[Boatanchors] Question,voltage multiplier circuit?

[wabate]

Joe,

I have the 1966 version of the Handbook and the circuit is corrected in 
there.  There is a phone jack connected to the + end of the voltage 
divider.  You are supposed to short it to ground.

BTW, I built that modulator.  It worked great during my AM days.  I even 
added a speech clipper circuit.  Still got it somewhere.

73 es GL,
Bill, K3PGB

Joe Walden wrote:
>>From Joe w5jdy in Okla.  I have a 1962 Radio Amateur Handbook and on page
> 274 in the Modulator Section there is a bias circuit on the lower section of
> the schematic...   First I don't see how it could work without some kind of
> chassis  ground  and also it appears to be sending positive voltage to the
> external bias plug..  There is a good chance I just don't understand the
> circuit...  This circuit appears in some later handbooks also...  The
> circuit is for "A 50-Watt Class AB1 Modulator" using four 1625's...  Joe
> 
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