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boatman's 1/72 HMS Tiger C20 build

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  • Tim Marlow
    SMF Supporters
    • Apr 2018
    • 18932
    • Tim
    • Somerset UK

    #4561
    No need to be nervous Chris. Your application of logic and talent for the build will see this one through no danger.
    Originally posted by boatman
    HI YES it all worked a treat but ive got to fit on the 12 watt speaker as the 3 watt not powerfull enough only trouble its heavy an wheighs in at 12 ozs but i will fit it in the centre of the deck so no rolling probs but wont really know till she's on the wet stuff but tommow i'll be fittin in the spks into the deck so gonna be busy
    ATB
    Chrisb
    Is that the right way to go Chris? Are these speakers active, powered by their own amplifier, or passive, powered by an external amplifier? if they are active then you are doing the right thing, but if they are passive, then possibly not. As I understand it, wattage in a passive speaker isn’t the volume it can put out, it is just the maximum power it will handle. A passive speaker will need a more powerful amplifier to sound louder.

    In HiFi, the statistic that matters is the efficiency (usually a percentage) of the speaker. A higher efficiency means the speaker turns more of the operating power into noise. In two speakers of identical efficiency 30 watts is twice as loud as 3 watts, by the way.

    Another option is to fit the 3 watt into a box and then fit the box into the ship. A bit like a music loudspeaker. That way, all the noise is projected to the front of the speaker, focussing the output and increasing the perceived noise it makes.

    Comment

    • boatman
      SMF Supporters
      • Nov 2018
      • 14498
      • christopher
      • NORFOLK UK

      #4562
      Originally posted by Tim Marlow
      No need to be nervous Chris. Your application of logic and talent for the build will see this one through no danger.

      Is that the right way to go Chris? Are these speakers active, powered by their own amplifier, or passive, powered by an external amplifier? if they are active then you are doing the right thing, but if they are passive, then possibly not. As I understand it, wattage in a passive speaker isn’t the volume it can put out, it is just the maximum power it will handle. A passive speaker will need a more powerful amplifier to sound louder.

      In HiFi, the statistic that matters is the efficiency (usually a percentage) of the speaker. A higher efficiency means the speaker turns more of the operating power into noise. In two speakers of identical efficiency 30 watts is twice as loud as 3 watts, by the way.

      Another option is to fit the 3 watt into a box and then fit the box into the ship. A bit like a music loudspeaker. That way, all the noise is projected to the front of the speaker, focussing the output and increasing the perceived noise it makes.
      WELL Tim all i can say is that the gent who built the unit said there is an ampliflyer in the gun unit that will up the power of the spk an im very happy with how it sound an it will be better when built into a spk box to ampifyi the sound
      chrisb

      Comment

      • adt70hk
        SMF Supporters
        • Sep 2019
        • 10433

        #4563
        Originally posted by boatman
        an well ive got now just two wires to wire in the bow section an they are pos an neg to take power to the stern section for the shipfloodlites so wireing nearly done in the bow half horay lol[ATTACH=CONFIG]n1187595[/ATTACH][ATTACH=CONFIG]n1187596[/ATTACH]
        Chris

        Firstly apologies for not keeping up with this, work has been very busy. As always simply amazing what is needed internally for something like this to work.

        Keep it up!!

        ATB

        Andrew

        Comment

        • boatman
          SMF Supporters
          • Nov 2018
          • 14498
          • christopher
          • NORFOLK UK

          #4564
          Originally posted by adt70hk
          Chris

          Firstly apologies for not keeping up with this, work has been very busy. As always simply amazing what is needed internally for something like this to work.

          Keep it up!!

