Hro receiver manual

War Department Technical Manual TM, Radio Receiver R/FSM-1 National HRO Series of Receivers is absolutely the best manual I've found for the care feeding of HRO receivers. Publication date: August , 88 pages, MB PDF. The HRO is a classic communications receiver built by the National company in the USA in several variants from the mid 's through after WWII. The set is notable for its clever design which uses a series of plug-in coil units - one for each waveband, many. National HRO Receiver. Home. Back to Commercial Docs. The HRO needs no description of course. There is much information on its many variants on the internet. Here we provide the user manual (which includes technical information) and a British drawn circuit diagram. Full manuals. User Manual: British drawn circuit diagram.

The HRO receiver started in production at the end of and appears in various guises and until I knew nothing much about them but having recently repaired my brother in law's set, for which exercise I read the handbook and examined the circuit diagram, I discovered a bit of information and a quick look around the Internet gave me some background. USMC - Manuf by National -. Photos and Info here. Manual photos -. USMC TMA Radio Receiver R/GRR is a high dynamic range, dual-conversion superheterodyne receiver for the frequency range from to me, employing a digital synthesizer for virtually instantaneous frequency selection. National Receivers; National HRO-5 (HRO variation 5 of 6) Type: General Coverage Modes: AM/CW Tubes/Stages: 9/ 2-RF, 2-IF Audio Output: 6V6/W Product Detector: None Filter: Crystal New Price/Year: $ / (HRO-5) AC Power Supply (type ) $ Size: 9"h x "w x 12"d Approx. Weight: 45 lbs.

Restoring a Pre-WWII National HRO Receiver – Gerry O‘Hara The HRO is a classic communications receiver built by the National company in the USA in several variants from the mid 's through after WWII. The set is notable for its clever design which uses a series of plug-in coil units - one for each waveband, many. War Department Technical Manual TM, Radio Receiver R/FSM-1 National HRO Series of Receivers is absolutely the best manual I've found for the care feeding of HRO receivers. Publication date: August , 88 pages, MB PDF. The HRO needs no description of course. There is much information on its many variants on the internet. Here we provide the user manual (which includes technical information) and a British drawn circuit diagram.