I have one fixed
operating position that is not located in my basement
"shack". This is in my family room and it
is housed around what was once a computer
desk. Over the years both my wife and I have
gone to laptops for our computing needs around
the house and access the internet via WiFi
connection. The only desktop or work station
computers I now use are in my basement radio shack and
in my lab area. The computer that was occupying
this desk saw very little use and as a result the desk
became a resting place for other junk
items. After performing upgrades to my
Drake TR7 HF transceiver I decided to utilize this old
computer desk as a new operating position.
The computer desk was much to nice to relegate as a
unused area for junk collecting.
The station consists of a Drake TR7 HF transceiver with matching MS-7 Speaker (circa 1980) with extensive modification added. The original transmit/receive crystal filter was changed from the original 2.3KHz BW to a new Sherwood Engineering 2.85KHz BW Enhanced SSB filter. The SSB carrier offset adjustments must be changed, from those indicated in the service manual, to take advantage of the wider audio passband presented by the new filter. All the remaining receive mode filters are also installed for CW, Narrow SSB and AM. In addition a multicolor frequency display, blue LED back lighting, fully populated AUX-7 unit and the X-Lock frequency stabilizer were installed. The X-Lock operation status LED was added to a newly created reverse scaled back-lit meter. Circuit modifications were performed to improve the receive audio and finally multi-turn potentiometers replacements have been added to the power supply board for enhanced alignment stability. On the right side of the desk is the Hallicrafters SR-150 80-10M SSB/CW transceiver with its matching SP-150 PS/Speaker (circa 1962). The power supply was recently recapped (2025) and few parts replaced in the transceiver. I am only the second owner of this transceiver! A Closeup of the
Hallicrafter SR-150
Click on Image for Enlarged View & Click Back Arrow to Return The remaining items consist of an LDG AT-200Pro Autotuner, used for both rigs, and the Timewave DSP-59+ Audio DSP on the TR7 only. Above the operating table, on the top shelves, are two items from my vintage radio collection. The lower item is a Lafayette "Wideworld Receiver", A.K.A. a National SW-5 variant ( circa 1930) and above that the RCA 100A speaker. Both of these are fully operational! |