Equipped with GEC KT88 x 4! This is an A3700 that has been refreshed by replacing 6 film capacitors and spark killers. Combined with the acclaimed OY transformer, you can enjoy the soft and powerful sound of a vacuum tube. The exterior has line scratches on the top plate and overall dullness (Mizusaki Ryo)
Maintenance information: 2025.12.14 maintained (vacuum tube 6240 deterioration replacement, 2 spark killer deterioration replacements, 6 film capacitors 0.47 μF and other defects and deterioration replacements, vacuum tube sockets and RCA jack caulking repairs*Other operation checked with AC100V (rated output 78W SP: 8Ω))
Accessories: none
Main specifications: 40W+40W vacuum tube KT88×4 6AQ8×2 6240G×2 W400×H127×210mm 17.7 kg
Selling 1 bottle EL34/6CA7 equivalent tube, English tea base lot: ZE Z double gettering measured value 38 (rejected value 30) with replacement box ※The measured values indicate gM values measured with the testing machine TV-7 (Kojima Yosuke)
Accessories: replacement box (GE box)
Pair tube EL34/6CA7 equivalent tube English tea base lot: ZE Z/ZD Z double gettering measurement value 52/46 (rejected value 30) with replacement box ※ pair is judged based on gM values measured by testing machine TV-7 (Kojima Yosuke)
Accessories: Replacement box (Elehamo box)
Pair tube ambient heat beam tube British tea base lot: RC Z/QM Z measured value 72/66 (rejection value 44) with white box There is burn on the tube head ※The pair is determined based on the gM value measured with the test machine TV-7 (Kojima Yosuke)
Accessories: white box
Pair tube ambient heat beam tube English tea base lot: PC 4/QM Z measurement value 68/66 (rejection value 44) with replacement box, getter burnt on the head ※The pair is determined based on the gM value measured by the testing machine TV-7 (Kojima Yosuke)
Accessories: replacement box
Pair tube ambient heat beam tube English tea base measurement value 64/64 (rejected value 44) side getters on one side with white box have been drastically reduced, and the other side is cheap because it makes a crackling noise inside the base.*Pairs are determined based on GM values measured with the TV-7 testing machine (Kojima Yosuke)
Accessories: white box
Pair tube, ambient heat beam tube, British metal tea base, measured value 62/60 (rejected value 44) with original box (there is writing) burnt on the side getter, written on the base, and the printing is disappearing ※The pair is determined based on the gM value measured by the testing machine TV-7 (Kojima Yosuke)
Accessories: original box (with writing)
Special Feature = Vacuum Tube Preamplifier/GEC DA30/MOS FET 1 Stone Power Amplifier/82' Audio Technology of the Year/Player Precision Processing Technology/JBL New Driver 2445J/Summary of 21 Large Aperture W Woofer Models/Published Circuit Diagrams: Technics SU-V7A/HAFLER DH500/S58.3.1 issued. Since the photograph is a sample, the actual item may be broken or there may be markings etc.