McIntosh Transistor replacement and Identification Data (by part number) 1975 McIntosh Semiconductor Data. MC-440 (MC440) Auto Power Amplifier: product preview: MR80: FM Tuner: service: McIntosh Knob information.
Mcintosh mc 250 schematic serial number#
Stereo Preamplifier / MM MC Phono / Box / Manual 300 (pdx > Estacada clackamas. (MC-250, MC 250) (Need serial number for correct manual) Power Amplifier. These amps have not been powered up for at least 15 years. Vintage McIntosh 250 50 watt Amp vs Carver TFM 15CB 100 watt Solid state. If resistors measure okay, would it be best to leave them alone?īoth amps have Sylvania tubes throughout. Suppliers (ie Mouser, Part's Express, or something else)? If so, stick with caps as close to OEM as possible? Polystyrene? If I choose to keep each amp true to their original design, how different do you think they'll be sonically?Īny cap or resistor value differences you're aware of?ĭo you think automatically updating all the caps is a good thing to do? I would be grateful for any answers to the following.ĭoes anyone know where I might find a schematic for #2? I realize there are differing opinions on mods. I have not tried to reconcile either schematic with my actual amps, so can't say how similar or different they are. I also found schematics for an A-116-A, which seems near to #2, but with different transformers. I plan to dust off my VT theory and soldering iron (yes I'm that old) and get these amps serviceable while keeping them as near stock as possible.Īmp #1: MC-30, Type A-116-B, power trans. McIntosh-Semi-Conductor-List McIntosh-History-1949-1999 McIntosh-The-Best-Catalog McIntosh-Catalog-fr McIntosh-Tone-Audio McIntosh-1966-Catalog McIntosh-1968-Catalog McIntosh-1975-Catalog McIntosh-1982-Catalog McIntosh-1992-Catalog McIntosh-20W-2-Brochure McIntosh-50W-2-Service-Manual McIntosh-AE-2-Owners-Manual McIntosh-A-116-Schematic.
![mcintosh mc 250 schematic mcintosh mc 250 schematic](https://www.picclickimg.com/d/l400/pict/311311847346_/McIntosh-MC-250-Amplifier-Schematic.jpg)
I am blessed! As an EE and budget audiophile, this is a dream come true. 12AU7 / ECC82 / ECC802S Tube SRPP Preamp Schematic - (Project) 12AX7 Tube Hi-Fi. After 20 years of pestering, a friend of mine gave me the two mc-30 amps that her late father had. The hifi standard in McIntosh, Marantz and Fisher for 50 years running.