AWA: Model PA1005, 12w Valve PA Amplifier

AWA PA1005 1 66984322d66f

Another AWA valve PA amplifier from the PA100X series, from the late sixties.  Very utilitarian looking, and very sturdy.  It’s a little bit tight in the chassis – not much room to work in there. AWA PA1005 PA AMPLIFIER Standard mic, PU (record player) and tone controls.  Bass cut control on the rear, which is … Read more

AWA: Model PA-806, 5w Valve PA Amplifier

AWA PA806 front 777a4b70b4f0

Such an awesome looking little amp from 1954.  Photos from an online listing, I am yet to track one down in person. For a simple single-ended 6V6 based amp, it’s an interesting circuit. AWA MODEL PA-806 PA AMPLIFIER Standard inputs and controls for a small Australian PA amp from AWA.  Inputs for a mic, turntable … Read more

AWA: Model PA872, 20w Valve PA Amplifier (Serial Number 94)

AWA PA 872 front 2 725187ccd283

I posted another AWA PA872 a while back, but realised I never actually shared this one.  It had been sitting on the shelf for months – one of those projects that was nearly there, but never quite finished.  I finally got around to wrapping it up this weekend. This looks to be an earlier unit, although … Read more

CUNNINGHAM AMPS: Zonk / MKI

Screenshot 2026 03 20 141805 39088c51db1f

I came across a series of photos of this build on the PedalPCB forum, and there seemed to be a bit of confusion around the schematic.  Thought it was worth documenting some of the observed values here for reference. The board shown below is from the wedge enclosure.  There’s also a more pedalboard friendly version, … Read more

BE: MKI Tone Bender – Shorty

MKI shorty v1 706dbba2b94b

Yes, it’s another MKI.   I designed this layout based on a Zonk to fit a specific enclosure width.  So nothing remarkable, just one for me to use later. MKI TONE BENDER – SHORTY It’s missing the 33k resistor that normally sits across the 50k pot, cause I like to use an A25k instead.   I sometimes … Read more