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Vacuum Tube - 1S5 / DAF91, Diode, Sharp Cut-Off Pentode

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SKU: T-1S5_DAF91
Item ID: 006398
Price: $3.55
In stock
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New-Old-Stock (NOS) tube.

Also known by US military identifier VT-172.

The 1S5 is a miniature tube containing a diode and a sharp-cutoff pentode. It is designed for use as a combined detector and audio-frequency voltage amplifier in compact battery-powered equipment.

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