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03May
Comparing Collins 75a 4 Vs Hammarlund Sp600 Vintage Tube Boatanchor Radios
comparing
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25Apr
Beautiful Vintage Hammarlund HX-50 Tube-Type Amateur Radio Transmitter SSB CW AM
beautiful
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Beautiful working hammarlund hx-50 dating from the 1960′s. This vintage hammarlund was the home station of w5nvt, a silent key. It sat for years on a shelf in his office in his store, then after his death has sat on a shelf in my hamshack for years. I cleaned it up a bit for this listing — 4 tubes were replaced as they had low transconductance. I cannot check the 6c10 compactron as my hickok tube tester is too old. The transmitter was brought up slowly on variac over several days — and tested on cw and ssb on the 40 meter band. Good output and good sounding audio and cw signal. Note: this is a really heavy “boatanchor, ” weighing 47 pounds before packing and carton weight are added. This transmitter is guaranteed not to be dead on arrival. A spiral-bound copy of the operating/service manual is included. The manual is either an original or is one of the best copies i’ve ever seen! Important: i recognize two modifications, both reversible. The 5r4 rectifier has been replaced with solid-state diodes and a suitable dropping resistor added to compensate for the plate resistance of the 5r4 so that the b+ won’t be too high, and an additional filament transformer has been added under the chassis. Also — a second oa2 vr tube has been added — in such a professional way that it appeared to be an original stock item. There are many modifications recommended for the hx-50, many of them authorized by hammarlund.The item “Beautiful Vintage Hammarlund HX-50 Tube-Type Amateur Radio Transmitter SSB CW AM” is in sale since Monday, April 20, 2015. This item is in the category “Consumer Electronics\Radio Communication\Ham, Amateur Radio\Ham Radio Transmitters”. The seller is “mike_langner” and is located in Albuquerque, New Mexico. This item can be shipped worldwide.
- Brand: Hammarlund
- Model: HX-50
- MPN: HX-50
- Supported Modes: AM
- Frequency Band(s): HF
- Country/Region of Manufacture: United States