Flower Electronics Little Boy Blue & Jealous Heart Modular Synthesizers

Note: Auction links are affiliate links for which the site may be compensated.

Little Boy Blue via this auction.

"Battery powered modular synthesizer that uses banana jack patch cords. Has a 1/4 input for Guitar, Bass, Microphone or other instruments. Infinitely deep as you create your own sounds by connecting patch cables, this synthesizer uses banana jacks which easily allow the signal to be "multed" e.g. you can send one jack to multiple different jacks by stacking the jacks upon one another. This particular LBB has been modified with a banana jack ground plug on the side, allowing for the ability to interfacing with other banana jack modular synthesizers. It also comes with a some banana jack cables to get you started. Best of all it's battery powered which allows you to take it anywhere, you can use it as a sound generator or use it like a guitar pedal, you can also play it by singing through it using a microphone and routing your voice to the envelope follower.

Features:
2 voltage controlled ramp (sawtooth) oscillators
1/4" input with variable gain
envelope follower with optional inverter
2 channel mixer
intermodulating output stage
powder-coated aluminum case
runs on single 9V battery [NOT INCLUDED]
power automatically disconnected when output cable is unplugged"

Jealous Heart via this auction.
"The Jealous Heart is a battery-powered mini-modular synthesizer, powered by a single 9v battery. Disconnecting the output cable shuts off the power. Instruments are supplied with a set of banana cables for patching.

Features:
voltage controlled low frequency oscillator (LFO)
asymmetrical multimode filter (low pass/bandpass/high pass)
1/4" input with variable gain
white and dark noise
two audio inputs, one with -/+ attenuator
two filter cutoff voltage control inputs, one with -/+ attenuator
powder-coated aluminum case"