* It is currently sold without warranty for self-made amplifiers. It is a 2CH vacuum tube preamp using WE396A. It gives out the unique warmth and soft tone that vacuum tubes possess. The appearance has a feeling of use such as dullness. (Morning Tomoho)
Maintenance information: 2021.12.14 operation confirmed
Accessories: none
Main specifications: Vacuum tube used WE396A Size W300 × H100 × D232 mm Weight 2.3kg (actual measurement)
The price has been reduced! 2022/5/6 Sales price 35,000 yen E80CC and E80F are used for vacuum tubes, and TANGO's N-10 and TYPE112 are used for transformers. The sound is relatively high resolution. There is a slight jerk in volume. Also, internal wiring is not connected to the AUX2 terminal. The appearance has a feeling of use such as dullness. (Nobuyuki Takahashi)
Maintenance information: 2022.5.6 operation confirmed
Accessories: None
Main specifications: TANGO N-10 112L10HI120MA used vacuum tube TUNGSRAM E80CC × 2 SIEMENS E80F × 2 W370 × D240 × H154mm 5.2kg
Koreeda's control amplifier published in Kingdom of Tubes Vol.19. A product that omits tone control and narrows down the functions. The volume can be adjusted in detail using a large 41-contact P type attenuator made by Tokyo Hikone. The sound is clear and clear with a sense of speed. The exterior is dull and some lettering has disappeared (Tamura Eiji)
Maintenance information: 2023.8.27 Operation confirmed (bubble noise comes out when VOL is turned, but the specifications are due to the characteristics of Tokyo Hikone attenuators)
Accessories: power cable
Main Specifications: 4 Inputs, 2 Outputs, W360 x H140 x D245mm, Weight 6.9 kg
Disposal prices have been reduced. Member discounts do not apply. 2023/3/22 sales price 148,000 yen. ※There is a slight sound even when the right channel or voll is narrowed down the most, but this is the current situation. Maintained! Direct tube 3A5 control amplifier designed by Mr. Atsushi Arata, who is familiar with the tube kingdom. It seems that it was used in the audition reference preamp for the Gukyu Kingdom magazine. Due to the nature of the vacuum tubes used, they are easily affected by external vibrations, so we recommend installing them in places where there is little vibration. There is a feeling of use such as appearance, dullness, small scratches, etc. (Kobayashi Hitoshi)
Maintenance information: 2023.3.22 maintained (right channel vacuum tube replacement, anti-vibration material removal switch, looseness, tightening, nut replacement, RCA jack, cleaning, sound check for each input and output.)
Accessories: power cable
Main specifications: 3 input lines W430 x H80 x D230 mm 6.5 kg (actual measurement)
We have cut the price! 2021/10/24 Sales price 128,000 yen maintained! A tube control amplifier from Audio Specialty that is not often in stock. The glossy and transparent sound quality will not get tired even if you listen for a long time. The appearance has a feeling of use such as small scratches, dullness, etc. * There are several screws that stop the bottom plate. (Hiroki Yamato)
Maintenance information: 2021.10.24 Maintained (circuit correction, voltage check, input/output waveform confirmation, sound output test)
Accessories: none
Main specifications: 2 vacuum tubes used GE/6072 CG Conn/12AU7A 2 pieces size 465 × 170 × 308 mm (actual measurement)
Maintained! Vacuum tube preamp equipped with a CR type equalizer. Carefully designed using an all-stage non-feedback phono circuit. It is characterized by high clarity in the midrange, and the good separation of sounds leaves an impression on me. The surface is plated in silver. The exterior has oxidation, dullness, and small scratches (Satoshi Yonejima)
Maintenance information: 2023.3.31 Maintained (there is a level difference of about 35 dB in OUT1/2. There is a high resistance between the terminals, so I fixed it. Since the low filter circuit is disconnected, the capacitor addition circuit has been corrected. Vacuum tube socket replacement. Additional solder for each part. foot mount (Check the operation of each input/output)
Accessories: power cord
Main specifications: Input: PHONO ✕ 1, CD ✕ 1, AUX ✕ 1, Radio ✕ 1 Vacuum tube: 12AT7/ECC81 ✕ 6 W430 × D300 × H166 mm Weight approx. 6 kg
Open anniversary sale of listening room of Akihabara shop. Discounted. Previous price:120,000. maintenance completed in Apr.2006. 12AX7×5 Looks like Model 7.
A small control amplifier for the Sanei Denpa vacuum tube amplifier kit Aralgand series line. Use an output transformer to easily drive a power amplifier. There is a REC OUT terminal (Murakoshi Yoichi)
Maintenance information: 2022.12.27 sound output confirmed
Accessories: power cord
Main specifications: Vacuum tube used ECC82 × 4 input 4 systems W290 × H160 × D180 mm 4.3 kg