[AMRadio] DX60 modulator chassis ready to go

Mike Dorworth, K4XM k4xm at arczip.com
Sat Mar 18 18:43:39 EST 2006

The circuit is a patented design and appears in the Bill Orr Handbooks, The
CQ Mobile handbooks and others. The circuit is class B and is suitable to
the KW level with 813's and other large tubes. The driving power is low but
the voltage is higher. Also the Jones VHF handbook has several examples of
this circuit , perhaps the exact one you have. Mike
----- Original Message -----
From: "John Lyles" <jtml at losalamos.com>
To: <amradio at mailman.qth.net>
Sent: Saturday, March 18, 2006 5:55 PM
Subject: [AMRadio] DX60 modulator chassis ready to go

> This modulator is not exactly like the 1952 nor the 1959 ARRL HB 807
modulators. It appears to be a class B modulator, > Has anyone seen this
particular design commercially made years ago, or in any articles? It
appears quite compact, and with the cathode followers to the 807s, reminds
me of the audio lineup of a Gates BC1G, with 807s driving 833s that way.

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