[Amps] Alpha 87A/89 PIN Diodes - UM4006D

Charlie Young weeksmgr at hotmail.com
Sat Feb 11 12:18:15 EST 2017


Paul, thanks for the heads up. I just ordered 4 to have replacements in case one of the 87A amps owned by several of my close friends loses a diode.


One of these 87A's is heading to my QTH now with an unknown  issue, but I have not seen it yet.  It should be here next week.  No one has been into this amp, as far as I know.


73 Charlie N8RR


________________________________
From: Amps <amps-bounces at contesting.com> on behalf of Paul Christensen <w9ac at arrl.net>
Sent: Saturday, February 11, 2017 9:51 AM
To: 'Amps Amps'
Subject: [Amps] Alpha 87A/89 PIN Diodes - UM4006D

Jerry, NY2KW, posted the message below to the Alpha 87A list on Yahoo:

> "I just found out that Verical (division of Arrow Eletronics) is selling
the Microsemi brand of the UM4006D for only $30 each.   When I last bought a
pair they were almost twice that price and they had thousands in stock, now
they have only ~ 240 left.  If you ever wanted to stock up now is the time
before they run out.  I called Microsemi a few years back and they were not
sure if they would manufacture more. Verical has a minimum order of three so
you may want to partner up if you needs only 1 or 2."

That's a great find for only $30 ea. in the "D" case style - and from a
reputable semiconductor supplier.  I just ordered a half-dozen.  Shipping
was only $4.00 USPS first class rate.  These are the correct OEM PIN diodes
for the Alpha 87A and 89 amplifiers.

Paul, W9AC

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