※Shipping service. “Fascinating Vacuum Tube Amplifiers: Their History, Design, Production (Volume 1), Reprint Edition” /Over 40 Production Examples/Complete Famous Ball Data/Wireless and Experimental Edition/Supervised by Isamu Asano/1990.4.2 2nd Print Published. The photograph is a sample, so the actual product may be broken, written, etc.
※Shipping service. Characteristics and circuits of 15 famous vacuum tube power amplifier models/genealogy of vacuum tube power amplifier circuits/roundtable discussion talking about famous machines of power amplifies/listening to 7 models of Tama amplifies/Questionnaire to Mr. 8 What is a famous machine for me/ Takesue Kazuma: Memoirs of 30 years of making amplifiers/anthology articles, popular power amplifier production articles/radio engineering companies/1989.12.20 first edition published. The photograph is a sample, so the actual product may be broken, written, etc.
※Shipping service. 10th anniversary commemoration of the first publication · 1st edition = reader visits The appeal of TUBE SOUND/Listen to the supreme WE amplifier 8B+9A/ tubular kit amplifier selected by “sound” /300B single output transformer listen and comparison/2005.11.28 published. The photograph is a sample, so the actual product may be broken, or there may be markings etc.
※Shipping service. Separate volume stereo sound, tube kingdom/special feature = field type unit research/WE16A+555 combination/thorough audition of the latest preamp/putting together a WE91 type kit/published on 2001.11.25. The photo is a sample, so the actual item may be broken, have marks, etc.
※Shipping service. Bessatsu Stereo Sound Tube Kingdom/Special Feature = The Origin of JBL, Listen to 175/375/Thorough Verification of Power Amplifier Capabilities/Latest World Brand Information/2001.2.25 Published. The photograph is a sample, so the actual product may be broken, or there may be markings etc.
※Shipping service. “Audio Vacuum Tube Manual” /Published by Radio Engineering Company/by Ichiki Yoshinori/A revised edition that carefully selects the “All Japan Vacuum Tube Manual” published in Showa 33 for audio applications. S60.7.20 first edition issued. The photograph is a sample, so the actual product may be broken, written, etc.
※Shipping service. Bessatsu Stereo Sound Preservation Edition/ A selection of vacuum tube amplifier masterpieces from yesteryear where you can almost hear “good sounds”! /Macintosh Successive Tube Amps Listening Comparison/Marantz Successive Tube Amps Listening Comparison/Published on 2008/6/30. The photograph is a sample, so the actual product may be broken, written, etc.
Uses 1.0 m pair of RCA cables PSC+ (Perfect Surface Copper Plus) made of copper. Polyethylene air tube insulators are used. The sound is tight throughout the entire area, and the delicate expression is also amazing (Mizushima Itsuro)
Maintenance information: 2024.4.28 continuity confirmed
Accessories: original box
One-piece rectifier tube, fishing rod type filament made in China, incorporates the structure of the original WE274 and is well-built. Measurement value 56 (rejected value 40) with replacement box ※ The measured value shows the GM value measured with the test machine TV-7 (Kojima Yosuke)
Accessories: replacement box
Pair tube 45 Special/38142 compatible ball, direct heat triode, fishing rod type, filament measurement value 120/118 (rejection value 55) with original box ※ The pair was determined based on the GM value measured by the testing machine TV-7 (Kojima Yosuke)
Accessories: original box
Pair tube 45Special compatible spherical triode fishing rod type filament measurement value 100/92 (rejection value 55) *Pairs are judged based on GM values measured by test machine TV-7 (Kojima Yosuke)
Accessories: none
Pair Tube 45Special/38142 Compatible Ball Fishing Rod Type Filament Measurement Value 98/92 (Rejection Value 55) Geta Burns, is a bargain because it has decreased ※The pair is GM measured with the tester TV-7 Judgment is based on the value (Yosuke Kojima)
Accessories: none
Pair tube 45Special compatible spherical triode fishing rod filament measurement value 94/86 (rejection value 55) *Pairs are judged based on GM values measured by test machine TV-7 (Kojima Yosuke)
Accessories: none
The price has been drastically reduced. 2024/1/15 sales price 118,000 yen pair tube 45 special compatible ball straight heat triode fishing rod type filament made in America measurement value 90/86 (rejected value 55) with white box*Pairs are determined based on gM values measured by testing machine TV-7 (Kojima Yosuke)
Accessories: white box
The large triode print sold in Japan has disappeared, but I think it was made by NEC from the structure. Measured IP value: 45 mA (the best standard IP value for this amplifier is 50 mA) with the original box ※ I checked the sound output with the test amplifier and measured the plate current value, and it has been determined that the operation is good (Kojima Yosuke)
Accessories: original box
The price has been drastically reduced. 2024/4/25 sales price 278,000 yen Maintained! A stereo power amplifier limited to 200 units. The careful, natural, and delicate sound that can be heard for a long time, backed by artistic internal wiring, is the true essence of Wesugi amplifiers. Modern speakers also drive quietly and firmly (Yasuhito Koshihama)
Maintenance information: 2024.4.25 Maintained (*confirmed above, lots of dust and dirt* input volume replacement, solder correction, misalignment correction, vacuum tube pin cleaning mold, dirt cleaning, foreign matter removal, bottom plate mounting reversed* bias check output audio check (output approx. 40W confirmed)
Accessories: none
Main specifications: 40W+40W vacuum tube ECC83 x 1 ECC82 x 2 EL34 x 4 W365 x H232 x D310 mm 31 kg
The price has been drastically reduced. 2024/4/24 Sales price 248,000 yen Maintained in 2018. TVA-1 is a famous British vacuum tube power amplifier. Equipped with a sturdy, heavy transformer, this is reflected in sound quality. The sound quality is thick and has good extrusion, and the driving power is off par. You can enjoy the attractive vacuum tube sound with the tenacity of the mid-range and the bright mid-high range. There is dullness appropriate for the model year (Oikawa Tetsuji)
Maintenance information: Maintained on 2018/3/31 (The capacitor was replaced, the looseness of the speaker terminals was increased and tightened, and the installation was corrected. The vacuum tube socket was replaced due to poor contact. The bias current for each output tube has been adjusted. The power supply and block capacitor connections have been corrected. There was poor contact with the input RCA pin terminal, so I replaced it.)
