Portabella MKIII SPECIFICATIONS
OSCILLATOR 1
Range: 1Hz – 10KHz
Outputs: sine/ramp
Modifications: shape control via matrix (sine only)
OSCILLATOR 2
Range: 0.018Hz – 10KHz
Outputs: square/pulse,
Modifications: OSC Sync switch, Hi/Lo range switch, shape control via matrix
OSCILLATOR 3 / LFO
Range: 0.016Hz – >500KHz
Outputs: square/pulse
Modifications: Hi/Lo range switch, shape control via matrix
NOISE GENERATOR
White and Coloured
RANDOM VOLTAGE GENERATOR
Outputs: 2 random voltages V1 & V2 and trigger
VC Mean Rate (via matrix)
VC Selection (socket)
FILTER / OSCILLATOR
A multi-purpose filter and sine oscillator
Range: 20 Hz – 20KHz
Modifications: slew/unslew switch
RING MODULATOR
Transformerless integrated circuit
SPRING REVERB
Decay time: 1.75 – 3.0 sec.
Springs: 3
Voltage control of mix “wet/dry” via matrix.
ENVELOPE GENERATOR
Attack: 2ms – 1 sec
On time 0 – 2.5 sec
Decay: 2.7ms – 18 sec
Repeat/Off: 10ms – 7sec. (max. rate 60Hz)
Trigger: +4V
Modifications: attack/decay time extension, inverter switch
INPUTS
2 x 2.5 VDC (max) 50Kohm) (CV Ins)
2 x 5 mVAC into 600 ohms (Mic. Input)
OUTPUTS
2 x Mono sockets
1 x Headphones
1 x RVG TRIG out (very short spikes up to 10V)
1 x Scope out
INPUT CONTROLS (cv/gate interface)
1 x RVG re-select
1 x CV/ via CH1 pre-calib.1V/oct.
1 x gate socket
DIMENSIONS
474 x 415 x 149mm
WEIGHT
17lb / 8kg
EXT. POWER SUPPLY
18 V/DC 1670 mA 30 W
12V DC BNC lamp connector
ENVELOPE GENERATOR
Attack: 2ms – 1 sec
On time 0 – 2.5 sec
Decay: 2.7ms – 18 sec
Repeat/Off: 10ms – 7sec. (max. rate 60Hz)
Trigger: +4V
Modifications: attack/decay time extension, inverter switch
INPUTS
2 x 2.5 VDC (max) 50Kohm) (CV Ins)
2 x 5 mVAC into 600 ohms (Mic. Input)
OUTPUTS
2 x Mono sockets
1 x Headphones
1 x RVG TRIG out (very short spikes up to 10V)
1 x Scope out
INPUT CONTROLS (cv/gate interface)
1 x RVG re-select
1 x CV/ via CH1 pre-calib.1V/oct.
1 x gate socket
DIMENSIONS
474 x 415 x 149mm
WEIGHT
17lb / 8kg
EXT. POWER SUPPLY
18 V/DC 1670 mA 30 W
12V DC BNC lamp connector
The 20×20 621 Ghielmetti matrix comes with 16 pins and vintage Sealectro look black w/white lines.
We are using Explorer hard cases from the leader in technical case manufacturing.
