HW-101: More Mods recovered.

Joseph W Lutz joelutz at JUNO.COM
Tue Dec 8 19:32:32 EST 1998


Found a 18 year-old letter from a John Benson that was sent to me while I
was operating from /DU2 with my HW-101 [and making many friends].  It
contains the following Mods that John had made on his HW-101:

1.  Tubes               -       V10 and V11 - changed to 6HS6 from
                        6AU6.

2.  R113                -       Screen circuit of V4.  Change to 4700 or
                        10,000 ohms to improve IF response.

3.  R106                -       Screen of V3.  Change to 33,000 ohm 1
                        Watt.  Prevents "S" meter drift.

4.  R107                -       Screen of V3.  Change to 100,000 ohm 1
                        Watt.  Prevents "S" meter drift.

5.  Pilot Lamps -       Should by #47 - not #44 lamps.

6.  R202                -       Grid circuit of V5.  Remove and replace
                        with a jumper wire to improve transmit
                        drive, especially on 40 meters.

7.  Comb Brackets       -       Used to position the switch boards.
                        These brackets were aluminum, are now
                        plated steel - [PN 204-2096].  Brackets
                        should be soldered to the circuit board
                        shields and to the outside corner [side
                        rail side] at the driver grid and driver
                        plate boards.  This improves grounding
                        for the driver circuity.
- - - - - - - - - - - -

73 de Joe  W7LPF/4  [NNN0KUU]
QWCA - SOWP - NCVA - FISTS - RCC
Gordonsville, Va 22942 [Orange Co]

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