The backup battery tests 3.3 Volts.
The A.C. power supply needs to be repaired.
|The screws holding the near
end of the incudtor stick came loose.
The two wires closest to the near end were broken at their solder
connections and have been repaired.
The PCB and 3 large can hold down screws (as well as the 4 inductor
stick bracket) screws were removed and reinstalled using
|Removing the large screws
from the top panel
|lifting up the AC power
J2 DC 4-pin connector
A & B
C & D
|Inside the AC Power Supply
TWC 738168 Rev. A
W/.O 3514 Rev. B
ECN. 001 Seq. 01
||680 uF 250WV||677
||3900 uF 16 VDC||9600
uF 16 VDC
uF 35 VDC
uF 16 VDC
||470 uF 35 VDC||455
uF 16 VDC
Replacement for D310050: SD1487
Substitute transistors: MRF422 or SRF3503P
This is a table top HF transceiver. Note there is no provision to tune to a frequency, the radio only has channels.
Pressing "C" then two digits sets the radio to that channel.
Pressing "F" displays the frequency of the current channel.
Fig 1 Front
It's not clear if the 1/4" jack is for a mike or speaker.
Fig 2 Label
Fig 3 Rear
It's not clear what the purpose or pinout is of the DB-9 connectors:
and Moxex connector (model No.?) for 13.6 VDC power.
Fig 4 Audio Connectors
Mike 4-Pin Connector to make cable:
Mouser Part Number: 502-09CL4MX
Fair Radio Item 8817
Adapter Cable: TW100UL - U229
Fig 5 Top Inside
Fig 6 Bottom Inside
The memory coin cell battery is at 3.043 V which is like new.
TW100 Microprocessor Controlled HF SSB Transceiver Operators Manual, Publication #990139, December 1984
Got a GM Delco mobile mike from Fair Radio in the hopes it would fit one of these radios, but alas it does not fit either of them.
The connector has 5 male pins.
The OD of the black mating tube is 0.519 and it's ID is 0.437"
Connector Pin Out
Vio & Gry: PTT
Harris RF 3200ET Fly Away H.F. Radio
TW7000F Flyaway HF Tranceiver
ICOM IC706 Mk II G
page created 29 Feb 2012.