Röhre 2D21 ID4224, Thyratron

2d 21 Nonton Morphle 2D. Erek Erek 21 menurut buku seribu tafsir mimpi 2D 3D 4D bergambar dan primbon melambangkan sosok pelacur umum, sedangkan kode alam angka 21

2d 30, The 2D21 thyratron is, as usual, a gas filled valve, in this case the gas at low pressure is xenon. This example is of tetrode construction and was desned.