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<th valign="BASELINE" nowrap="nowrap" align="RIGHT">Subject:
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<td>Re: [Heath] Fwd: Final transistors for SB 104A</td>
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<th valign="BASELINE" nowrap="nowrap" align="RIGHT">Date: </th>
<td>Wed, 22 Sep 2021 12:56:01 -0700</td>
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<th valign="BASELINE" nowrap="nowrap" align="RIGHT">From: </th>
<td>Chris Iwata <a class="moz-txt-link-rfc2396E" href="mailto:chrisiwata@aol.com"><chrisiwata@aol.com></a></td>
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<th valign="BASELINE" nowrap="nowrap" align="RIGHT">To: </th>
<td><a class="moz-txt-link-abbreviated" href="mailto:ka9dzr@aol.com">ka9dzr@aol.com</a></td>
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<p>If you luck out and find some, bear in mind that you have to
buy matched pairs.</p>
<p>Theoretically, you have to buy matched quads. But you can
probably be OK with matched pairs</p>
<p>Expect to pay a premium, those stud mount RF transistors
haven't been made for at least 20 years. A guess would be at
least $50 each<br>
</p>
<p>Your best bet is to buy a junked SB104</p>
<p>The SB104 will become unrestorable due to unavailability of the
Final transistors, the Nixie tubes, the Nixie driver IC, and the
voltage regulator IC. <br>
</p>
<p>Chris, KL7DM</p>
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<div class="moz-cite-prefix">On 9/22/2021 10:18 AM, ka9dzr--- via
Heath wrote:<br>
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cite="mid:1594945898.727688.1632331087370@mail.yahoo.com">
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<div><span style="font-family: arial, helvetica, sans-serif;
font-size: 10pt; color: #000000;"> </span></div>
<div><span style="font-family: arial, helvetica, sans-serif;
font-size: 10pt; color: #000000;">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: blue 2px solid;">
<hr><span style="background-color: transparent; color:
#000000; font-family: Arial; font-size: small;"><span
style="background-color: transparent; color: #000000;
font-family: Arial; font-size: small;">From: <a
class="moz-txt-link-abbreviated"
href="mailto:heath@puck.nether.net"
moz-do-not-send="true">heath@puck.nether.net</a><br>
To: <a class="moz-txt-link-abbreviated"
href="mailto:heath@puck.nether.net"
moz-do-not-send="true">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>
<div dir="ltr"> </div>
<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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<pre class="moz-quote-pre" wrap="">_______________________________________________
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