Subjects that don't have their own home
jack
Thermionic Monk Status
Posts: 5503 Joined: Wed Dec 29, 2010 8:58 pm
Location: ɐılɐɹʇsnɐ oʇ ƃuıʌoɯ ƃuıɹǝpısuoɔ
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Post
by jack » Fri May 07, 2021 10:55 pm
Yep. I used 4 of the same series (ALS30A) in the PSU of my
Quad 405-2 rebuild
They're cheaper at Farnell btw...
Last edited by
jack on Fri May 07, 2021 10:58 pm, edited 1 time in total.
Vivitur ingenio, caetera mortis erunt
Ali Tait
Eternally single
Posts: 4389 Joined: Fri Jun 08, 2007 8:10 pm
Location: Galashiels
Post
by Ali Tait » Fri May 07, 2021 10:55 pm
Yes need to check size, the originals are huge.
pre65
Amstrad Tower of Power
Posts: 21400 Joined: Wed Aug 22, 2007 11:13 pm
Location: North Essex/Suffolk border.
Post
by pre65 » Fri May 07, 2021 11:14 pm
Nearest I have is Kemet 47,000uf PEH200 but they are 63v and 85 degrees.
I only have two, but they won't be expensive.
IF 63v would do, and you have room for two, I also have a few Kemet 22,000uf PEH169 105 degrees, and they have an end stud, but it could be removed.
The only thing necessary for the triumph of evil is for good men to do nothing.
Edmund Burke
G-Popz THE easy listening connoisseur. (Philip)
Nick
Site Admin
Posts: 15754 Joined: Sun May 06, 2007 10:20 am
Location: West Yorkshire
Post
by Nick » Fri May 07, 2021 11:19 pm
The schematic I found suggests < 50v rails which seems about right for a 100w amp.
Whenever an honest man discovers that he's mistaken, he will either cease to be mistaken or he will cease to be honest.
pre65
Amstrad Tower of Power
Posts: 21400 Joined: Wed Aug 22, 2007 11:13 pm
Location: North Essex/Suffolk border.
Post
by pre65 » Sat May 08, 2021 10:51 am
I looked on Ebay and most of the PSU capacitors offered for the Krell amps are rated at 100V.
The only thing necessary for the triumph of evil is for good men to do nothing.
Edmund Burke
G-Popz THE easy listening connoisseur. (Philip)
Ali Tait
Eternally single
Posts: 4389 Joined: Fri Jun 08, 2007 8:10 pm
Location: Galashiels
Post
by Ali Tait » Sat May 08, 2021 12:48 pm
Thanks for the offer Phil, appreciated. May take you up on it, though I've a vague memory of buying some large Panasonics years ago that might fit the bill, I'll need to dig them out of storage to check.
ed
retired
Posts: 5384 Joined: Thu Jun 21, 2007 4:01 pm
Location: yorkshire
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by ed » Sat May 08, 2021 2:55 pm
chris661 wrote: ↑ Fri May 07, 2021 9:19 pm
Nice find.
Similar in weight to some of my older-model PA amps. There's a reason I moved across to class D.
Part of me wonders if those old amps could be converted to class A. Big PSU, lots of heatsink...
Chris
head scratching again...I thought the ksa100 was to all intents and purposes class A. How far do you have to drive it to get it out of class A?
There's nowhere you can be that isn't where you're meant to be
chris661
Shed dweller
Posts: 2559 Joined: Mon Feb 22, 2010 7:29 am
Location: Sheffield
Post
by chris661 » Sat May 08, 2021 3:02 pm
Ed,
I more meant that my old PA amps could be converted to class A.
Chris