The Hudson Electronics Broadcast is a great little pedal - while now overshadowed by the Dual Broadcast, which has the high and low gain settings on a foot switch with individual level controls, it's essentially the same under the hood.  

I never thought a lo-cut pot would be so useful until trying this pedal.  It has a decent range to it, from clean through to near fuzz.  It can get quite nasty too with the lo-cut.

This runs at 24v, so you will need to build a seperate charge pump, unless you have 18v or 24v outlets on your pedal power supply (which is what I do).   Otherwise you can always run it at 9v.  It works, it's just not as dynamic - and maybe sounds a little flat by comparison to running at 24v.

HUDSON ELECTRONICS BROADCAST - POINT TO POINT LAYOUT

Note:  If you use a different isolation transformer, you may need to make adjustments to the 15k / 33k resistors before the transformer.  The resistors and one half of the transformer form a RL high pass filter - I had this issue and could not for the life of me work out what was happening until someone more experienced than I pointed this out.  I couldn't work out why I had a full range signal coming from Q2 and the coupling cap, but it disappeared at the transformer. 

HUDSON ELECTRONICS BROADCAST - CIRCUITLAB SIMULATION

Follow the link to Circuit Lab to play with a simulation of the Broadcast - at least until they lock you out and ask for a subscription.  

https://www.circuitlab.com/circuit/43q3t2mjg3ev/hudson-electronics-broadcast/