National HRO 500 Schematic purchase

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Schematics sent by Email £1.80 (~ $2.20 or €2.10)

Saturday 27/4/2024 12:10
I am away until Thursday evening 21/12/2023 I cannot send any schematics marked TO SCAN until home, pre-scanned ones will be sent probably in the evening UK time
National HRO 500 (File : 0 National-HRO 500-1966.Circuit only.Radio P:
£1.80 (~ $2.20 or €2.10)
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National-HRO 500-1966.Circuit only.Radio preview

National HRO 500 Specification spec data sheet

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CountryUSA
ManufacturerNational Company; Cambridge & Malden (MA)
Alternative NameNational Toy Co.
BrandThrillbox
Model HRO-500 - National Company; Cambridge &
YearAmateur-Receiver (amateur bands, may include broadcast bands)
Transistors37:
TechnologySuperhet, double/triple conversion; IF 2750/230 kHz
Wave BandsBroadcast, Long Wave and more than two Short Wave bands.
Power TypeAlternating Current supply (AC) / 115 Volt
Dimensions420 x 195 x 325 mm / 16.5 x 7.7 x 12.8 inch
Net Weight14.5 kg / 31 lb 15 oz (31.938 lb)