McIntosh MC240 Amplifier with Telefunken Tubes
Archived listing from the original vintage-amplifier.com. Prices, seller details and purchase links have been removed; this page is a reference record, and nothing here is for sale. About this archive.
Vintage McIntosh MC240 Amplifier – Vintage Tubes. This unit is in perfect working order. Besides a couple capacitor upgrades which improve the sound, this unit is all original. It is in excellent cosmetic condition for its age. All tubes are the original vintage 12ax7/au7 Telefunken,12bh7 mcintosh RCA and Mcintosh 6l6gc tubes.
About this model
The MC240 was McIntosh's first stereo power amplifier, made from 1960 to 1969 and rated at 40 watts per channel, or 80 watts in mono, according to the company's legacy list. Its output stage uses four 6L6GC tubes.
This example was all original apart from a couple of capacitor upgrades and still carried its original tubes: Telefunken 12AX7s and 12AU7s, McIntosh-branded RCA 12BH7s and McIntosh 6L6GCs. The seller of the earlier MC-30 in the archive ranked the MC240 among the best amplifiers McIntosh ever made, a view many collectors share.
| Maker | McIntosh Laboratory, Binghamton, USA |
|---|---|
| Model | MC240 stereo power amplifier |
| Production | 1960–1969 (McIntosh) |
| Rated output | 40 W × 2; 80 W mono |
| Output tubes | 4 × 6L6GC |
| Other tubes | 12AX7, 12AU7, 12BH7 (listing) |
Questions collectors ask
What was McIntosh's first stereo power amplifier?
The MC240, introduced in 1960, according to Wikipedia and McIntosh's legacy list.
What output tubes does the MC240 use?
Four 6L6GC tubes; this archived unit still had McIntosh-branded originals.
Sources: McIntosh legacy amplifiers; Wikipedia: McIntosh Laboratory.



