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Page 1- Vintage Multiband Receivers: (see below)
Page 2- Vintage Transmitters and Transceivers: TRANSMITTERS/TRANSCEIVERS
Page 3- Electromechanical Tranceivers (Telephones etc): TELEPHONES ETC....
Page 1
Page 1
Multiband (including) Communication Receivers
Multiband (including) Communication Receivers
These represents the higher quality radios that demand the best engineering designs. These radios receive Standard Broadcast 535-1710 KHz (depending on what country), General Shortwave Band (2-18 MHz), Communication Band (10, 15, 25, 40 and 80 meter) in CW and SSB, and may have FM, Citizen Band, VHF (2 meter) and others . These radios usually have a circuit scheme to decode or receive transmissions not practical with general coverage multiband radios. Controls like BFO, Crystal Filtering, Band Spread, Wide or Narrow Band selection, Phase Detection etc are part of these radios. These generally represent the most expensive of all radios $200 and up in 2010 dollars. In general, the more you pay the better the quality due to the radio's ability to lock in on signals and accurately reproduce it with optional enhancements to make listening easier.
Vintage Vacuum Tube Multiband Portable Receivers
Vintage Vacuum Tube Multiband Portable Receivers
Zenith Global Universal 6G004Y (1946)
RARE MODEL
Was an attempt to provide a less sophisticated companion to the Trans-oceanic 8G005 series, Has standard broadcast and 9.5 (31m) to 12.1 (25m) shortwave broadcast band. Uses 4 Locktal tubes 1LA6 Converter, 2-1LN5 RF and IF Amp and 1LH4, Det-Amp and two octal 3Q5GT Audio Output and 117Z6 Rectifier. Zenith over the years have attempted to put a lower price alternative to the Trans-oceanic, but often like the rare 6G004Y with poor sales results.
Front view of chassis. Notice the red battery shutter. This would alert the operator that the radio was on. Zenith tends to used deep and narrow chassis for a smaller footprint, making it hard to service.
Zenith Trans-oceanic L600 (1956).
Zenith's best multiband tube portable radio. Uses 5 tubes (1L6, Converter, 1U4, 2-1U5 and 3V4 Audio Output and a 50A1 regulator ballast tube. Has solid state selenium rectifier. Features band spread tuning for easier reception of shortwave broadcasts, automatic AC cord retractor and the only tube Trans-oceanic with luminated dial. Run on AC or Battery. The model continued until 1961 and replaced with the Royal 1000 Transistorized version,
ABOVE: Top view of electronics. I polished and sprayed clear gloss the chassis. Cleaned all contacts and firmly mounted the speaker. The original speaker was replaced and a similar sized one installed. The electrolytic can was overhauled before but I wanted to do it right to look original.
BELOW: All the capacitors were replaced when I got it. But resistor were not checked for tolerance, One power resistor and 4 1/4 watt units had to be replaced or modified. The radio used pre war rubber coated wire that becomes brittle in heated areas, so replace as needed.
BELOW: All the capacitors were replaced when I got it. But resistor were not checked for tolerance, One power resistor and 4 1/4 watt units had to be replaced or modified. The radio used pre war rubber coated wire that becomes brittle in heated areas, so replace as needed.
Vacuum Tube Communication type Receivers
Vacuum Tube Communication type Receivers
Hallicrafters SX-110 (1959-1961) $159.50 (1959) with R47 Speaker
The SX receivers have crystal IF filtering for improve selectivity in receiving SSB and crowded radio bands. An easy to use radio and fun to operate. Still uses octal based tubes when miniature tubes were the standard. Also SX receivers don't come with a built in speaker.
Night View
Circuit Board View.
Six tubes are used including a two Silicon Rectifiers for full wave rectification, 6BH6 RF Amp, 2 6BA6 IF Amps, 6EA8 Mixer and Osc, 12AT7 BFO and Product Detector, 6HF8 Audio and Power Amplifier. Four Germanium rectifiers for ANL and AVC are used.
