New battery keeps going flat

[Shropshiremoggie]

Is your new jelly mould Peat in colour ? I have a 1970 two door Peat . Fairly unusual --I think !

[myoldjalopy]

Oh dear. What a pain. So.......new battery, new dynamo and new control box! Assuming they are all good, the next thing would be to check for poor connections in the associated wiring - sometimes elusive!
Try loosening the dynamo bolts and removing the fan belt. Then open the control box and, with ignition on, press down the cut-out contact (i.e. the right hand of the two contacts as you face the car). The dynamo should run briskly as a motor. If it does, then it is OK and you can look elsewhere.
It may be worth checking your fan belt tightness - may have slackened since you fitted the dynamo??

[surfergirl]

Thanks will try looking at the dyno tomorrow if it stops raining! Be great if it was the fan belt.
The new saloon is rose taupe, bit of a winter project it was too good to miss in the local paper, have been looking for a traveller again, but the prices!!