Dak Mark X SSB CB Radio Vintage 1978
Dak Mark X AM/USB/LSB CB Radio Vintage 1978-1979 year
This is a Dak Mark X SSB CB radio that I acquired along with a few other base station CB radios from the 1970's era. I could not pass up the deal. This radio was not working when I powered it up. I was able to trace the problem to a cold solder joint on the board with the help of the schematic diagram that thankfully came with the radio along with the alignment instructions. I don't think this is really a great preforming radio but it sure looks great and is fun to have sitting in the shack.
Vacum tube used is the 6L6GC.
VIDEO AVAILBLE HERE https://youtu.be/FsitG2oWYEs
Pictured left DAK MARK X 300W LINEAR POWER AMPLIFIER and Dak Mark X SSB CB transceiver radio from 1978-1979 with two AM/SSB 40 channel output electronic tubes.
DAK Mark IX Radiotelephone is a vintage base station CB radio that operates on the 40-channel citizens band frequency. Manufactured by DAK in the 1970s, it was a popular and reliable radio system.
Key Features
- Type: Base station radio transceiver.
- Channels: 40 channels.
- Frequency Band: Operates on the 27-Mhz CB band.
- Power Requirement: Requires 120 VAC power.
- Technology: Incorporates a frequency synthesizer circuit with phase-lock loop for precise channel control.
- Features: Often included features like an Automatic Noise Limiter (ANL).
- Era: Popular in the 1970s and 1980s.
Collectibility
The DAK Mark IX is considered a classic item among radio communication enthusiasts and collectors. Due to its age, units found today are typically pre-owned and their condition can vary from fully operational to needing repair or restoration.
Future Rudolf Bošnjak - E71RB, Sarajevo, Bosnia and Herzegovina...
SPECIFICATIONS
| GENERAL | |||
| Type: | Citizen band transceiver | ||
| Frequency range: | 26.965-27.405 MHz | ||
| Channels / tuning steps: | 40 | ||
| Mode: | AM / SSB | ||
| Frequency control: | PLL (MC145109) | ||
| Frequency stability: | ?% | ||
| Clarifier or Delta tune: | ±600 Hz | ||
| Power supply: | Mains: 105-120 VAC (Fixed power cord) | ||
| Current drain / power consumption: | RX: ? W TX: ? W |
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| Antenna impedance / connector: | 50 ohm / SO-239 | ||
| Dimensions (W*H*D): | ? mm (?") | ||
| Weight: | ? Kg (? lb) | ||
| Other features: | ANL/NB. SWR meter. Fast/slow AGC. | ||
| RECEIVER SECTION | |||
| Receiver system: | Single conversion superheterodyne (SSB) IF: 10.695 MHz Double conversion superheterodyne (AM) 1st IF: 10.695 MHz 2nd IF: 455 KHz |
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| Sensitivity: | AM: 1 uV (10 dB S/N) SSB: 0.25 uV (10 dB S/N) |
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| Selectivity: | AM: 6 KHz (-6 dB) SSB: 2.4 KHz (-6 dB) |
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| Image rejection: | |||
| AF output power / speaker: | 3 W at ?% distortion / 8 ohm | ||
| External speaker connector: | 1/4" | ||
| TRANSMITTER SECTION | |||
| RF output power: | AM: 4 W SSB: 12 W (PEP) |
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| Modulation system: | AM: High level pushpull modulator SSB: Double balanced modulator with crystal lattice filter |
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| FM deviation (Factory set): | No FM | ||
| Spurious emissions: | Better than -60 dB | ||
| Microphone impedance / connector: | ? ohm / 4-pin (Metal locking ring connector) | ||
| Microphone input level: | ? mV | ||
| MISCELLANEOUS | |||
| Manufactured: | Korea, 1978-197x (Discontinued) | ||
| Main PCB: | DT-219M (Cybernet clone) | ||
| Sub PCBs: | |||
| Additional info: | A large and unusual tube hybrid | ||
| Related documents: |
User manual (8.2 MB) PLL: MC145109 |
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| Sams Photofact #: | CB-276 (October 1979) | ||
| Modifications and fixes: | |||
| Reviews: | |||
| Options / Accessories: |
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