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Heathkit TX-1 'Apache'

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Desktop Shortwave Transmitter

The "Apache" operates with 150 watt phone input and 180 watt CW input on 80 through 10 meters and features chassis provision for plug-in connection of the Heathkit SB-10 SSB adapter. A specially-designed VFO provides minimum drift frequency control necessary for SSB transmission. The illuminated, rotating slide-rule VFO dial with full gear drive vernier tuning provides ample bandspread for accurate frequency settings. Each amateur band is separately calibrated on the rotating slide-rule dial for maximum accuracy. Also featured in the "Apache" is adjustable low-level speech clipping and a low distortion modulator stage employing two 6CA7/EL34 tubes in push-pull class AB operation. Time sequence keying is provided for "chirpless" break-in CW operation. A "spotting" push button allows tuning of the transmitter before switching on the final amplifier and also enables the operator to "zero beat" an incoming signal without placing the transmitter on-the-air. The final amplifier is extensively shielded for maximum TVI protection and is neutralized for high stability. Pi network output coupling provides smooth loading into antenna impedances of 50 to 72 ohms.

See also the companion receiver, the Heathkit RX-1 "Mohawk"

Specifications
Type
Desktop Amateur HF Transmitter 
Frequency range RX
TX
10-80 m 
Frequency stability
Tuning steps
Filters
Receiver
Modulations
Sensitivity
Selectivity
Receiver system
IF-frequencies
Image rejection
Audio output
100 watts at 300-3000 cycle (Adjustable low-level speech clipping; 500 ohm output available) 
Transmitter
Modulations
AM / CW / SSB 
RF-output
AM: 150 W, SSB/CW: 180 W 
Connections
Antenna
Impedance
50-72Ω 
Electrical
Power requirements
Mains 
Current drain RX
TX
500 W peak 
Physical
Dimensions (w×h×d)
495 × 295 × 406 mm (19.49 × 11.61 × 15.98 in)  
Weight
Form factor
Desktop 
Manufactured
Between 1959 and 196x in USA 
Other features
Memories
Usage
Amateur / Ham radio operators 
Manufacturer
Heathkit 
Model
TX-1 'Apache'
Features
 
Manuals, Diagrams and Brochures
 
None available  
 
 
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