| .jpg)  |  
					
						| 
				
				Philips E444 with 
				pivot-shaped top connection |  | 
				 Binode (Tetrode - diode) Introduced in 1933 
				
					
						| 1 | 2 | 3 | 4 | 5 | 6 | top | base |  
						| k,m | f | f | g2 | g1 | d | a | B6 |    
						
					
						| Vf | Af | Va | Vs | Vg | mAa | Ra | gm |  
						| 4 | 1.1 | 200 | 60 | -2.3 | 1 | 1,000,000 | 2 |  
							
								| Equivalent | 5-444, AN4126, 
								DS4100, 
								RENS1254, 
								RS4144, SB4110, SD4, T4400, TE44, W444,
								WE26 |  |