A while back, I was looking for a transmitter to pair with my Hammarlund HQ-170C. Normally, this would have been paired with an HX-150. So I started searching for one. I quickly found out two things. First, the HX-150 was not an easy transmitter to find. Second, when one was located, it tended to be expensive.
Given this, I started looking at other possible transmitters to pair with the Hammarlund. After a while checking out the various options, I discovered the Collins 32S-1 transmitters were reasonably commom and cheaper than the Hammarlund; and might pair up well. So I set about trying to find one in reasonable shape, and in fairly short order, I had a 32S-1 in my possession.
Unfortunately, the 32S-1 isn't much use without a power supply. So after a bit more looking, I picked up a 516F-2 power supply; without a cabinet of course. Once I got it, I decided I really wanted to have a cabinet for it to call home. So the next thing I picked up was a 312B-3 to house the power supply and also have a speaker if (should I say when) needed.
Had I really thought about it up front, I would have looked for a power supply already in the cabinet. Oh well, next time.
Since the 32S-1 was bought "AS IS" I had no real idea of the electrical condition. So I proceeded to download (and later get an original) manual with all the information and, most importantly, the schematics.
AFTER reading all about the 32S-1, I decided it wasn't really wasn't really going to pair as nicely as I hoped with the Hammarlund. Yes, I could make it work, but I decided it would be "better" to pair it with the intended 75S-1.
So after joining the Collins Reflector I put out a request for a 75S-1, and was the owner of one in fairly short order. Now I had a need for the speaker in the 312B-3.
And the saga continues...
32S-1 Transmitter |
From the 1961 Collins Amateur Radio Equipment brochure: Collins highly flexible 32S-1 Transmitter covers all the amateur bands between 3.4 mc and 29.7 mc with a power input of 175 watts PEP on SSB or 160 watts on CW. It has a nominal output of 100 watts. The 32S-1 comes equipped with the crystal sockets, crystals and bandswitch positions for eleven 200 kc bands, with the standard amateur configuration equipped as follows: 3.4-3.6, 3.6-3.8, 3.8-4.0, 7.0-7.2, 7.2-7.4, 14.0-14.2, 14.2-14.4, 21.0-21.2, 21.2-21.4, 21.4-21.6, 28.5-28.7. Crystal sockets and bandswitch positions also are provided for two additional 200 kc bands between 28 mc and 29.7 mc. A fourteenth position, corresponding to the WWV position of the receiver, can be used for an additional 200 kc band in the 9.5-15.0 mc range, if desired. |
516F-2 Power Supply |
From the 1961 Collins Amateur Radio Equipment brochure: Used with the 32S-1 and KWM-2, supplying all the voltages for them. 115 v 50-400 cps. |
312B-3 Speaker |
From the 1961 Collins Amateur Radio Equipment brochure: Contains a 5 x 7 inch speaker and connecting cable. Styled to match the 75S-1 Receiver and 32S-1 Transmitter or KWM-2 Transmitter. |
75S-1 Receiver |
From the 1961 Collins Amateur Radio Equipment brochure: In [the] Collins 75S-1 Receiver you get sharp selectivity and exceptional sensitivity because of the advanced circuitry designed into this receiver by Collins engineers. The Collins Mechanical Filter achieves selectivity unsurpassed in the amateur field. The 75S-1 sensitivity is better than 1/2 uv (with a 50 ohm dummy antenna) for a 10 db signal-plus-noise-to-noise ratio. Covering all amateur bands between 3.4 mc and 29.7 mc, the 75S-1 gives you reception on SSB, CW and AM. The receiver is supplied in the standard amateur configuration with crystal sockets, crystals and bandswitch positions for 3.4-3.6, 3.6-3.8, 3.8-4.0, 7.0-7.2, 7.2-7.4, 14.0-14.2, 14.2-14.4, 21.0-21.2, 21.2-21.4, 21.4-21.6, 28.5-28.7. Crystal sockets and bandswitch positions also are provided for two additional 200 kc bands between 28 mc and 29.7 mc. A crystal and bandswitch position is also provided for 14.8-15.00 mc for th ereception of WWV and WWVH for time and frequency calibration data. The 75S-1 contains a 100 kc crystal for calibration. |
KWM-2 Transceiver |
From the 1961 Collins Amateur Radio Equipment brochure: For your ham shack at home for for the mobile unit in your car - or for use in other installations such as aboard a boat or plane - Collins KWM-2 Transceiver gives you mobile, portable and fixed station single side-band communication on all amateur bands between 3.4 mc and 29.7 mc. The KWM-2 power inout is 175 watts PEP on single sideband or 160 watts on CW. It transmits on voice or CW with a nominal output of 100 watts for complete coverage on 80 through 10 meters. Jacks for connection of power supplies an dauxiliary equipment are at the rear of the cabinet. Crystal sockets, crystals and bandswitch positions for twelve 200 kc bands, with the standard amateur configuration equipped as follows: 3.4-3.6, 3.6-3.8, 3.8-4.0, 7.0-7.2, 7.2-7.4, 14.0-14.2, 14.2-14.4, 14.8-15.0, 21.0-21.2, 21.2-21.4, 21.4-21.6, 28.5-28.7. Crystal sockets and bandswitch positions are provided for two additional 200 kc bands between 28 mc and 29.7 mc. |
CP-1 Crystal Pack |
From TM 11-5820-554-12: [The] Collins Crystak Pack CP-1 consists of a packet, a set of crystals for operations of the KWM-2/2A over their complete frequency range, and a set of crystal grippers for use in installing and removing crystals from the equipment. The crystals not supplied are those for the range of 5.0 to 6.6 MHz. Operation between 5.0 and 6.6 MHz is not desirable because of spurious responses of the equipment due to the second harmonics of the variable IF stages. The packet is a waterproof plastic material containing a pouch for each crystal and one for the crystal grippers. The complere packet may be snapped and strapped into the Collins CC-2 for transportation as part of a transportable station. |