Marantz 7 Preamplifier with RCA 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 Marantz 7 Serial # 7-20181. Excellent….Excellent ….Conditions.
All Original….See pictures. All 12AX7 is RCA …Great Britain.
About this model
A Model 7, serial 7-20181, described as all original with RCA 12AX7 tubes made in Great Britain. The original post's title calls it a 7C; the listing itself simply says Marantz 7, and we have not found a reliable explanation of the C suffix. A later serial than the 7-17912 unit in the archive, it would date from a few years later in the production run, which began in 1958.
| Maker | Marantz, New York, USA |
|---|---|
| Model | Model 7 stereo preamplifier |
| Serial | 7-20181 (listing) |
| Tubes | 12AX7, RCA made in Great Britain (listing) |
Questions collectors ask
What do Marantz 7 serial numbers tell you?
They indicate roughly where a unit falls in the production run, which started in 1958 and lasted more than twelve years.
What tubes does a Marantz 7 use?
Six 12AX7s. This example had RCA tubes made in Great Britain.
Sources: Sound & Vision: Is This the Holy Grail of Classic American Hi-Fi?.


