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PAC224

Information - Aide 
ID = 72399
       
Pays:
Etats-Unis
Fabricant: Perryman Electric Co., Inc.; North Bergen, NJ
Concepteur: Westinghouse El. & Mfg. Co. - see also Canadian W. 
Type:  Lampe à grille-écran   RF/IF-Stage 
Identique à PAC224 = 224 = 124 = 24 = UY224 = C324
Première source
1929 : -- Original prospect or advert

Culot UY-Base, 5 Pins (USA, April 1927) Connexion au sommet par téton.
Utilisé par Radio/TV-reception etc.
Chauffage Vf 2.5 Volt / If 1.75 Ampère / Indirect / Specified voltage AC/DC
Description The advertisement in "Radio" Nov. 1929, page 61 shows that this tube was fitted with the patented ceramic Perryman Bridge. This was two special spacers, one placed between the press and element base. This had the necessary wires passing trough it for sturdiness, insulation and parallel alignment. The second bridge was placed on top of the element structure. This element structure would have been expensive to make and it is not known how long this tube variation was commercially available. 
Dimensions
(l x h x p)
incl.pins/tip
x 123 x 45 mm / x 4.84 x 1.77 inch

uy224_pin_assignment~~8.png PAC224: Fin Stewart
Fin Stewart


Just Qvigstad
1usa_perryman_radio1929_3~~6.png
PAC224: Manufacturer's Literature 1929
Anonyme 15 Collectionneur

 

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