EL34 mono power amplifier from Osaka Duck Denshudo. Great sound quality has been revived by maintenance of the whole body. Made to value sound quality while suppressing output with non-feedback operation and an unusual Class A differential output configuration. You can fully enjoy the real thrill of a tube amplifier. The output is about 8W, so it is recommended for vintage speakers, full range, etc. (Yoichi Murakoshi)
Maintenance information: 2022.7.28 Maintenance (chassis hole processing (2mm in diameter for disassembly and replacement) Parts other than VR, wiring materials all wiring redone with the original, left and right pairs from electrolytic capacitors (Change replacement to block film capacitor, running test.)
Accessories: none
Main specifications: 8W mono use vacuum tube EL34 × 2, 6SJ7, 7591, GZ34 W400 × H208 × D230 mm 12.2 kg
The price has been reduced! 2022/8/8 selling price 20,000 yen* It is a current sale without warranty for self-made amplifiers. It is a USB and Line 2ch vacuum tube premain amplifier that uses 6P1. The unique warmth and soft tone of vacuum tubes come out. The appearance has a feeling of use such as dullness. (Asaine Tomoho)
Maintenance information: 2022.8.8 operation confirmed
Accessories: none
Main specifications: Size W110 x H233 x D270 mm Weight 5.3 kg (actual measurement) Vacuum tube used 6P1 x 2 6H23P x 1
Significantly lower price (2020/11/16 selling price 80,000 yen) ※ current selling product self-made vacuum tube amplifier (without vacuum tube) TANGO FW-50-5 pair, MS-330D, MS-330D, MC-3-350D bottom plate No Please use it to pick up the base and parts of your own amplifier (Yosuke Kojima)
Maintenance information: 2020.11.15 Operation unchecked
Accessories: none
Main specifications: W400 × H175 × D312mm 11.7kg