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Power Unit 5897-AB

Power Unit 5897-AB; National Company; (ID = 2397120) Power-S Power Unit 5897-AB; National Company; (ID = 821083) Power-S
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Power Unit 5897-AB; National Company; (ID = 2397120) Power-S
National Company;: Power Unit 5897-AB [Power-S] ID = 2397120 1000x970
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For model Power Unit 5897-AB, National Company; Cambridge & Malden (MA):
Bild aus eigener Sammlung, Netzspeisegerät zum National HRO Var. 2
Country:  United States of America (USA)
Manufacturer / Brand:  National Company; Cambridge & Malden (MA)
alternative name
National Toy Co.
Year: 1935 Category: Power supply/conditioner or battery or charger 
Valves / Tubes 1: 280
Wave bands - without
Details Power Supply (not only Batt.El.)
Power type and voltage Alternating Current supply (AC) / 115 Volt
Loudspeaker - - No sound reproduction output.
Power out
from Model: Power Unit 5897-AB - National Company; Cambridge &
Material Metal case
Shape Tablemodel, high profile (upright - NOT Cathedral nor decorative).
Notes Power Supply for FB-7, FB-7-A, FBA, FBX-A and early HRO communication Receivers.
Output Voltage 2.5 V/9.5 A AC and 230 V/65 mA DC B+. Attention: Transformer for 60Hz power-line!
Price in first year of sale 35.00 $
Source of data -- Collector info (Sammler)
Mentioned in Shortwave Receivers - Past & Present (3rd ed.)

Model page created by a member from A. See "Data change" for further contributors.

All listed radios etc. from National Company; Cambridge & Malden (MA)
Here you find 430 models, 275 with images and 162 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.