Rather than making new holes or installing new fittings, would anyone know what, if any, instrument systems are compatible with the Stowe transducer housings?
Thank you for asking this question! We have Dataline instruments as well, and while the depthsounder still works, the log packed up some time ago. Hence I would also be interested in finding out what other instruments are compatible with the Stowe log transducer.
There's a seller on eBay currently offering "Buy it now" deals on "new" (ex-display) Dataline instruments for £50 each plus postage. See eBay item 230039897522.
As the transducers are a small part of the cost of a new set up and in view of their age ( if you were changing your brake discs would you use the old pads?) I would reccomend that you bite the bullet and remove the old transducers and replace with new. You are unlikley to find a size for size fit, I couldn't but then I wanted to use Raymarine anyway. The method I used was to use a hole cutter that was a tight fit in the existing hole 11/8 I think then using a threaded bar 3/8 Whitworth(depends on the cutter ) as a mandrel slot an other cutter of the size of the new hole required over the first cetter using a couple of penny washers to space them. You can then use the first cutter as a centre for cutting the new hole and the bar to hold them in the drill. You may end up destroying the old transducers in getting them out but they are unlkley to be of use. PM me if you need more info or clarification. If you insist on using the old transducers I think Simrad IS15 are compatable but the wiring is coded diferently again I believe AW at Gosport could advise you if you buy the instruments from him, when I was enquiring they were considerably more expensive than elseware.
AW Marine can supply new ones. They fit in the existing holes and, although the cables are not eactly the same (at least in the case of the Depth), they are easy to connect to the Databox.
AW can supply the original size transducers, or overdrill the holes to suit the more modern 2" transducers and upgrade your instruments to more modern ones.