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 32volt power supply
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 Return to top of page · Post #: 1 · Written at 10:49:32 PM on 8 August 2018.
Viccadillac's Gravatar
 Location: Perth, WA
 Member since 7 May 2012
 Member #: 1140
 Postcount: 149

Hello members,

I am looking for suggestions before I construct a 32 volt power supply to run this QP radiogram I am repairing . Does anyone know of or used a ready made one ? This is for the customer to use or if I can fit it in the cabinet.


 Return to top of page · Post #: 2 · Written at 12:37:34 PM on 14 August 2018.
Ian Robertson's Gravatar
 Location: Belrose, NSW
 Member since 31 December 2015
 Member #: 1844
 Postcount: 1427

A universal laptop brick might be OK but you'd need to check the RFI performance - depending on the AM field strength in your area.
Many SMPS power supplies have an internal pot you could adjust to get from 29 volts to 32 volts.

If you are going to build it in this might work for you.


This brand is normally fairly electrically quiet and although it's sold as a 24V supply the actual voltage output can be adjusted with a pot.

 Return to top of page · Post #: 3 · Written at 3:55:43 PM on 14 August 2018.
GTC's avatar
 Location: Sydney, NSW
 Member since 28 January 2011
 Member #: 823
 Postcount: 5427

This looks made to order:

QUOTE: Power your 32 volt farm radio from the AC line. This little unit will power the 1930s vintage radios designed for 32 volt DC operation.

2 versions are available (2.5 Amp or 3.2 Amp), most 32 volt sets will work with the 2.5 amp version. Universal line voltage operated, the regulated supply will provide 32 volts (+ - 1 volt) DC . 2.5 or 3.2 amps continuously from any line voltage from 105 - 250 volts AC.

You may use this to operate any devise requiring a fixed 32 volt DC supply. These are brand new using modern, extremely quiet, low heat with no radiated radio noise. They utilize modern switch mode type, low power electronics.


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