*Shipping service Radio and Experiment Separate Book/Special Feature = Thorough Study of Speaker Unit/604-8H (8K), K3830, DS-405, 12TRXC, 4583A, 416-8B, 2441, TD4001, ED915, SLE20W, D252, 8A70, SP8C, JA2071, UP203S, FP203S, PM2, 755E, 20F10, AF80X, LE8TH/S56
Maintenance information: C (broken streak, scorch, and tint stain) [Status is determined in 3 stages A to C. (Please refer to the following for details)] ~ 3 discount from normal used price taking into account the condition.
※Shipping service. Special Feature = Design and Production of Converter for Hum/Production Using Low Noise Tube 6267 Part 2 /Association Displacement Type Recording Where Waveforms Appear on Tape/Published S34.7.1.
Maintenance information: B [The status is judged in three stages A to C. (Please see below for details)]
※Shipping service. “The Enchanting Vacuum Tube Amplifier: Its History, Design, Production (Volume 2), Reprint Edition” /Radio and Experimental Edition/Supervisor: Isamu Asano/1990.6.15. The photograph is a sample, so the actual product may be broken, or there may be markings etc.
※Shipping service. Written by Isamu Asano/ After the publication of “Fascinating Vacuum Tube Amplifiers” and “Continued Fascinating Vacuum Tube Amplifiers,” it was reprinted and edited, centering on production articles published in “Radio and Experiments” magazine from 1975 to 1979. 2004.5.1 The first edition was published. The photograph is a sample, so the actual product may be broken, or there may be markings etc.
※Shipping service. A book that has been reprinted, compiled, and compiled mainly on production articles published on “Radio and Experiment”. Some corrections and additions have been made at the time of reprinting. Contents = Single Amplifier: 2A3 Single 3.5W Power Amplifier Using Grid Choke, Non-Feedback 6550 Single 15W Power Amplifier/Push-Pull Amplifier with Focus on Distortion Cancellation Operation: Small Output A 71A push-pull 2W power amplifier with an attractive sense of transparency, and a 6CA7 push-pull 50W power amplifier using a high-power pentode tube that has a reputation for good sound, etc. Has basic knowledge of tube amplifiers Issued 2008.3.3 Since the photograph is a sample, the actual product may be broken, written, etc.
※Shipping service. MJ Radio and Experiment Editorial Department/Reconstructed by carefully selecting 80 models of Japanese amplifiers and 100 models of advertisements published in “Radio and Experiments” magazines from the 1970s to 80s. Published 2014.10.7. The photograph is a sample, so the actual product may be broken, written, etc.