[Boatanchors] Homebrew Power Supply

[Ian Wilson]

Hi Joe,

The corresponding power supply for the A-54 is the PSA-500. This uses
a 500-0-500V transformer with a 5Z3. The specs say it will deliver 380VDC
at full load on phone and about 400VDC on CW.

The 54 and 67 have very similar schematics except that the '67 uses a
6146 for output instead of an 807.

Hope this helps,

73, ian K3IMW



On Mon, Apr 8, 2013 at 11:08 AM, Joe Walden <w5jdy at cox.net> wrote:

> Hello,from Joe w5jdy in Okla...   I am in the process of building a power
> supply for a Multi Elmac Transmitter model AF-67 and the Receiver PRM-7....
> The particular specs I need is the power transformer secondary voltage
> ?ac-0-?ac....  This voltage is rectified with a solid state bridge and has
> a
> 16 mfd input filter capacitor.......  I need the output voltage to be 500
> vdc at 250 ma...   Any suggestions appreciated...     w5jdy at cox.net
>
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