* THE FORUM FOR ALL THOSE INTERESTED IN BUILDING AND OPERATING MODEL SUBMARINES *



Join the AMS - Registered Forum users can become members of the AMS and it's free ...... To join register on the forum first then follow the forum link to our membership form which is on our website


For further details of any events shown here also see the "Shows and Events" section on the forum

Let us know of your plans for 2017 and we will promote them on this Forum

.

.

,Model Boat Convention, Haydock Park, 26,27 August

. .

Barrow in Furness MBC Regatta, and Sub Day, Cumbria, 3rd Sept 2017

Chantry MBC, Bluewater Shopping Centre, Kent, 3rd Sept

Bournville MBC, West Midlands, 17th Sept

Edinburgh MBC Warship & Sub Day, 24th Sept

Who is online?

In total there are 2 users online :: 0 Registered, 0 Hidden and 2 Guests

None


Most users ever online was 37 on Sun Mar 13, 2011 11:27 am

Latest topics

» Model Boat Convention, Haydock Park, 26,27 August
Mon Aug 14, 2017 9:27 am by david f

» Frequency checker
Wed Aug 09, 2017 9:17 pm by hooper

» IJN Type KD3 fleet submarine or similar
Sat Aug 05, 2017 8:13 pm by offroad

» Norwich Model Sub Weekend 2017 - Norwich MBC
Sat Aug 05, 2017 9:33 am by david f

» British R class drawings
Thu Jul 20, 2017 3:13 am by TXGR

» British O,E and L class drawings
Thu Jul 20, 2017 3:00 am by TXGR

» Sheerline type 7c submarine. FOR SALE.
Tue Jul 11, 2017 9:43 am by david f

» Prop shaft seals
Mon Jul 03, 2017 9:44 am by david f

» Resurgam, Nordenfelts II & IV - George Garrett's works.
Sat Jun 24, 2017 2:04 pm by david f

Statistics

Our users have posted a total of 10322 messages in 1670 subjects

We have 732 registered users

The newest registered user is sclark


    Graupner X-408 Transmitter

    Share

    Kevin D
    AMS Forum Administrator

    Posts : 129
    Join date : 2014-04-24
    Age : 55
    Location : Norwich

    Graupner X-408 Transmitter

    Post  Kevin D on Wed Aug 20, 2014 10:53 pm

    I have purchased two NOS Graupner X-408 40mhz 4 channel transmitters without receivers. Does anyone know what make receivers are compatible with these, other than Graupner. I have tried my Futaba receiver but that does not work.

    Hoping these aren't lame ducks !!!
    avatar
    david f
    AMS Treasurer

    Posts : 1883
    Join date : 2010-11-10
    Age : 67
    Location : Cumbria

    Re: Graupner X-408 Transmitter

    Post  david f on Tue Aug 26, 2014 12:00 pm

    I have had a look at the (English) instruction manual for these and all the basics look fine, because it is:
    - FM
    -PPM
    -1.5 m seconds range for the servos.

    If your Futaba receiver had the right crystals you should have got some response.

    Anyone any ideas?

    David


    Last edited by david f on Wed Aug 27, 2014 12:09 pm; edited 1 time in total

    Kevin D
    AMS Forum Administrator

    Posts : 129
    Join date : 2014-04-24
    Age : 55
    Location : Norwich

    Re: Graupner X-408 Transmitter

    Post  Kevin D on Tue Aug 26, 2014 12:34 pm

    Thanks David, I hadn't really thought about crystal compatibility, I had 40mhz Futaba compatible crystals in both TX and RX.

    I haven't generally experienced any issues with mix and match on my 27mhz gear which I use for fast electric boats, so I didn't really think about it.

    Could that be my problem?
    avatar
    david f
    AMS Treasurer

    Posts : 1883
    Join date : 2010-11-10
    Age : 67
    Location : Cumbria

    Re: Graupner X-408 Transmitter

    Post  david f on Wed Aug 27, 2014 12:12 pm

    Crystals are a bit of a black art but I thought Futaba would be some sort of standard.

    You've presumably got the right type in the receivers (Dual or Single conversion.)

    Anyone any experience of Graupner and crystals?

    David

    Sponsored content

    Re: Graupner X-408 Transmitter

    Post  Sponsored content


      Current date/time is Fri Aug 18, 2017 12:22 am