Cosmo Industries Inc. 1959 Cosmophone 35 Bilateral Transceiver & Late Matching Power Supply in Very Good Condition RARE!

Cosmo Industries Inc. 1959 Cosmophone 35 Bilateral Transceiver & Late Matching Power Supply in Very Good Condition RARE!

This Transceiver belongs to a close friend of mine who is Down sizing due to health problems.

 It was up and running when I picked it up recently. the Receive was working and he said he was able to transmit and get the rated 35 watts output.

  He did not hook it up to transceive, however there is a dow Key on the back of it to facilitate this.

 The late power supply included (with the cable) was made by Tektronix and Cosmos used this modified Tektronix Scope power supply to run the rig, rather than built their own (Since it had all the correct voltages)

The only problem I could find, it something is impeding the travel of the freqency pointer. The dial cord is good and intact but when you tune the radio moving the pointer to the left, it stops and feels like it is bumping up against a screw or something, and kind of cocks off to the side.

 This Rare transceiver comes with the Original Manual.

I am selling it as is, as described.

If the shipping amount is less for your location, I will refund the difference.

 The shipment will have to be done in two boxes for safe shipment.

 The Cosmophone 35, is a groundbreaking vintage ham radio transceiver from the late 1950s, often hailed as a pioneering "boat anchor" rig.

Manufactured by Cosmos Industries Inc. in Long Island City, New York, it represents an ambitious early effort in all-band, multi-mode operation. Its "bilateral" design (dual-channel with independent receive/transmit paths) allowed for seamless switching between receiver and transmitter modes within a single cabinet—either separately or together—making it a versatile workhorse for amateur operators. Produced in extremely limited numbers (fewer than 100 units total, with very few surviving today), it's a collector's holy grail, predating even Collins' iconic KWM-2 as the first commercial all-band transceiver. 

Power output is typically 35–50W PEP on SSB;

Frequency Coverage

All amateur bands: 80m, 40m, 20m, 15m, 10m (3.5–30 MHz continuous). Dual VFOs for split-frequency ops and independent RX/TX tuning—revolutionary for 1958.

Modes

SSB (single sideband), AM (amplitude modulation), CW (continuous wave). Full break-in on CW for smooth QSK.

Power Output

35W PEP on SSB/CW; efficient 6146 beam tetrode final amplifier (dual finals for stability).

Receiver

Double-conversion superhet with crystal filters; sensitivity ~1 µV; excellent dynamic range for weak-signal work. Bilateral design minimizes desensitization during transmit.

Transmitter

Voice-operated (VOX) or PTT; built-in speech clipper and audio processing for punchy SSB. Modular construction for easy maintenance.

Construction

Heavy-duty tube rig (20+ tubes total, including 6BA6, 12BY7, and EL-type drivers); rack-mountable cabinet (~50 lbs); AC/DC power supply.

Dimensions/Weight

Approx. 19" W x 10.5" H x 16" D; 45–50 lbs—built like a tank for enduring DX chases.

Sources: Original QST ad (Feb 1959) and RigPix database. 

 Built in 1957–1958 as Cosmos' flagship model. The company (a small NYC outfit) ambitiously aimed to rival giants like Collins and Hallicrafters but folded soon after due to market pressures. Later variants (Cosmophone 50: upgraded filters; 1000: 1kW PEP beast) shared the core design. 

 Its dual-VFO bilateral architecture was ahead of its time, enabling true transceiver simplicity without the clunky separate RX/TX setups of the era. Ham reviews from QST and forums praise its "silky smooth" tuning and "punchy audio," though tube heat and alignment needs are noted as typical for 1950s gear. 

 A 2017 YouTube history by Brian Harris (WA5UEK) calls it "the unsung hero of early SSB," with restorations (e.g., Nick Tusa's 2019 presentation) highlighting its mod-friendly chassis. 

Collectibility: Ultra-rare—fewer than 50 known survivors. these  rigs could command $2,000+ in restored condition.