The input of rx is conjunction of hh, ck, kz, ns (truth = low pulse)
&jq -> rx

&gt -> jq
&vr -> jq
&nl -> jq
&lr -> jq


Counter 1
&hh -> nc, zd, vs, kq, fm | -> gt

%nc -> hj, hh  | <- hh, broadcast
%hj -> lk, hh
%lk -> zd, hh
%zd -> fm      | <- hh
%fm -> kq      | <- hh
%kq -> pp      | <- hh
%pp -> vs, hh
%vs -> bp      | <- hh
%bp -> rv, hh
%rv -> rk, hh
%rk -> hr, hh
%hr ->     hh

111101000111(2) = 3911


Counter 2
&ck -> tf, mr, rg, tp, pc, tg  | -> vr

%tf -> tx, ck  | <- broadcast, ck
%tx -> mr, ck
%mr -> rg      | <- ck
%rg -> tp      | <- ck
%tp -> pc      | <- ck
%pc -> vh      | <- ck
%vh -> tg, ck
%tg -> cc      | <- ck
%cc -> rj, ck
%rj -> sc, ck
%sc -> vb, ck
%vb ->     ck

111101000011(2) = 3907


Counter 3
&kz -> zn, nh, vx, df, zf | -> nl

%zn -> fv, kz  | <- broadcast, kz
%fv -> nh, kz
%nh -> vx      | <- kz
%vx -> df      | <- kz
%df -> gf      | <- kz
%gf -> zf, kz
%zf -> qf      | <- kz
%qf -> tn, kz
%tn -> lt, kz
%lt -> ls, kz
%ls -> hc, kz
%hc ->     kz

111110100011(2) = 4003


Counter 4
&ns -> pb, br, fp, gp, gv, jl | -> lr

%br -> gv, ns  | <- broadcast
%gv -> jl
%jl -> fp
%fp -> rb
%rb -> mf, ns
%mf -> gp, ns
%gp -> pb
%pb -> xv
%xv -> kh, ns
%kh -> jz, ns
%jz -> lj, ns
%lj ->     ns

111100110001(2) = 3889

The broadcast node drives all the counters
broadcaster -> nc, tf, zn, br

Period of rx (same as first activation) is LCM of periods of all counters
LCM = 237878264003759