Depth sounder - connection.

[doug748]

I want to check and existing transducer against an old "flashing" Echopilot Incastec sounder (bit like the old Seafarer).

The original moulded male plug has been cut off the wire and I am told that it is a simple coaxial male like the sockets on your average TV aerial. Physically the fit looks fine, before I try it on the boat :-

Can anyone confirm this, have you done similar? Did it work?

Thanks.

.

 

[Refueler]

Correct .....

The only item to be careful about .... its ok to shorten cable a few cms to allow a new plug to be fitted - but not more than necessary. The length of cable is part of the 'timing' to determine depth. The Head times the pulse OUT and back again to calculate depth.

 

[Refueler]

Some people think that the old Transducer is the timing unit - its not. Its only the TX / RX item ... the actual timing is in the display head.

 

[doug748]

Good stuff. Another question.

It works off batteries. Should I want to power it from 12 v in: It has a round socket about 10/12mm dia. The central, large, pin is rectangular with a smaller round pin above. Could be a bespoke item, anyone recognise it or even have one of these female plugs going spare?

Can I expect the large pin to be positive? I am not sure how the thing would react to reverse polarity.

 

[Refueler]

Long time since my Seafarer went walkies ..... but I remember that I could power from 9V lantern battery internally or from 12v via cable / plug.

As to the plug ????

 

[andsarkit]

Good stuff. Another question.

It works off batteries. Should I want to power it from 12 v in: It has a round socket about 10/12mm dia. The central, large, pin is rectangular with a smaller round pin above. Could be a bespoke item, anyone recognise it or even have one of these female plugs going spare?

Can I expect the large pin to be positive? I am not sure how the thing would react to reverse polarity.

That will be a DIN speaker plug

DIN plug Round pin is probably positive but I will have a look in my box of old sounders and see if I can confirm.

 

[Refueler]

That will be a DIN speaker plug
View attachment 157888
DIN plug Round pin is probably positive but I will have a look in my box of old sounders and see if I can confirm.

Yep - thats it !!
Any home electrical / music shop should have them ....

Its funny actually ... I wish I could find my old Seafarer ..... its buried somewhere in a box in the barn ...

 

[andsarkit]

Is it a Space Age sounder?
I can't find a manual but found this for a Space Age -

 

[doug748]

I can't see much about them either but I have found these photos:

 

[doug748]

Correct .....

The only item to be careful about .... its ok to shorten cable a few cms to allow a new plug to be fitted - but not more than necessary. The length of cable is part of the 'timing' to determine depth. The Head times the pulse OUT and back again to calculate depth.

Just a bit of feedback. An ordinary co-ax plug of Pound Shop quality did the job and the thing is working fine. As my usual sounder continues to play up, it will be very useful.