Six tubes are used including a two Silicon Rectifiers for full wave rectification, 6BH6 RF Amp, 2 6BA6 IF Amps, 6EA8 Mixer and Osc, 12AT7 BFO and Product Detector, 6HF8 Audio and Power Amplifier. Four Germanium rectifiers for ANL and AVC are used.
Inside (uses pre WW2 metal tubes) Uses 2 6SG7 RF and IF Amp, 6SA7 Converter, 6SK7 IF Amp, 6SC7 Audio Amp and BFO, 6H6 Det, AVC and ANL, 6K6GT Power Amp and 6X5GT Full Wave Rectifier.
Heathkit GR-54 (1966-72)
Heathkit's last tube receiver. 6 Tubes and solid state transformer power supply and has product detector for SSB reception. Has feature that allows you to practice Morse Code with a telegraph key connection on the back. Is a single conversion receiver but uses a higher IF frequency. Overall a nice looking with a neat electronic components layout. Sad part, with all the nice things Heathkit put in, they made a terrible cost saving decision to simplify the standard broadcast band oscillator alignment resulting in inaccurate tuning at the band ends.
Cabinet Views
Vintage Solid State Analog Multiband Portables
Vintage Solid State Analog Multiband Portables
Competent quality radios good for dxing and shortwave listening
Sony ICF-7600A (1984-1988) $175
The ICF-7600 series spans about 30 years. Going from an analog to digital general coverage portable. A very compact and slim receiver. The ICF-7600A was Sony's best analog version of this series. Features dual conversion IF and bandspread tuning on SW bands. Unlike the Sony flagship ICF-2001 and 2010, this radio cannot receive SSB signals and lacks a wide band and narrow band filter for AM and SSB reception, making it more of a shortwave radio rather than a communications receiver.
Zenith Royal 94 Interoceanic (1967)
The Royal 94 is an 11 transistor FM/AM/ and 3 shortwave bands. This was below the top of the line Royal 3000 Transoceanic. Zenith multibands during this time did not receive SSB transmissions. Has AFC for FM and tone control.
Sony TFM-8000W (1970s)
Sony had a long running series of "Supersentive " portables that date back to the early 1960s. This model is all transistor (FET + 16 transistors), FM, AM, PSB and 3 SW bands. Has many upscale features for its time such as large tuning meter, fine tuning, FET RF front end, dial illumination, fly wheel tuning and auto battery/AC switch over.
ABOVE: Front panel side of components. WARNING: Sony glued the speaker to the front panel to provide some baffle. If you need to clean the switch contacts this can be a problem: BELOW: Back panel side of circuit board.
Vintage SOLID STATE Communication type Portables
Vintage SOLID STATE Communication type Portables
SONY ICF-2010 (1980-2003) $395
PLL Synthesize Receiver with Synchronous DetectionThis portable was considered by many SONY's best. This receiver took away the standard of long tradition of the Zenith Trans Oceanic Receivers. Can be used as a general coverage or communication receiver. The production run ran from 1980-2003. Highly collectible portable that still demands a high price.
Zenth D7000Y Trans Oceanic (1973-1979)
$ 300 (1973)
Considered by many the best Zenith Trans Oceanic and probably the best portable with analog tuning at that time. Zenith added wide and narrow band filtering for AM / SSB reception, tuning/battery meter and VHF band.
With Cover On
BOTH A TABLE AND PORTABLE
Kenwood QR-666 (1975). Analog Tuning Communication Receiver
Kenwood made many communication receivers. This model features built in telescope antenna or can use external, battery or AC power, 500 Khz marker generator for calibration, mechanical and ceramic filters for selectivity and FET front end for increased sensitivity. This model represents the peak and the beginning of the end of analog tune communication receivers.
Front panel lit for evening use
Backside of the receiver showing telescope antenna, externalantenna. Has connector for 13.8V car operation. Has accessfor alignment of RF section.
Underneath showing one of the three circuit boards and thebattery holder. Uses 6 D cells for portable operation.
ABOVE: Top view of chassis. BELOW: Underneath chassis
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