Scott at Electrodrone made us this amazing device that can function as either a 4watt amp head or a tube preamp/overdrive. The speaker out jack is switching, so when no speaker is connected, a resistive load goes into circuit allowing it to function as an overdrive box. Much thanks to Scott for adding our request at very late stage in the design: a relay-based bypass footswitch circuit. This is an original design but Scott tip his hat to the late Gar Gillies (Garnet), whose Herzog design was an inspiration .

As with the ZB50, he named it after a motorcycle, in this case the British Ariel Square Four:

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Our friend Scott Hodgson (Electrodrone) designed and built this very nice 50 watt high-gain amp for us in 2006.

He named it after this freaky 80s Honda motorcycle:

Tube complement
2x KT77 outputs/12AX7 preamp/12AU7 phase splitter
Features of note
Matching 2×12 cabinet with old Altec 4178H alnico speakers
Half volume switch (built-in attenuator)
switchable midrange cut
Construction
Here’s the chassis during its final stages of testing:

Scott’s father is an ace carpenter so we hired him to build the head and speaker cabinet enclosures. He used baltic birch.The finger joints fits together perfectly.


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Along with the Otari MX 70, this is one of our main multitrack machines. We modified the amplifier cards to allow correct biasing for high-output tape.
Our favourite feature: LED readout on the vari-speed.


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This is a really handy machine to have around a studio.
Some features:
- Ajustable record bias
- Balanced inputs and outputs
- Third head for record monitoring (or tape delay)
- Vari-speed
- Dolby B and C
- A built-in oscillator
- LED readout with programmable cue points


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This is our second string mixdown deck. While it doesn’t sound quite as good as the Studer B67, it’s been a sass-free workhorse. We bought it off our friends in the band Reversing Falls.
It has a few handy features, including:
- Built in oscillator for speedier alignments
- External NAB/CCIR EQ Switches
- 3-way Fluxivity level switch
If you have this machine and you’re missing the manual, you can download it here.


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