NOS in original boxes, from service packaging 100 pcs box, all same codes, WWII JAN batch. rare square getter (one of the 1st versions made by Sylvania!!!), matched pairs available. JAN US NAVY surplus

1T4 DF91 Sylvania JAN square getter 1T4 DF91 Sylvania JAN square getter 1T4 DF91 Sylvania JAN square getter
1T4 DF91 Sylvania JAN square getter 1T4 DF91 Sylvania JAN square getter 1T4 DF91 Sylvania JAN square getter

These directly heated AF & IF pentodes intended for use in small battery powered old portable and car radios ( Akkord Offenbach U54, Vidor Riviera, Storens Metro B, Philips Picknick, Minerva Portable, Grundig Boy Junior, Lorenz Weekend II, Telefunken Teleport, …) become very popular nowdays in battery preamplifier constructions and headphone amplifiers (Analog Squared Paper – Japan).

 

Click to see all PREAMPLIFIER PENTODES in stock

Leave a Reply