Discussion in 'Ham Radio Discussions' started by K5FRH, Dec 12, 2018.
A very stout and large table will be required to support those ancient Hallicafter anchors.
The SX-101 Mark IIIA also had a product detector.
I may have an original Mark IIIA manual around "somewhere"! There were not that many Mark IIIA versions made before they came out with the SX-101A. The Mark IA was another short production and I don't know if there ever was a separate manual for that version or just an addendum to the Mark I manual.
Of course, the stability and frequency calibration were major factors. Also, I liked the selectivity (crystal filter) and the filter phasing better.
Hallicrafters got caught in the progression to product detectors. The original SX-111 (match to the HT-37) did not have a product detector but the SX-111 Mark I did have a product detector.
It may sound like heresy, but, for SSB, I definitely like the Heath SB-301 better than any of the "A" Line Collins receivers and the 75S-1 / 75S-2. Not the 75S-3- series, but the 75A-1, 75A-2, 75A-2A, 75A-3, and 75A-4 even with a product detector added to the 75A-2, 75A-2A, and 75A-3. Of course, the 75A-4 came with a product detector.
The Heath RX-1 Mohawk is often maligned. However, a good portion of that is due to the 3rd gain control for the intermediate frequency stages in addition to the "normal" r.f. gain and a.f. gain (volume). I do have a Mohawk and I definitely like it better than any of the SX-101 variants or the National NC-300 and NC-303. Also have an RME-6900 and it is better, in sound quality, than the Mohawk. The Heath MR-1 Comanche and HR-20 (same basic design as the MR-1 but with improvements) are very good SSB receivers and AM as well. But, they don't have any narrow filtering for CW.
K1ZJH de W7ASA
THAT Sir, is a REAL radio shack! Gorgeous pics. Thanks for posting them.
73 de Ray ..._ ._
I have an SX-101A and HT-32B setup, plus an HT-37/NC-300 paired, SB-301/401 twins, and a number of other boat anchors that I rotate. While my FT-950 outperforms them, I find the old tube stuff a lot more fun to operate. Mostly casual on 80 meters, no serious DXing. I have another NC-300 and a couple more HT-37s to go through. 3 SX-28's, one coupled with a Heathkit Marauder, a couple of DX-100s. Looking for a Mohawk RX-1 to mate with the Marauder.
What else...FT-101E, several other SB and HW series Heathkits, couple of Kenwoods, a Hamerlund 170A and a few others. Love the looks of the older stuff.
73 de Mark/KB1PLC