Heathkit SB-101 - Ah.1.67.Hw-101-63: VOX Delay too Short; Ah.1.68.Hw-101-64: Load Control Squeaks with the HW-101-30 Mod Installed; Ah.1.69.Hw-101-65: CW Sidetone Inoperative; Ah.1.70.Hw-101-66: Rotary Switch Detent Change

C331 .01 uF ceramic disk
capacitor
21-16
C332 thru C336 470 pF mica capacitor 20-128
R341 thru R346 470 kilo Ohm, 1/2 watt
resistor
1-33
Phase shift circuit board 85-2138-1
“F” connector (3 qty.) 432-734
ah.1.67. HW-101-63: VOX Delay Too Short
AUGUST 12, 1980
HW-101 BULLETIN NO: SSB TRANSCEIVER HW-101-63
Change: C213 from a .2 uF capacitor to a .47 uF capacitor [PN 27-61].
ah.1.68. HW-101-64: Load Control Squeaks with the HW-101-30 Mod Installed
AUGUST 13, 1980
HW-101 BULLETIN NO: SSB TRANSCEIVER HW-101-64
Install a 1/4” flat fiber washer [PN 253-62] between the grommet and the RF cage.
Make this change only to units with the modification described in Bulletin No. HW-101-
30.
ah.1.69. HW-101-65: CW Sidetone Inoperative
AUGUST 21, 1980
HW-101 BULLETIN NO: SSB TRANSCEIVER HW-101-65
This problem will occur only in units that use the phase shift circuit board in place of the
PEC (see Bulletin HW-101-62, dated June 20, 1980).
ah.1.70. HW-101-66: Rotary Switch Detent Change
NOVEMBER 4, 1980
HW-101 BULLETIN NO: SSB TRANSCEIVER HW-101-66
The [PN 266-85] rotary switch detents are being replaced with [PN 266-1116] detents.
The new detents [PN 266-1116] are directly interchangeable with the old ones.
Continue to use the old detents as replacements until Parts Department’s stock is
depleted.
HW-101 Service Bulletins Page 154