Telefunken EMM 801 Tuning Indicator Tube
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.
1 ea. (single) original 1960’s NOS, New in original box Telefunken EMM 801 double bar tuning indicator tube. This tube is SEALED IN ITS ORIGINAL PLASTIC!!!! This tube has not seen the light of day in over 40 years. I recently purchased a whole sleeve of these tubes from a man who stocked up on them back in the 1960’s and never used them.
You can put this sealed EMM 801 tube in your collection or you can open it and put it in your Dynaco or McIntosh MR67 tuner. These were also used in many recording devices. Telefunken stopped making these in the 1970’s and there is no equivalent or substitute tube for the EMM 801. These may be the only new, sealed Telefunken EMM 801 tubes left on the planet.
About this model
The EMM801 is a double-bar indicator tube, one of the "magic eye" family. Data pages describe it as introduced in 1957 on a nine-pin B9A base, and used as a recording-level indicator in stereo tape recorders as well as in tuners; two bars show the two stereo channels. The seller describes a new, sealed tube from a sleeve bought in the 1960s, and says Telefunken stopped making them in the 1970s with no equivalent.
The green glow of an indicator like this is the motif behind this site's logo.
It is one of several German tubes on the tubes and testers page, alongside Loewe's REN 904.
| Maker | Telefunken, Germany |
|---|---|
| Type | EMM801 double-bar indicator tube |
| Introduced | 1957 |
| Base | B9A (noval) |
| Use | Stereo tape recorder level meters, tuners |
Questions collectors ask
What is the Telefunken EMM801 used for?
As a two-channel level indicator in stereo tape recorders and as a tuning indicator in some tuners.
When was the EMM801 introduced?
In 1957, according to tube data pages.
Sources: Radiomuseum: EMM801; Wikipedia: Telefunken.



