<div dir="ltr">Thank you for the information, but unfortunately, it was hard to find a replacement from the vendors or at eBay. They were expensive, but sellers did not know anything about matched pairs or quad. There is one dealer that sells matched quad for my transceiver. They cost over $400 ($100 each). My concern is I pay one vendor $41.10 each. It will not be possible to match each other. Secondly, if they require a pair, it will be easy to find a match, but quad will be harder to match. The same situation with Emiac tubes has to match to provide effective transmitting power.<div><br></div><div>Steven</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Sep 22, 2021 at 3:45 PM James Owen via Heath <<a href="mailto:heath@puck.nether.net">heath@puck.nether.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div style="font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:16px"><div><div dir="ltr">Try these links. You might luck out.<br></div><div dir="ltr"><a href="http://www.advancedsemiconductor.com/transistors/2N/2N6456.shtml" rel="nofollow" target="_blank">2N6456</a></div><div><br></div><div id="gmail-m_-2420651357026971803ydp82f410ddenhancr_card_3098446338" style="max-width:400px;font-family:YahooSans,"Helvetica Neue","Segoe UI",Helvetica,Arial,sans-serif"><a href="http://www.advancedsemiconductor.com/transistors/2N/2N6456.shtml" style="text-decoration-line:none;text-decoration-style:solid;text-decoration-color:currentcolor;color:rgb(0,0,0)" rel="nofollow" target="_blank"><table style="max-width:400px" cellspacing="0" cellpadding="0" border="0"><tbody><tr><td width="400"><table style="max-width:400px;border-width:1px;border-style:solid;border-color:rgb(224,228,233);border-radius:2px" width="100%" cellspacing="0" cellpadding="0" border="0"><tbody><tr><td style="background-color:rgb(0,0,0);background-repeat:no-repeat;background-size:cover;border-radius:2px 2px 0px 0px;min-height:175px" valign="top" height="175" bgcolor="#000000"><table style="width:100%" cellspacing="0" cellpadding="0" border="0"><tbody><tr><td style="background-color:transparent;border-radius:2px 2px 0px 0px;min-height:175px" valign="top" bgcolor="transparent"><table style="width:100%;min-height:175px" height="175" border="0"><tbody><tr><td style="text-align:left;padding:15px 0px 0px 15px;vertical-align:top"></td><td style="text-align:right;padding:15px 15px 0px 0px;vertical-align:top"><div></div></td></tr></tbody></table></td></tr></tbody></table></td></tr><tr><td><table style="background-color:rgb(255,255,255);background-repeat:repeat;background-image:none;background-size:auto;width:100%;max-width:400px;border-radius:0px 0px 2px 2px;border-top:1px solid rgb(224,228,233)" cellspacing="0" cellpadding="0" border="0" align="center"><tbody><tr><td style="background-color:rgb(255,255,255);padding:16px 0px 16px 12px;vertical-align:top;border-radius:0px 0px 0px 2px"></td><td style="vertical-align:middle;padding:12px 24px 16px 12px;width:99%;font-family:YahooSans,"Helvetica Neue","Segoe UI",Helvetica,Arial,sans-serif;border-radius:0px 0px 2px"><h2 style="font-size:14px;line-height:19px;margin:0px 0px 6px;font-family:YahooSans,"Helvetica Neue","Segoe UI",Helvetica,Arial,sans-serif;color:rgb(38,40,42);max-width:314px">2N6456</h2><p style="font-size:12px;line-height:16px;margin:0px;color:rgb(151,155,167)">Advanced Semiconductor, Inc., supplies RF power transistors and microwave diodes, replacing transistors from Mot...