Heathkit_HW-16_user.pdf

《Heathkit_HW-16_user.pdf》由会员分享，可在线阅读，更多相关《Heathkit_HW-16_user.pdf（39页珍藏版）》请在收音机爱好者资料库上搜索。

1、 Heathkit_HW-16_svc-bul.txt September 26, 1968 HW-16 Novice Transmitter Bulletin No: HW-16-1 Side Tone When using the HW-16 with a VFO sometimes a partial operation of the sidetone oscillator takes place due to an increased loading on the bias voltage. This can be corrected by changing R-69 from a 1

2、20K ohm resistor to a 220K ohm resistor PN 1-29. Also, the original schematic shows R-16 as a 4700 ohm resistor which is incorrect. R-16 should be shown as a 5600 ohm resistor. - September 9, 1971 HW-16 Novice Transmitter Bulletin No: HW-16-2 Resistor Failure Due to repeat failure of a resistor in the field, the following change should be made in all units being serviced: CHANGE: R21 22K 1 Watt to 2 Watt PN 1-11-2. Pagina 1