Type UX112A means a Type 112A fitted with a 'UX' style of base cap, ie. with pins rather than 'nubs' and a bayonet. The 112A was an early American directly heated output triode for small battery radios. The load impedance would be 10,650 Ohms. However, the ratings may apply to later samples than our exhibit.

The balloon envelope is 42 mm in diameter and, excluding the UX4 base pins, is 98 mm tall.

 
Absolute Maximum Operating Conditions

Triode	Vh	Ah	Va	Vg	mAa	ra	gm	Pout
	5.0	0.25	180	-13.5	7.7	4700	1.8. mu_8.5	0.28W

This exhibit was last updated on 07 August 2006