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Last modified 2023-01-28

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Drake T-4B

A picture of Drake T-4B

SPECIFICATIONS

GENERAL
Type:Amateur HF transmitter/"reciter"
Frequency range:10-80 m
Tuning steps:Continuous (Coupled to R-4B)
Frequency stability:? ppm
Mode:AM / SSB / CW
Channels / memory management:
Power supply:650 V, 250 V, -45 to -65 V and 12.6 V from separate PSU
Current drain / power consumption:Max 330 mA @ 650 V
Max 120 mA @ 250 V
Max 3 A @ 12.6 V
Antenna impedance / connector:52 ohm nominal / SO-239
Dimensions (W*H*D):273*140*295 mm (10.75*5.5*11.62")
Weight:5.64 Kg (12.44 lb)
Other features:VOX. Built-in speaker for R-4B.




TRANSMITTER SECTION
RF output power:

Max pwr
AM:~120 W (200 W input)
SSB (PEP):~120 W (200 W input)
CW (DC):~120 W (200 W input)
Modulation system:
Max FM deviation (Factory set):No FM
Spurious emissions:Better than -? dB
Microphone impedance / connector:Hi-Z / ?-pin
Microphone input level:? mV




MISCELLANEOUS
Manufactured:USA, 196x-196x (Discontinued)
Additional info:
Related documents: User manual (4.9 MB)
RF finals: Two 6JB6
Modifications and fixes:
Reviews:
Options / Accessories:
AC-4
DC-4
Mains power supply
12 VDC power supply