[Boatanchors] Banana Plug Question

[Chuck McGregor]

Bry-
I believe you are talking about a 30 Amp power supply.  I have had problems
with banana plugs at just 10 Amps DC current. I try to avoid using them
above 5 Amps.  Remember the power, dissipated as heat in the plug and
jack, = I-squared x R !  At 30 amps, tenths of an ohm become very
significant.  The wires connected to the plugs need to be appropriate for
the current, too.

73
Chuck K7MCG

On Sun, Aug 26, 2018 at 5:15 AM Bry Carling <AF4K at hotmail.com> wrote:

> Thank you but that is not going to work. These PSU terminals need a much
> larger diameter banana plug.
>
> Best regards - Bry Carling, AF4K
>
>
>
>
>
> On Aug 26, 2018, at 7:25 AM, Rob Atkinson <ranchorobbo at gmail.com<mailto:
> ranchorobbo at gmail.com>> wrote:
>
> Try using an Xacto knife to bend out the sides of the plugs.  Slip the
> tip of the knife blade under each of the four sides of the plug and
> use it to pull them out a bit.  Then the plug may grip the jack
> better.
> There are different sizes of banana plugs but if you have the wrong
> size the plug won't come close to fitting.
>
> 73
>
> Rob
> K5UJ
> On Sat, Aug 25, 2018 at 10:01 PM Bry Carling <AF4K at hotmail.com<mailto:
> AF4K at hotmail.com>> wrote:
>
> In setting up an old Icom 745, I find that the banana plugs (new) that I
> bought on ePay are a VERY loose fit inot the binding post terminals on the
> back of my Jetstream 30 A power supply.
> Does it sound like I got the wrong kind of banana plugs? These are cheapy
> red and black plastic plugs with gold plated hardware.
> I never had any idea that there was more than one standard diameter for
> those springy pins.>
> Any insights will be appreciated!
>
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