Accessories: none
Main specifications: 70W+70W W457 x H191 x D279 mm 38.1 kg
The disposal price has been reduced! (Member discounts are not applicable) 2024/4/25 sales price 198,000 yen manufacturer maintenance completed! Tubular premain amplifier equipped with 300B. In addition to combining a vacuum tube with a modern design, it is easy to use with easy bias adjustment. Since it can also be used as a power amplifier using the PRE-IN terminal, it is also recommended for those considering separating them in the future. Serial 05050050 (Hiroki Aso)
Maintenance information: 2024.4.25 Maintained (maintenance including restoration of the contact point of the selector polishing volume ※ vacuum tubes can still be used, but they have deteriorated appropriately over time, so please understand that this is a current product)
Accessories: instruction manual copy power cable
Main specifications: maximum output 18W+18W (8Ω) vacuum tube 300B/A grade push-pull input terminal input RCA4 system
(4 rear systems, 1 tape out system) output terminals 6/8/16 ohm, 1 system each, TRIODE original 300B power consumption 220W size 440 x depth 320 x height 200 mm weight 20 kg
Maintained by the manufacturer! It is the origin of Sun Valley and is the most popular 845 single power amplifier kit model. Sister level 211 can also be used. Please enjoy the original appeal of hand-wired tube amplifiers (Murakoshi Yoichi)
Maintenance information: 2024.4.26 manufacturer maintenance (vacuum tube replacement L/R gain adjustment, high pressure wiring glass tube processing, solder part check, re-soldering, wiring routing correction, screw fastening confirmation, tightening, output, gain noise, etc.)
Accessories: instruction manual, power cord
Main specifications: 845/211 single 16W+16W or more (211 is 7.5W+7.5W or more) impedance 8Ω W410 x H240 x D275 mm 15 kg
The price has been drastically reduced. 2024/4/24 sales price 228,000 yen 2023/10 manufacturer maintenance completed! The flagship stereo power amplifier model with a KT120 push-pull configuration by Sun Valley. An output transformer with a bifiler-wound custom-made by Hashimoto Electric is used. It achieves both a wide range of sound that is pleasant to listen to. This is a powerful power amplifier that can make even vintage speakers sound with modern speakers. The exterior is dull. Serial 52JTN2442367 (Kobayashi Hitoshi)
Maintenance information: 2023.10.20 manufacturer maintenance (PT replacement with a brand new product, carrying out energization after returning the remodeled point to a normal state, measurement of voltage of each part and measurement of various characteristics, music playback test)
Accessories: power cord
Main specifications: used vacuum tube KT120 push-pull 55W+55W KT120 x 4 (TUNG-SOL), 12BH7A x 4 (ELECTRO HARMONICS), CV4003 x 2 W400 x H380 x D220 mm 32 kg
※Set of 2 (not treated as a pair since the internal shape is different between the tubes) KT88 compatible balls, Russian metal brown, base code: 0210/0601 measured value 56/50 (rejection theory 44) with original box ※ measured values indicate GM values measured with the TV-7 testing machine (Kojima Yosuke)
Accessories: original box
Maintained! Single stereo power amplifier using 2A3 output tubes. You can enjoy the aftertaste of sound and air unique to vacuum tubes. It expresses vocals and string music in a sweet and glamorous manner. This is a well-built car at an affordable price. The appearance is fine, with no noticeable scratches, etc. (Kobayashi Hitoshi)
Maintenance information: 2024.4.29 maintenance completed (power supply capacitor replacement, RCA jack replacement, cord clamp added to keep unused wire away from heat source, fixed solder defects, vacuum tube pin cleaning, bias check ham balance adjustment, output approx. 4.5 W (current load set to 8 Ω), interior and exterior cleaning)
Accessories: power cable
Main specifications: rated output 3.5W+3.5W vacuum tube 2A3 x 2 6H8C x 2 5U4G x 1 W360 x D210 x H190 mm 16 kg
The price has been drastically reduced. 2024/4/11 sales price 118,000 yen ※It's cheap because it doesn't have a hood. Maintained! Vacuum tube stereo power amplifier. The bright and fresh sound typical of DYNACO is attractive. This is an amplifier I want to play in combination with JBL, Altec, etc. The grill is missing, and there is a feeling of use due to aging (Daiki Goto)
Maintenance Information: 2024.4.11 Maintained (· Block Capacitor 30/20/20 μF Defect Replacement · Stereo/Mono Switch Defect Replacement · Shock Noise Improvement Measures → Spark Killer Addition · Vacuum Tube 7199 Noise Exchange · Mylar Capacitor 390pF Deterioration Replacement 2 · Resistors 1/2 W Deterioration Replacement · BIAS Readjustment · Vacuum Tube Socket and RCA Jack Caulking Repair. *Other operation checks have been performed (measured at 32 to 41 W SP: 8 Ω at rated output AC 100 to 117 V)
Accessories: instruction manual
Main specifications: rated output 35W+35W vacuum tube EL34 x 4 7199 x 2 GZ-34 x 1 W330 x H165 x D240 mm 12.5 kg