Bill -

At a line voltage of 120 VAC, you should see about 740V no load.   With idle
current ~70 mA, should read about 715 - 720, and at full load (~350 mA)
should be 650 - 660V.

The diodes are in a voltage doubler configuration.

73, Garey - K4OAH
Atlanta

----- Original Message ----- 
From: "Gailey, Bill" <[EMAIL PROTECTED]>

>
> In my efforts to update a TR-4 and early AC-4 supply, I've been working in
> low voltage areas so far (60 and 250).  Just discovered that HV line out
of
> the AC-4 is running approx. 740-744 volts D.C. "unloaded" by the TR-4.
The
> HV line still has original electrolytics.  It looks like someone has
> replaced the rectifier diodes along the way. Now 1N4007s in a bridge
> arrangement.  Does this voltage level sound right?  Have not yet measured
> the voltage under load.
>
> Thanks,
> Bill
> KG4KKI
>

----------------------------------------------------------------------
Submissions:        [EMAIL PROTECTED]
Subscribe:          [EMAIL PROTECTED] - subscribe drakelist in body
Unsubscribe:        [EMAIL PROTECTED] - unsubscribe drakelist in body
Hopelessly Lost:    [EMAIL PROTECTED] - help in body of message
Brought to you courtesy of TLCHost.net  http://www.tlchost.net/
----------------------------------------------------------------------

Reply via email to