</p></td></tr></tbody></table></td></tr></tbody></table></td></tr></tbody></table></a><div style="width:100%;height:100%;display:flex;background-color:rgba(255,255,255,0.3)"><div><div><u></u><u></u><u></u><u></u><u></u><u></u></div></div></div></div></div><div><div dir="ltr"><a href="http://www.buy-transistors.com/transistors/2n6456.html" rel="nofollow" target="_blank">2N6456 Transistors - 7 in stock to buy, photo, pdf datasheet, rfq, obsolete</a></div><div><br></div><div id="gmail-m_-2420651357026971803ydpdf77a678enhancr_card_2549573669" style="max-width:400px;font-family:YahooSans,"Helvetica Neue","Segoe UI",Helvetica,Arial,sans-serif"><a href="http://www.buy-transistors.com/transistors/2n6456.html" style="text-decoration-line:none;text-decoration-style:solid;text-decoration-color:currentcolor;color:rgb(0,0,0)" rel="nofollow" target="_blank"><table style="max-width:400px" cellspacing="0" cellpadding="0" border="0"><tbody><tr><td width="400"><table style="max-width:400px;border-width:1px;border-style:solid;border-color:rgb(224,228,233);border-radius:2px" width="100%" cellspacing="0" cellpadding="0" border="0"><tbody><tr><td><table style="background-color:rgb(255,255,255);background-repeat:repeat;background-image:none;background-size:auto;width:100%;max-width:400px;border-radius:0px 0px 2px 2px;border-top:1px solid rgb(224,228,233)" cellspacing="0" cellpadding="0" border="0"><tbody><tr><td style="background-color:rgb(255,255,255);padding:16px 0px 16px 12px;vertical-align:top;border-radius:0px 0px 0px 2px"></td><td style="vertical-align:middle;padding:12px 24px 16px 12px;width:99%;font-family:YahooSans,"Helvetica Neue","Segoe UI",Helvetica,Arial,sans-serif;border-radius:0px 0px 2px"><h2 style="font-size:14px;line-height:19px;margin:0px 0px 6px;font-family:YahooSans,"Helvetica Neue","Segoe UI",Helvetica,Arial,sans-serif;color:rgb(38,40,42);max-width:314px">2N6456 Transistors - 7 in stock to buy, photo, pdf datasheet, rfq, obsolete</h2><p style="font-size:12px;line-height:16px;margin:0px;color:rgb(151,155,167)">2N6456 Transistor 2N6456 TRW Helicopter Gold</p></td></tr></tbody></table></td></tr></tbody></table></td></tr></tbody></table></a></div><div><br></div><div><br></div><div><br></div><div><br></div><div>James C. Owen, III K4CGY</div></div>
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On Wednesday, September 22, 2021, 02:22:26 PM EDT, ka9dzr--- via Heath <<a href="mailto:heath@puck.nether.net" target="_blank">heath@puck.nether.net</a>> wrote:
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<div><span style="font-family:arial,helvetica,sans-serif;font-size:10pt;color:rgb(0,0,0)">has anyone fine any replacement finals for the sb-104a yet tnx ka9dzr Dennis</span></div>
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<blockquote style="padding-left:5px;margin-left:5px;border-left:2px solid blue"><hr><span style="background-color:transparent;color:rgb(0,0,0);font-family:Arial;font-size:small"><span style="background-color:transparent;color:rgb(0,0,0);font-family:Arial;font-size:small">From: <a href="mailto:heath@puck.nether.net" target="_blank">heath@puck.nether.net</a><br>To: <a href="mailto:heath@puck.nether.net" target="_blank">heath@puck.nether.net</a><br>Sent: 11/24/2014 4:56:23 PM Central Standard Time<br>Subject: [Heath] Final transistors for SB 104A<br><br></span></span>
<div dir="ltr">I have learned that the 2n6456 final RF transistors are no longer available and I NEED to replace the four (4) in a Heath SB 104A. Has anyone found a suitable replacement transistor for this application? I have thoroughly checked with RF Parts and they no longer stock those transistors.</div>
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<div dir="ltr">Does anyone have experience substituting the final transistors in the SB 104A? If so what did you use as a replacement and do you know where they can be found? Thanks and 73, John, K5PGW</div>
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