cap job myself

[mhuss]

I'm still a bit confused. Did you mean you left the original tubular cap in place?

[jujub]

yes the bias one( normally a 100µF) the other 4 where replaced.

[mhuss]

I would go ahead and replace it since you're done the rest of them. Electrolytics have a definite life span, and 40 years is probably pushing it!

--mark

[jujub]

Just been done....I'm rediscovering the amplifier ! thanks !

[durike]

can you please help me which F&T caps to order? there are too many types http://www.hificollective.co.uk/compone ... itors.html
I want to recap DR103 and DR201.

[durike]

no ideas on F&T caps? also if anyone knows good source of them in europe.

[Dr.HI-TONE]

for the 201 you will need:
five 100uf 450v. cans THese are difficult to find so you may need to use 50+50uf caps
one 50+50uf 500v. can
one 100uf 100v. axial cap

for the DR103:
one 16+32 or 32+32 450 or 500v. can
one 50+50uf 500v. can
three 220uf 385v minimum cans
one 100uf 100v. axial cap

all of these are already inside your amps, if you opened them up you could make a list.

[durike]

thank you. yes I can figure out values myself. but there are just too many types here: http://www.hificollective.co.uk/compone ... itors.html

[mhuss]

You want the LF series for the two-terminal ones and LFAZ for the lone three-terminal one. Type A for the bias cap.

[durike]

thank you all. as you can see on the photo, change has to be done very soon I think.
they have those 100uF 450V http://www.hificollective.co.uk/catalog ... citor.html
or TAD has siemens http://www.tubeampdoctor.com/en/shop_Ca ... adial_4352
but I think I order that F&T since you recommend them. at first I thought about JJ as they are made in my home country...

[jujub]

Sorry for interrupting Can I change the bias cap in my SA212 from a 250UF to a 220uF? 100V or should I Go higher (I have a 100uF but I don't think It Will fit, does it?)

[Dr.HI-TONE]

the bias cap in your SA212 should be a 150 uf axial cap on the power board.

[jujub]

Ok but execpt the recap the amp id still original (so is the bias cap) and à 250 uF is found.

Soir should replace it by a 150 or a 100...or a 220 ???

Many Thanks

[Dr.HI-TONE]

a 150uf would be best for a 50 watt SA212

[mhuss]

220 is fine too. The bias cap is one of those positions where the value is not critical, as long as it doesn't go too low.

So, 150 if you want to be 'accurate' historically, but 220 is fine if you have one (or can get one) easily.