Vacuum Tube - 1S5 / DAF91, Diode, Sharp Cut-Off Pentode | Antique Electronic Supply
2038-47-SM-LF_8545683.PDF Datasheet Download --- IC-ON-LINE
1S5 @ The Valve Museum
Adding aux input to an old tube radio | The Cheapskate Engineer
Sylvania Technical Manual 1949
Foreign Tube Substitution Data, May 1959 Electronics World - RF Cafe
1S5, Tube 1S5; Röhre 1S5 ID430, Diode-Pentode | Radiomuseum.org
1S5T TUNGSRAM LOT OF 1 DIODE-PENTODE AUDIO FREQUENCY VACUUM TUBE ~ 1S5 1U5 | eBay
electron Tube Data sheets - 1
Sylvania Technical Manual 1949
Valve Circuits B1
Overhaul Instructions with Parts for Motor Actuated Gate Shut Off Valve - Part WE484-1D - AirCorps Library
WA2ISE sub-miniature tube page
The NZ Vintage Radio Project - Columbus model 402Z 'Portable' (circa 1948)
1S5 | UNSORTED | DIODE-PENTODE TUBE At 2 € HT on Electols
Bicho
1S5 – Tubes R' Us
1R5 - doctsf.com, base documentaire lampes (tubes)
Download - Vacuum-Tube-Shop
1S5 @ The Valve Museum
20 ) Sealed Unused DAF91 1S5 SIEMENS OLD TUBE NIB OVP for BATTERY RADIO RÖHREN | eBay
1S5 Datasheet, Pentode Amplifier.
Printing Card Punch - IBM, Model 026, circa 1956
