Posted by
Aug 17, 2021

Portland’s Blammo! Electronics dropped a new, Dallas Rangemaster treble boost clone called Zap Master consisting of one knob (Level) and a 3-way toggle switch that adjusts the amount of bass frequencies.

Designed to sound and look like the original unit, the Zap Master’s circuit sports upgrades that make it quieter and less problematic to daisy chain with other pedals. The Output is also greater than the original, allowing players more flexibility in pushing their amps.

Here are the first videos of the Blammo! Electronics Zap Master.

The ZAP Master is the BLAMMO! version of the classic Dallas Rangemaster treble boost circuit housed in a pedalboard friendly enclosure with top mounted jacks. Designed to sound and look like the original with a few modern upgrades.

First off, we add a robust power filtering section with a reverse polarity protection diode (helps guard the main circuit if an incorrect power supply is accidently used) plus metal film resistors to lower the noise floor and clean up some of the excess hiss and hum. Next, we incorporate more tonal flexibility by adding a 3-way input cap switch that lets you choose between the stock value of 5nf or two additional mod values that let more bass into the audio path. We also swapped out the original PNP style with an NPN type to make powering and daisy chaining with other pedals simple and easy. Lastly, we bump up the output volume to make pushing clean tube amps into natural overdrive or kicking wooley fuzz pedals in the rear a bit easier.

– True Bypass

– NOS MP38a germanium transistor

– Panasonic film caps
– Hand screen printed enclosure

– Top mounted jacks

– Yellow LED

– Accepts the standard 2.1mm center negative power supply (Boss style)