Radio Museum

Lots of old radios. Includes two modified HROs, one in a fetching shade of blue.

to hro radio retrotech ... on 25 June 2011

Radio Bay

Handy HRO links, including how to date them (although I'm not entirely convinced that the various sites agree on this).

to electronics hro radio retrotech ... on 25 June 2011

HRO Sr. Restoration

W1UJR rebuilds an HRO Senior (which looks very like the other one he did, fortunately).

to electronics hro radio retrotech ... on 25 June 2011

HRO 5 Restoration

Neat rebuild of a 5TA1. Good shots of the underside layout; his was only lightly modified and he's rebuilt it along the original lines.

to electronics hro radio retrotech ... on 25 June 2011

WB6BIH

Various radio restorations, including an *extremely* ratty HRO-5. This has a good shot of what the front panel's meant to look like on an unmodified HRO-5.

to electronics hro radio retrotech ... on 25 June 2011

HRO Dial Remove/Adjust

Removing and refitting the HRO dial.

to electronics hro radio retrotech ... on 25 June 2011

KF9CM

The "Mark III" WWII valve transmitter -- a fair match for an HRO -- and replacement HRO knobs.

to electronics hro markiii radio retrotech transmitter ... on 04 June 2011

HRO - Barry Williams

Good article on the history of the receiver.

to hro radio retrotech ... on 04 June 2011

HRO Product Detector

One design, using a generic pentode.

to electronics hro radio retrotech ... on 27 May 2011

Radio Bay

HRO dating and versions.

to electronics hro radio retrotech ... on 27 May 2011

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