Sylvain VAN DER WALDE wrote:
Hello all.

I have this electric drill which is approx. a couple of years old (so
I suppose we're dealing with Nicads).
The charger unit consists of a a plug-in transformer with a 4-diode
bridge (on a pcb) being located in the adapter. The markings on the
transformer a Output DC: 14.5 Volts, 220 Ma, 3.2 Va .
The transformer is faulty (open circuit primary winding/connections).
I've been unable to open the transformer housing (no screws, and a
very tough casing).
My question is: I would like to use an alternative transformer (cased
preferrably), to replace the faulty one. I understand that in order to
supply the 220 ma to the battery, the VA rating is important.
Can you suggest a suitable AC transformer? I know that such a
transformer without a load can give several more volts (12v = 15 v).
Also, to keep to approx. 220 ma, might a 12 v transformer with a
higher VA do, or what else might do?
I don't normally have problems with the "usual" transformers, but
this is somewhat different.

All info/advice will be highly welcome.

Thanks in advance.

P.S. I'm a regular reader of this group, and know that this question
is not entirely off-topic.

Sylvain.

See how much a replacement is?
http://www.toolshopdirect.co.uk/parts/list
--
Sir Benjamin Middlethwaite