[Icom] 706 MKII keying & using amp???

Tue, 31 Dec 2002 17:29:49 -0800 (PST)

TNX for the replies. I inadvertently typed "707"
instead of "706" in the body of my message. I assume
the response would be similar.
Larry, W3UIO

--- Adam Farson <[email protected]> wrote:
> Hi Larry,
> 
> The IC-706 has a reed-type keying relay. (PIN diodes
> are never used for DC
> switching applications such as this.) You can view
> the schematic here (you
> will need the DjVu plug-in from
> http://www.lizardtech.com)
> 
> http://hamradio.online.ru/ftp/sch_ic707.djvu
> 
> If you have access to the Alpha 76CA, you should be
> able to measure the
> keying voltage and current. The 16V/0.5A rule still
> applies, although the
> IC-707 should be safe with the older Alpha spec of
> 27V/7mA.
> 
> Cheers for now, 73, Happy Hogmanay,
> Adam VA7OJ/AB4OJ
> 
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]]On
> Behalf Of W3UIO
> Sent: Tuesday, December 31, 2002 16:37
> To: [email protected]
> Subject: [Icom] 706 MKII keying & using amp???
> 
> 
> 1. Does the 707 key with the proverbial relay or pin
> diodes?
> 2. Wonder about keying an Alpha 76CA amp (not recent
> vintage) without a buffer circuit.
> 
> =====
> Larry, W3UIO
> 
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> ----
> Your Moderator: Dick Flanagan W6OLD,
> [email protected]
> Icom Users Net: Sundays, 1700Z, 14.315 MHz
> Icom FAQ: http://www.qsl.net/icom/

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