3/21/2024 0 Comments Hammarlund super pro![]() ![]() The loudspeaker used in both videos is a full-range vintage Jensen 10? with matching transformer from the 1950’s instead of a communications range speaker typically used with these radios. The first features reception of Radio National da Amazonia and the second is a brief operating demo of the SP-600. Here are my two most recent reception videos of the SP-600. 1847 long-life incandescent bulbs as direct replacements for the brighter (too bright, for me) No. Like military and industrial users I upgraded the original nickel plated tube shields with IERC heat dissipating tube shields where possible. By the time this SP-600 was built in 1957 Hammarlund had replaced the short-lived black beauty electrolytes with ceramic disc capacitors. This relatively late production SP-600 is in stock condition with the exception of a half dozen electrolytic capacitors that I replaced mostly in the power supply. The SP-600-JX-21 is one of my daily drivers. ![]() I have a few vintage Hammarlund radios including two Super-Pro models. It is good to know that this part of our radio history is valued and preserved. Here are my thanks to members of the Amateur Radio community and The News-Record & Sentinel for remembering the legacy of Hammarlund Manufacturing Company Incorporated. Many thanks to SWLing Post contributor, DanH, who shares the following comment in response to this news article from the Citizen Times featured in Radio Waves yesterday: ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |