Description
McIntosh C29 Control Amplifier Transistor Refurbished Audiophile Quality AC100V Description ?Manufacturer and model number Mcintoshi C29 (ELECTRI/100v specification) ?Accessories Input short pin x 2 ? Condition/Maintenance details Maintenance operation confirmed Lch output malfunction repair: PCB input cable solder repair Repair of TONE/BARANCE/MAIN VR operation noise: Cleaning of each VR/SW contact (e-cleaner), MAIN-VR removal and disassembly contact cleaning (contact reviver & e-cleaner) Panel lighting LED: 5 panels, 2 rotary switches Input/output plug corrosion repair: Rust removal and polishing treatment Top panel paint deterioration repair: Rust removal and repainting There is still surface roughness on the guide plate of the top panel. There was a lot of deterioration due to rust on the top and rear panels, but the interior was kept in very good condition. The air bubbles on the front panel are merely small, thin bubbles protruding from the top and bottom edges of the panel. We carry out maintenance in our shop. All parts are working properly. ? About the product McIntosh C29 Price unknown (Early 1970s?) A preamplifier that inherits the amplifier technology of the C28 and C32. The input selector has double silver contacts for a robust construction. In addition, the shielded network at each high-level input and the short switch that grounds the unwanted inputs ensure that There is no feedback of signals between the input circuits. The newly developed IC and OP amplifier were carried in the Phono equalizer, and low-distortion low-noise-ization of the difference input circuit is realized in it. In order to fully demonstrate the low-noise effect, the part with few errors is adopted as a feedback circuit. The IC headphone amplifier with a distortion rate of 0.1% or less is developed and adopted as a headphone amplifier. It is possible to operate two dynamic type headphones simultaneously. The volume can be adjusted using the headphone volume control. Switching is done by push button, and the switch is mounted directly on the printed circuit board. The input and output circuits to each tape deck are shielded to eliminate DC leakage from the other tape deck. It reduces pop and click noises that occur when switching. The volume control uses McIntoshs proprietary high-precision stepped attenuator. It consists of a control with a range of 70 dB divided into 32 steps and a volume OFF. The loudness control can be continuously variably controlled by the Loud knob. In order to remove the hum and raise the signal to noise ratio, the power transformer is shielded threefold with a copper plate, a silicon steel sheet, and a metal case. At an output voltage of 24V, a full-wave rectified voltage is supplied to the monitor amplifier by a 3,000?F capacitor, and 18V is divided from this output voltage. It is supplied to the constant voltage circuit and op amp circuit through the IC voltage control circuit. By the current-sensitive outlet circuitry (SCR adoption), if a player operates, the power source of a preamplifier will also be in ON state. When the player is turned off, the power is also turned off. You can also turn this function off. Type: Stereo power amplifier Frequency response: 20Hz to 20kHz +0 -0.5dB Distortion rate: 0.02% or less Input sensitivity/impedance: Phono1, 2: 2mV(1kHz)/47k?(65pF)/AUX, Tuner, Tape1, 2: 0.25V/250k?/MIC: 2.5mV/500k? Hum and noise: AUX, Tuner, Tape 1, 2: IHF 100dB, 90dB (no weighting) / Phono 1, 2: IHF 90dB, 80dB (at 10mV input) Output level/impedance: Main output: 2.5V/10k? (at rated input)/Tape output: 0.25V/10k? (at rated input)/Headphone, Line output: 0.75V (8?), 2.5V/600? LF-HF filter: 50Hz or less, 7kHz or more (12dB/oct) Bass control: +20dB to -20dB (20Hz), 11 levels Treble control: +18dB to -18dB (20kHz), 11 levels Volume control: 0dB to -70dB, continuously variable Power supply: AC120V, 50Hz/60Hz Power consumption: 45W External dimensions: Main unit: Width 375 x Height 122 x Depth 330 mm (including pan lock) / Front panel: Width 406 x Height 138 mm Weight: 8.6kg (packaged: 14.1kg) Payment We accept Managed Payments ONLY. Please pay us within 5-10 days after the auction closed. Shipping I ship it in Expedited shipping(EMS,Fedex,DHL)I attach the tracking number. Please bid it without worrying*We can not use International e-Packet (Japan Post) service for some countries in Central Asia (Kazakhstan, Kyrgystan, Tajikistan etc.) If your shipping address is in these areas, please contact us before bidding. *For stuffed animal products, we may use compression bags for shipping (please understand that some wrinkles may occur). International Buyers - Please Note: * Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyers responsibility.* Please check with your countrys customs office to determine what these additional costs will be prior to bidding/buying.* These charges are normally collected by the delivering freight (shipping) company or when you pick the item up - do not confuse them for additional shipping charges.* We do not mark merchandise values below value or mark items as gifts - US and International government regulations prohibit such behavior. ?CautionYou may need a plug adapter for the battery charger according to where you live and use.This chargers plug type is A
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