Ekco Battery Eliminator. - Page 2 - UK Vintage Radio Repair and Restoration Discussion Forum

GMB · 31st Jul 2007, 5:53 pm

I would have thought the HT supply would be fairly safe as even a large error is not going to cause immediate destruction.

LT supplies are as dangerous as the source voltage which means a transformer and loads of smoothing can be safer than a modern regulator chip which must be supplied with a much higher voltage. The problem with series regulators is that they can fail short-circuit hence the crow-bar circuit is essential.

31st Jul 2007, 5:53 pm	#21
GMB Dekatron Join Date: Aug 2003 Location: near Reading (and sometimes Torquay) Posts: 3,094	Re: Too many volts! I would have thought the HT supply would be fairly safe as even a large error is not going to cause immediate destruction. LT supplies are as dangerous as the source voltage which means a transformer and loads of smoothing can be safer than a modern regulator chip which must be supplied with a much higher voltage. The problem with series regulators is that they can fail short-circuit hence the crow-bar circuit is essential.