&run_pars
  cvsid='$Id$',
  nt=51, it1=10, cdt=0.4, isave=20, itorder=3
  dsnap=20., dvid=20., 
  dspec=5., ou_spec=T, ab_spec=T
  lpencil_check=T
/
&eos_run_pars
/
&hydro_run_pars
  lforcing_cont_uu=T
/
&density_run_pars
/
&forcing_run_pars
  lforcing_cont=T, ampl_ff=1e-4, k1_ff=1.
/
&magnetic_run_pars
  b_ext=.0,.1,.0
  eta=1e-1
  !bthresh_per_brms=2.8
/
&viscosity_run_pars
  nu=1e-1
/