This is a cool 80s-era Japan made phaser. It's driven by a JV1000D bucket brigade analog chip. There's some murmurs that these were made by Boss and are basically the same as a PH-1R. It certainly delivers that sound: warm, swirling juicy goodness.

Model: Amdek PHK-100 Phaser
Made: Japan, 1985 approx
Serial: none
Type: phaser
Power Input: standard 9v DC centre-negative via jack adapter, 9v battery (supply not included)
Accessories: none

Condition notes: used, no major marks. Tested and fully functional.
Overall: very good condition (8/10)