National사의 마지막 최고성능 진공관 단파수신기?

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저는 여기서 한시대가 오고 또 가는 것을 채험하면서 보고 있습니다.  

 

 

 

eBay 에  AN/WRR2

진공관 단파수신기로는 이 이상은 없을 것 같네요

 

 

https://www.ebay.com/itm/National-AN-WRR-2-Shortwave-Communications-Receiver-Navy-MT-2293-WRR-2-Mount/222883087241?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20131017132637%26meid%3Dadbd67cd73a444b096a783a28143b575%26pid%3D100033%26rk%3D5% %3D8%26sd%3D253472720590%26itm%3D222883087241&_trksid=p2045573.c100033.m2042

 

진공관 SW Receiver 의Ultimate version?

 

USB/LSB/ISB/AM/CW; Wadley Loop sythesized HFO; Triple-conversion; 1st

IF tuneable 1625-1725KHz, 2nd and 3rd IF fixed 220KHz and 80KHz; 65

tubes  + 24 semiconductor diodes  made by National Radio.