From: redwood on
"Andrew Gabriel" <andrew(a)cucumber.demon.co.uk> wrote in message
> S4VB is a 4A bridge rectifier, and the 10 means 100V working.
>
> A 10A or higher (50V or higher) bridge rectifier will be fine.
> (A 4A bridge rectifier was obviously inadiquate.)
> I would also get some heat sink compound to smear between the
> new rectifier and the heatsink.

Got the rectifier from my local Maplins and is now fitted. It's twice
the size of the original with bigger spade connectors so had to replace
the ends of the 4 wires. It was a bit confusing knowing which way round
the - wires go as the only markings on the new rectifier only displayed
on one side showing the AC & +. Going round in a clockwise direction,
if the 1st terminal is AC+, the 2nd terminal is DC+, I connected the 3rd
terminal to AC-, and the 4th terminal to DC-

I've not yet tried it connected to a battery but it now powers on
without clicking and connecting a DVM to the croc clips shows around
12.06v or 6.02 on the 6 volt setting. I shall give it a test on a
battery tomorrow.

From: Duncan Wood on
On Sat, 02 Dec 2006 15:20:13 -0000, redwood <help(a)nooos.com> wrote:

> "Andrew Gabriel" <andrew(a)cucumber.demon.co.uk> wrote in message
>> S4VB is a 4A bridge rectifier, and the 10 means 100V working.
>>
>> A 10A or higher (50V or higher) bridge rectifier will be fine.
>> (A 4A bridge rectifier was obviously inadiquate.)
>> I would also get some heat sink compound to smear between the
>> new rectifier and the heatsink.
>
> Got the rectifier from my local Maplins and is now fitted. It's twice
> the size of the original with bigger spade connectors so had to replace
> the ends of the 4 wires. It was a bit confusing knowing which way round
> the - wires go as the only markings on the new rectifier only displayed
> on one side showing the AC & +. Going round in a clockwise direction,
> if the 1st terminal is AC+, the 2nd terminal is DC+, I connected the 3rd
> terminal to AC-, and the 4th terminal to DC-
>

That should be right.

> I've not yet tried it connected to a battery but it now powers on
> without clicking and connecting a DVM to the croc clips shows around
> 12.06v or 6.02 on the 6 volt setting. I shall give it a test on a
> battery tomorrow.

From: Sylvain VAN DER WALDE on

"Duncan Wood" <newsto(a)dmx512.co.uk> wrote in message
news:op.tjxupjhyyuobwl(a)lucy...
> On Sat, 02 Dec 2006 15:20:13 -0000, redwood <help(a)nooos.com> wrote:
>
>> "Andrew Gabriel" <andrew(a)cucumber.demon.co.uk> wrote in message
>>> S4VB is a 4A bridge rectifier, and the 10 means 100V working.
>>>
>>> A 10A or higher (50V or higher) bridge rectifier will be fine.
>>> (A 4A bridge rectifier was obviously inadiquate.)
>>> I would also get some heat sink compound to smear between the
>>> new rectifier and the heatsink.
>>
>> Got the rectifier from my local Maplins and is now fitted. It's twice
>> the size of the original with bigger spade connectors so had to replace
>> the ends of the 4 wires. It was a bit confusing knowing which way round
>> the - wires go as the only markings on the new rectifier only displayed
>> on one side showing the AC & +. Going round in a clockwise direction,
>> if the 1st terminal is AC+, the 2nd terminal is DC+, I connected the 3rd
>> terminal to AC-, and the 4th terminal to DC-
>>
>
> That should be right.
>
>> I've not yet tried it connected to a battery but it now powers on
>> without clicking and connecting a DVM to the croc clips shows around
>> 12.06v or 6.02 on the 6 volt setting. I shall give it a test on a
>> battery tomorrow.
>
Is your meter reasonably accurate?
These voltage readings seem rather low.

Sylvain.


From: redwood on
"Sylvain VAN DER WALDE" <sylvain.vanderwalde(a)which.net> wrote in message
>>> I've not yet tried it connected to a battery but it now powers on
>>> without clicking and connecting a DVM to the croc clips shows around
>>> 12.06v or 6.02 on the 6 volt setting. I shall give it a test on a
>>> battery tomorrow.
>>
> Is your meter reasonably accurate?
> These voltage readings seem rather low.

I think the battery charger voltage increases when connected to a
battery, I will check it out tomorrow. cheers.

From: Ivan on

"redwood" <help(a)nooos.com> wrote in message
news:4tdjuvF13f72iU1(a)mid.individual.net...
> "Andrew Gabriel" <andrew(a)cucumber.demon.co.uk> wrote in message
> > S4VB is a 4A bridge rectifier, and the 10 means 100V working.
> >
> > A 10A or higher (50V or higher) bridge rectifier will be fine.
> > (A 4A bridge rectifier was obviously inadiquate.)
> > I would also get some heat sink compound to smear between the
> > new rectifier and the heatsink.
>
> Got the rectifier from my local Maplins and is now fitted. It's twice
> the size of the original with bigger spade connectors so had to replace
> the ends of the 4 wires. It was a bit confusing knowing which way round
> the - wires go as the only markings on the new rectifier only displayed
> on one side showing the AC & +. Going round in a clockwise direction,
> if the 1st terminal is AC+, the 2nd terminal is DC+, I connected the 3rd
> terminal to AC-, and the 4th terminal to DC-
>
> I've not yet tried it connected to a battery but it now powers on
> without clicking and connecting a DVM to the croc clips shows around
> 12.06v or 6.02 on the 6 volt setting. I shall give it a test on a
> battery tomorrow.
>

Most bridge rectifier are usually marked: ~ ~ (ac in) + - (dc out).