          ATB

          Andrew
          HI Andrew no need to apologies as you do have a look in now an again thank you an yes all this wireing is needed if you want what i have workin an i may have gone OTT but im happy that everything works so far but wheather it will all work when takin to pond is another matter as she is in for a rough ride what with all the bad rds about here an them bloomin humps as something like a wire or such could jolt lose an then the probs start but will see an worry about it at the time
          ATB to you Sir
          chrisb

          Comment

          • boatman
            SMF Supporters
            • Nov 2018
            • 14498
            • christopher
            • NORFOLK UK

            #4565
            HI GUYS well a bit more done on this gun fire unit an the main 12 watt spk bein fitted in in the deck S/S HERE just fitted it for size to see if it will go in ok Click image for larger version

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            Comment

            • boatman
              SMF Supporters
              • Nov 2018
              • 14498
              • christopher
              • NORFOLK UK

              #4566
              AN YES it will fit so ive started to build a spk sound box to get the maximim bangs Click image for larger version

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              Comment

              • boatman
                SMF Supporters
                • Nov 2018
                • 14498
                • christopher
                • NORFOLK UK

                #4567
                an bottom of the box built in but the spk can be removed an there is also the whooper sound unit an spk as well Click image for larger version

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                Comment

                • boatman
                  SMF Supporters
                  • Nov 2018
                  • 14498
                  • christopher
                  • NORFOLK UK

                  #4568
                  an top view of both spk just got hope they are not to heavy Click image for larger version

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                  Comment

                  • scottie3158
                    SMF Supporters
                    • Apr 2018
                    • 14221
                    • Paul
                    • Holbeach

                    #4569
                    This build has so much going on mate. Is it still going to float

                    Comment

                    • boatman
                      SMF Supporters
                      • Nov 2018
                      • 14498
                      • christopher
                      • NORFOLK UK

                      #4570
                      an now covered with the spk grill Click image for larger version

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                      Comment

                      • boatman
                        SMF Supporters
                        • Nov 2018
                        • 14498
                        • christopher
                        • NORFOLK UK

                        #4571
                        Originally posted by scottie3158
                        This build has so much going on mate. Is it still going to float
                        HI Scottie well it could be a titanic but ive now picked up the rear end section an i can just lift it so yes its possibe but the gun fire unit wont be any good without the spker will it an its just as well the gun unit is fairly light which will be fitted in tomorrow an then its should all work but the big guns only as the small will train an elevate only

                        Comment

                        • boatman
                          SMF Supporters
                          • Nov 2018
                          • 14498
                          • christopher
                          • NORFOLK UK

                          #4572
                          an side view an tomrrow the big funnell an fan unit will be fitted back on if the gun unit is all ok an yes all this build is headdin towards the finish line an with this big sound box it should bang good
                          chrisb Click image for larger version

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                          Comment

                          • scottie3158
                            SMF Supporters
                            • Apr 2018
                            • 14221
                            • Paul
                            • Holbeach

                            #4573
                            Originally posted by boatman
                            HI Scottie well it could be a titanic but ive now picked up the rear end section an i can just lift it so yes its possibe but the gun fire unit wont be any good without the spker will it an its just as well the gun unit is fairly light which will be fitted in tomorrow an then its should all work but the big guns only as the small will train an elevate only
                            I have every faith in you mate.

                            Comment

                            • boatman
                              SMF Supporters
                              • Nov 2018
                              • 14498
                              • christopher
                              • NORFOLK UK

                              #4574
                              Originally posted by scottie3158
                              I have every faith in you mate.
                              JUST as well you have Scottie an thank you but im gettin a bit worried on how havey she is but may be needed to get her down to her water line but if she is to heavy ive always got the option of removein them keel wheights as they just bolt on so there is always a way out
                              ATB
                              CHRISB

                              Comment

                              • boatman
                                SMF Supporters
                                • Nov 2018
                                • 14498
                                • christopher
                                • NORFOLK UK

                                #4575
                                HI ALL
                                WELL now for a big update an plenty of pics
                                an firstly the gun unit now fitted in in the stern section under the second funnel an it now all wired up Click image for larger version

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