropbox.com/s/9v7q0uu74w3ozuc/12000_Audio_Capacitor.jpg?dl=0
That white connector at top left is the input cord.
Next to it are holders for one 2 amp and one 8 amp fuse.
There is also a 10 inch heat sink for a lot of transistors.
I guess they generate a lot of heat.
Andy
In the background of the pix there's a few other electrolytic caps. If
that is a switching power supply, there may be some high voltage caps
that were charged from the mains 120V line and those could have ~180
volts of DC on them and I'd sure check those before I tried to de
solder them. They would also be rated for at least 200 VDC - or more
if it is a 120/240 type supply.
RMS AC voltage becomes 1.4 X greater than the AC when it is rectified
and filtered because that is the peak value of the sine wave.
There are specs on the cap - right on the side of the cap in the
picture 12,000 uf 63 V. I was more concerned that you stay safe with
this "whopper transformer that weighs 9 lbs."
In article <b3uoee5b7knj2najh2vfr76umn0qbvd54a@4ax.com>,
default@defaulter.net says...
There are specs on the cap - right on the side of the cap in the
picture 12,000 uf 63 V. I was more concerned that you stay safe with
this "whopper transformer that weighs 9 lbs."
I thought that 'whopper transformer' was about 10 to 20 pounds light as
to what I thought a whopper would be. I have a power supply or two
around here that is about all I can do to lift them. The transformer
alone probably weighs in at 20 pounds. Now for a whopper, it should be
like the ones where I worked. They are about 2 to 3 feet each way for
the small ones and about 5 feet each way for the 'whopper' . They
convert 13,200 votls down to 480 volts at around 300 to 600 amps.