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A blast from the past (2005), The scrapped KSA-50 clone
A blast from the past (2005), The scrapped KSA-50 clone
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Old 29th November 2020, 08:24 PM   #21
kmj is offline kmj  Sweden
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Then I'm off to the recycling place tomorrow :-)
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Old 29th November 2020, 09:06 PM   #22
duncan2 is offline duncan2  United Kingdom
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Quote:
Originally Posted by jean-paul View Post
Hi that "UK wiring" is EU wiring. In the Netherlands since 1970 to be exact so even far before the EU was found.

Yes and the UK joined the EEC in 1973 courtesy of Ted Heath --sailor and PM .
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Old 29th November 2020, 09:09 PM   #23
jean-paul is offline jean-paul  Netherlands
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Let's call it dutch wiring then

Seriously: the dutch NEN1010 is the basis of many EU regulations.
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Old 29th November 2020, 09:48 PM   #24
duncan2 is offline duncan2  United Kingdom
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The Dutch are not bad at darts as well--
The Mighty Micheal van Gerwen .
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Old 30th November 2020, 12:58 AM   #25
indianajo is offline indianajo  United States
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I prefer TO-247 or 263 transistors to replace TO3. Unless I have a heatsink already drilled for TO3. Drilling 4 holes accurately with my hand motor is not doable, IMHO. The plastic packages require 1 hole. Salvage motor drive or flat screen tv heat sinks will be pre-drilled for TO-247 or TO-263. Probably with long life silicon rubber pads already stuck to them.
The do-all of plastic output transistors is the MJL21193 pnp MJL21194 npn. Also avalable in prefix NJL and NJW and MJW, for reasons I can't determine from the datasheets. I use all four prefixes interchangeably, with .51 ohm emitter resistors to even current out.
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Old 30th November 2020, 08:11 AM   #26
kmj is offline kmj  Sweden
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Well, the electrical company had some stuff in the junk pile.
A good start I think.
I put a fuse for size comparison.

I'll check back regularly
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Old 1st December 2020, 08:54 AM   #27
ferret is offline ferret  South Africa
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kmj - those are nice sinks. Wish I could find some lying around here. Best of luck with the rebuild.

Kevin
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