Good afternoon 04.09.2010 [18:03:57]     Eigenbau-Projekt HBR-13Chomemade hamband receiver HBR-13C     Print version
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hamband receiver HBR-13C

In the late 1950s Ted Crosby, W6TC described in QST several designs of a high quality ham band receiver, which could be built  by radio hams.

Alex Stewart, WA4ZNI described later a version using the then famous Eddystone-Dial, that he used for his third (!) HBR-receiver (QST october 1965). The large dial required rearrangement of the internal structures.

I wrote Alex (snail mail - no e-mail at that time) and he was very helpful, sending me a documentation and procured a few selected parts, that I could not buy here. We had a very interesting letter conversation.

I then built the receiver (it took quite a while until it worked ...). It was a very instructive experience and I enjoyed the usage of this receiver very much.

HBR-receivers were often built in these years. Here is a website, containing a lot of pictures and descriptions about this HBR-series. There is also a forum, where mostly US-hams discuss restore (Öffnet externen Link in neuem Fenstersee here),repair and building from scratch, the parts procurement beeing the most tedious job. QST February 2009 carried an article on page 96 (vintage radio).

There was mention of a e-book (CD) recollections of a radio receiver, which is described on the website of Öffnet externen Link in neuem FensterW6HHT

I bought the CD and am amazed at the work, Jay has done over the years. Hams commented the CD on Öffnet externen Link in neuem Fenstereham.net - a pleasant reading.

I had not touched my HBR for 20 years at least. Now it is back on my workbench. I found some errors and replaced a tube. 40m cw reception was possible. But I will now make a careful alignment and finishing up - no rush about this. 

 

 

Here a few pictures:

frontview of my HBR-13C using the Eddystone dial 898

side view showing the plugin coils.

Changing bands meant the exchange of 3 large plugin coils. This was a little bit awkward, but this was a way to produce a high quality receiver frontend without using high tech measurement equipment.

 

first IF 1610 kHz, second on 100 kHz