18 May 19

Hallicrafters HT-37

Modes: SSB/AM/CW
Bands: 80 – 10 Meters (full bandswitching)
Output Power: 70-100W SSB, CW; 17-25W-AM
VFO: Yes
Power Supply: Internal
Final Tube(s): 2ea. 6146
SSB Method: Phasing
New Price/Year: $450-$495/1959-1963
Size: 9.5″h x 19.25″w x 16.0″d
Approx. Weight: 80 lbs

Source of Info Ham Radio Museum 

More info plus an inside view and schematic… Radio Museum . org

5 May 19

Bakelite was patented on December 7, 1909. The creation of a synthetic plastic was revolutionary for its electrical non-conductivity and heat-resistant properties in electrical insulators, radio and telephone casings and such diverse products as kitchenware, jewelry, pipe stems, children’s toys, and firearms.

More at Wikipedia and more about Leo Baekeland

30 April 19


SR-400 Production years were 1965-69

 400 W PEP, 360 W CW (power input), 20-tube 80-10 Meter CW/SSB Transceiver “Cyclone”. Dual conversion receiver. Include VOX, PTT, AALC, Product detector, 1650 KHz crystal lattic filter, CW side-tone, crystal calibrator, combined R.F output & S-meter, noise blanker, RIT with a 3 KHz offset, driver tube is a 7558. External power supply.