Bremi BRL200 27-28Mhz Linear Amplifier - Page 3 - UK Vintage Radio Repair and Restoration Discussion Forum

Richard - F4VPR · 29th Dec 2019, 12:07 pm

Quote:

Originally Posted by crackle

WARNING
To any one else working on these amps please BE WARNED there is nearly 1000v DC floating around inside the chassis and under some conditions the capacitors can remain charged for hours after turning off.
Mike

Off topic, but may I strongly underline this warning.

Last year we lost a young and quite competent club member to just this, several kV on a very good cap was sufficient with the equipment isolated and disconnected.

You may look up F4HQA. Be warned.

R.

MrBungle · 29th Dec 2019, 12:18 pm

Yes since my interest stated earlier the high voltage shivers came in and I’ve abandoned my HF modification motivation. Honestly it sits in my mind something that Bill Meara said on soldersmoke podcast. He has family now. It makes him think twice about old HV stuff.

A couple of MRF101’s or IRF510’s and an SMPS are a lot safer. Most nasty situations are covered with some safety glasses for the bits of MOSFET to bounce off

29th Dec 2019, 12:18 pm	#42
MrBungle Dekatron Join Date: Jun 2016 Location: London, UK. Posts: 3,687	Re: Bremi BRL200 27-28Mhz Linear Amplifier Yes since my interest stated earlier the high voltage shivers came in and I’ve abandoned my HF modification motivation. Honestly it sits in my mind something that Bill Meara said on soldersmoke podcast. He has family now. It makes him think twice about old HV stuff. A couple of MRF101’s or IRF510’s and an SMPS are a lot safer. Most nasty situations are covered with some safety glasses for the bits of MOSFET to bounce off