Extremely Rare New

Extremely Rare Authentic Telefunken RS 680 RF Tetrode Tube Military. NEW


Extremely Rare Authentic Telefunken RS 680 RF Tetrode Tube Military. NEW
Extremely Rare Authentic Telefunken RS 680 RF Tetrode Tube Military. NEW
Extremely Rare Authentic Telefunken RS 680 RF Tetrode Tube Military. NEW
Extremely Rare Authentic Telefunken RS 680 RF Tetrode Tube Military. NEW
Extremely Rare Authentic Telefunken RS 680 RF Tetrode Tube Military. NEW
Extremely Rare Authentic Telefunken RS 680 RF Tetrode Tube Military. NEW
Extremely Rare Authentic Telefunken RS 680 RF Tetrode Tube Military. NEW

Extremely Rare Authentic Telefunken RS 680 RF Tetrode Tube Military. NEW    Extremely Rare Authentic Telefunken RS 680 RF Tetrode Tube Military. NEW

Extremely Rare Authentic Telefunken RS 680 Vacuum Tube. Professional / Military Grade RF Tube. Documented in Telefunken Taschenbuch 1971 and "Radiomuseum".

MPR E6C - final quality-control stamp (Mess-Prüf-Referenz / End-of-Final test). AF - factory / line code. Hand - engraved number: 96 - inspected by Telefunken technician. Such marking are typical for limited production runs and make every tube traceable to its original batch.

A very rare model - almost never appears on the open market. Untested/ Visual inspection only, no signs of use. For collectors interested in similar series, see our " Telefunken RR 680 " tube. We will be happy to resolve any issues. We always try to guarantee 100%.
Extremely Rare Authentic Telefunken RS 680 RF Tetrode Tube Military. NEW    Extremely Rare Authentic Telefunken RS 680 RF Tetrode Tube Military. NEW