Hytron VT-52 Pair Vintage Vacuum Tubes (SR3#12)

This is a nice rare pair Hytron VT-52 tubes from my private collection.

Testing better than NOS and in excellent physical condition.

Details

Black Bases

Black Plates

Hanging Filaments

Long Support Rods

Bottom D-Getter

Test Results

Fully Tested on my calibrated Philco 9100.

They were tested as 45’s at 6.3V heater voltage.

Tube1: 2050 micro-mhos 40.0 mA

Tube2: 1900 micro-mhos 39.8 mA

Minimum 1480 micro-mhos

New  1850 micro-mhos

NOTE

There is no setting on my Philco 9100 tester for the VT-52 tubes.

I used a heater voltage of 6.3V not 7.0V.