National HRO Schematic purchase

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

Friday 19/4/2024 19:49
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 (File : 0 National-HRO-1937.Rider.Radio P: pdf)
£1.80 (~ $2.20 or €2.10)
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National-HRO-1937.Rider.Radio preview

National HRO Specification spec data sheet

These notes are automatically scraped from Google, Bing, Yahoo, Yandex
by an Artificially (not so) Intelligent algorithm
CountryUSA
ManufacturerNational Company; Cambridge & Malden (MA)
Alternative Name National Toy Co.
BrandThrillbox
ModelHRO History / Classification - National Company; Cambridge &
Year: 1937Commercial Receiver (may include amateur bands)
Valves9:
TechnologySuperhet with RF-stage; IF 456 kHz; 2 AF stage(s)
Tuned Circuits11 AM circuit(s)
Wave BandsBroadcast plus more than 2 Short Wave bands.
Power TypePowered by external power supply or a main unit.
Dimensions438 x 223 x 300 mm / 17.2 x 8.8 x 11.8 inch
Net Weight14.5 kg / 31 lb 15 oz (31.938 lb)
SourceBook: Rider Vol: 8 Page: 1
SourceBook: Rider Vol: 17 Page: 7