20 of 221 for sale, brand-new and used.

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QTY. 1. THERMOLYNE TYPE 1500 FURNACE, MODEL: F-D1525M, S/N: 221, 120V, 540/60HZ.

1P28 PHOTOMULTIPLYER TUBE WITH HIGH LIGHT INTENSITY DYNODE CHAIN CIRCUIT IN BRASS HOUSING I TESTED IT AND IT WORKS OK THIS DYNODE BASE CIRCUIT IS TO MAINTAIN LINEAR RESPONSE AT HIGHER LIGHT INTENSITIES. (SEE SCHEMATIC PHOTO) THIS WILL OUTPUT UP TO 8 mA INTO 50 OHMS LINEARLY.

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