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						Output 
				pentode 
						Introduced in 
				1932 
							
								
									| 1 | 2 | 3 | 4 | 5 | 
									sc | 
									base |  
									| a | f | f | g1 | k,g3 | g2 | B5 |    
							
								
									| Vf | Af | Va | Vs | Vg | mAa | mAs | Ra | gm | Pout | Pdiss |  
									| 4 | 1.1 | 250 | 250 | -15 | 24 | 7 | 70,000 | 2.5 | 2.8 | 6 |  
								
									| Equivalent | 5-453, A4IF, 
									APP4100, DW9, E453, 
									MP-PEN, 
									MPT4, P440N, PEN4VX, 
									RENS1374d, RS4353, S100, 
									TE534 |  |  |  |