<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue-Light, Helvetica Neue Light, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div dir="ltr" id="yui_3_16_0_1_1418844637317_15498"><span id="yui_3_16_0_1_1418844637317_15497">Sorry to take so long to answer! Was in the hospital for a few days!</span></div><div dir="ltr" id="yui_3_16_0_1_1418844637317_15223"><span><br></span></div><div dir="ltr" id="yui_3_16_0_1_1418844637317_14984"><span id="yui_3_16_0_1_1418844637317_14986">The 3-interconnect cables for HFO, BFO, and LMO, in the SB-40X and SB-30X equipment are made from RG62/U cable, 24-inches long. RG62/U is 93-ohm cable and has very low capacitance when compared with RG58/U or RG59/U cable.</span></div><div dir="ltr" id="yui_3_16_0_1_1418844637317_14984"><span><br></span></div><div dir="ltr" id="yui_3_16_0_1_1418844637317_14984"><span id="yui_3_16_0_1_1418844637317_15221">I can make interconnect cables although need to replenish my RG62/U cable stock.</span></div><div dir="ltr" id="yui_3_16_0_1_1418844637317_14984"><span><br></span></div><div dir="ltr" id="yui_3_16_0_1_1418844637317_14984"><span id="yui_3_16_0_1_1418844637317_15226">Details at:</span></div><div dir="ltr" id="yui_3_16_0_1_1418844637317_14984"><span><br></span></div><div dir="ltr" id="yui_3_16_0_1_1418844637317_14984"><span id="yui_3_16_0_1_1418844637317_15234"><a href="http://nebula.wsimg.com/ad2c0bf4bd9785bfb1dd5ba5e06e5668?AccessKeyId=5DDC3F25F0398F58962E&disposition=0&alloworigin=1" id="yui_3_16_0_1_1418844637317_15233">http://nebula.wsimg.com/ad2c0bf4bd9785bfb1dd5ba5e06e5668?AccessKeyId=5DDC3F25F0398F58962E&disposition=0&alloworigin=1</a><br></span></div><div dir="ltr" id="yui_3_16_0_1_1418844637317_14984"><br></div><div></div><div id="yui_3_16_0_1_1418844637317_14982">Glen, K9STH <br></div><div id="yui_3_16_0_1_1418844637317_14966"><div id="yui_3_16_0_1_1418844637317_14965">
<br>Website: http://k9sth.net</div></div><br> <div style="font-family: HelveticaNeue-Light, Helvetica Neue Light, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_1_1418844637317_14992"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_1_1418844637317_14991"> <div dir="ltr" id="yui_3_16_0_1_1418844637317_14990"> <hr size="1"> <font size="2" face="Arial" id="yui_3_16_0_1_1418844637317_15219"> <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 id="yui_3_16_0_1_1418844637317_15218"><span style="font-weight: bold;" id="yui_3_16_0_1_1418844637317_15217">Sent:</span></b> Sunday, December 14, 2014 12:48 PM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [Heath] Heath SB 300 series receivers<br> </font> </div> <div class="y_msg_container" id="yui_3_16_0_1_1418844637317_14994"><br>On 13 Dec 2014 at 14:08, John King via Heath wrote:<br><br>> Howdy Greenies!! I have a Heath SB 400 and a SB 401 transmitter, but I do not<br>> have matching receivers that will transceive with the transmitters. Which Heath<br>> SB receivers will transceive with those transmitters? I know there were SB 300,<br>> SB301 and SB 313 receivers but am not sure if they will all transceive with the<br>> SB 400 and SB 401 transmitters.<br><br>Yes, as I remember it, ALL of the above will transceive with either of the two <br>transmitters mentioned.<br><br>I have a 301/401 combo here, which I really like. The 301 can use some <br>"enhancements" such as voltage regulation added to the BFO and HFO, but <br>these are "trivial" mods.<br><br>The only thing I had to do to my '401 was to paint the "silver" tube shields <br>over various tubes, inside and outside with flat black paint. This reduced the <br>tube-heat by 17%.<br><br>Also, don't forget that the systems were designed to use ONLY 68 (?) ohm <br>coax to connect the various bits, and NOT 50 or 75 ohm coax, AND those <br>must be of a certain length due to the capacitance needed in the circuit.<br><br>I believe Glenn Zook used to sell the necessary cables all made up in a <br>bundle. Maybe he still does. He is a "denizen" here and may answer himself.<br><br>Ken W7EKB<br>_______________________________________________<br><br></div> </div> </div> </div></body></html>