[Boatanchors] Designing Isolation Xfmr; Need Advice

[J. Forster]

The 12V @ 5A will give you 60 Watts; the 24V @ 5A will give you 120 Watts.
I'd look for an isolation transformer on eBay or surplus.

There are idustrial control transformers with split windings (120/240 :
120/240) that can be wired as 120 V isolation transformers that often go
cheap by GE, Westinghoude, etc.

FWIW,

-John

=======



> Hi To All-
>
> I have several B.A.'s I want to check out... I would like to build an
> Isolation Transformer for safety. I need some ideas & have a few
> questions.
>
> I assume that there are two levels of such devices:
> 1. Testing receivers or tranceivers in receive mode. (low amp draw)and
> 2. Transmitters or transceivers transmitting (may be high amp draw)
>
> I wud like to build the former to start and to control costs.
>
> I understand I can use 2 back-to-back transformers that are equal, wired
> secondary side to secondary side.
>
> Wud I be better with: two 12 volt 5 amp transformers or two 24 volt 5 amp
> transformers (as an example)?
>
> Ideas on fusing?  Minimum Transformer size? Other guidelines?
>
> Many thanks to all.
>
> Happy Holidays!
>
> Ken AA8EE
> former call sign WB8EQO
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