<html><head></head><body><div style="color:#000; background-color:#fff; font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div><span>There is one thing about the Mohawk that is misunderstood, and often improperly used, is the fact that there is a 3rd gain control. In addition to the "normal" audio gain (volume) control and the "R.F. Gain" control, there is the I.F. gain control. Getting that control properly adjusted requires a "bit" of experience with how the receiver actually works.</span></div><div id="yui_3_16_0_ym19_1_1540228804880_5704"><span><br></span></div><div id="yui_3_16_0_ym19_1_1540228804880_5704"><span><br></span></div><div></div><div id="yui_3_16_0_ym19_1_1540228804880_5655"> </div><div class="signature" id="yui_3_16_0_ym19_1_1540228804880_5614">Glen, K9STH </div><div class="signature" id="yui_3_16_0_ym19_1_1540228804880_5614"><br></div><div class="signature" id="yui_3_16_0_ym19_1_1540228804880_5614">Website: http://k9sth.net</div><div class="qtdSeparateBR" id="yui_3_16_0_ym19_1_1540228804880_5575"><br><br></div><div class="yahoo_quoted" id="yui_3_16_0_ym19_1_1540228804880_5738" style="display: block;"> <div style="font-family: Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_ym19_1_1540228804880_5737"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_ym19_1_1540228804880_5736"> <div dir="ltr"> <font size="2" face="Arial"> <hr size="1"> <b><span style="font-weight:bold;">From:</span></b> Kenneth G. Gordon <kgordon2006@frontier.com><br> <b><span style="font-weight: bold;">To:</span></b> John King via Heath <heath@puck.nether.net> <br> <b><span style="font-weight: bold;">Sent:</span></b> Monday, October 22, 2018 11:18 AM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [Heath] Mistake in my question to lists<br> </font> </div> <div class="y_msg_container" id="yui_3_16_0_ym19_1_1540228804880_5735"><br><div dir="ltr">On 22 Oct 2018 at 0:28, John King via Heath wrote:<br></div><div dir="ltr"><br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1540228804880_5734">> I apologize for saying Apache. The BFO question has to do with my<br></div><div dir="ltr">> Mohawk. Thanks to Brian for catching my error. <br></div><div dir="ltr"><br></div><div dir="ltr">No need to apologize: we are all human and make mistakes. That particular mistake is a <br></div><div dir="ltr">very small one. :-)<br></div><div dir="ltr"><br></div><div dir="ltr">> I was very tired from working on the Mohawk all day.<br></div><div dir="ltr"><br></div><div dir="ltr">Neat! I've always thought the Mohawk was a very interesting receiver, and always wanted <br></div><div dir="ltr">one. <br></div><div dir="ltr"><br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1540228804880_5740">It has a HUGE amount of "potential" as far as I am concerned. <br></div><div dir="ltr"><br></div><div dir="ltr">I believe the Mohawk was Heath's first attempt at a competitive ham band receiver, and <br></div><div dir="ltr">although they made some very significant mistakes in its electronic design, I have always <br></div><div dir="ltr">felt that using the knowledge we have learned since then, that it could fairly easily be made <br></div><div dir="ltr">into a first class receiver.<br></div><div dir="ltr"><br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1540228804880_5741">At least it is big enough that one can get ones hands into it. :-)<br></div><div dir="ltr"><br></div><div dir="ltr">> I guess I am too old for that lengthy attempt to concentrate.' <br></div><div dir="ltr"><br></div><div dir="ltr">Ha ha! No. You're not. I'm 76 and love working on these sorts of equipment.<br></div><div dir="ltr"><br></div><div dir="ltr">> The receiver is a MOHAWK. 73, John, L5PGW<br></div><div dir="ltr"><br></div><div dir="ltr">Yup. Got it. Mohawk.<br></div><div dir="ltr"><br></div><div dir="ltr">Have you had a chance to look at the Bonomo upgrades to the Mohawk? <br></div><div dir="ltr"><br></div><div dir="ltr">They were quite extensive. The early ones were published in Electric Radio Magazine <br></div><div dir="ltr">(www.ermag.com), and he followed those up with some further ones in some magazine <br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1540228804880_5742">headquartered in California.<br></div><div dir="ltr"><br></div><div dir="ltr">Although he did some amazing upgrades to the Mohawk, I would have done some things a <br></div><div dir="ltr">bit differently than he did. <br></div><div dir="ltr"><br></div><div dir="ltr">For one thing, I have a particular liking for the so-called "Pullen" mixer....which is seldom <br></div><div dir="ltr">implemented totally correctly. (<a href="http://www.w7ekb.com/glowbugs/rx/receivers.htm," target="_blank">http://www.w7ekb.com/glowbugs/rx/receivers.htm, </a>9) The <br></div><div dir="ltr">Pullen Mixer.)<br></div><div dir="ltr"><br></div><div dir="ltr">And there have recently been some other articles on the Mohawk in ER Mag, authored by <br></div><div dir="ltr">another fellow who found a rather odd thing about the first mixer stage, at least in his <br></div><div dir="ltr">Mohawk.<br></div><div dir="ltr"><br></div><div dir="ltr">And there was another short article on significantly improving the AGC system in the <br></div><div dir="ltr">Mohawk a few months ago in ER Mag.<br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1540228804880_5743"><br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1540228804880_5756">Please keep us informed of your progress (or lack of it) and your experiiences with your <br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1540228804880_5757">Mohawk. I am certain that there are others here who would be very interested, as I am.<br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1540228804880_5758"><br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1540228804880_5759">vy 73 for now.<br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1540228804880_5760"><br></div><div dir="ltr" id="yui_3_16_0_ym19_1_1540228804880_5761"><br></div></div> </div> </div> </div></div></body></html>