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							| Philips E443H later version |  | 
				 Pentode Introduced in 
				1929 
				
					
						| 1 | 2 | 3 | 4 | sc/5 | base |  
						| a | f | f | g1 | g2 | B4/5 |    
					
						| Vf | Af | Va | Vs | Vg | Ra | mAa | mAs | gm | Pout | Pdiss |  
						| 4 | 0.9 | 400 | 300 | -30 | 33,000 | 28 | 6.8 | 1.8 | 3 | 12 |  
							
								| Equivalent | 5-443, D1004, DW11, 
								DW3, L491D, L496D, 
								PM24C, PM24M, PP4100, PP4101, RES664D,
								RES964, 
								RS4543, 
								T1304, 
								TE43H, TV4110, 
								W443H, W516,
								WE30 |  |