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bernbrue
Beiträge: 1128 Registriert: Do Jun 29, 2006 4:55 pm
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von bernbrue » Di Nov 13, 2007 5:33 pm
Hi,
could look like this:
regards
Bernd
[silent:arts]
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von [silent:arts] » Di Nov 13, 2007 5:53 pm
Looks good, but the Power Switch in the middle ???
and remember: to fit it in a 2U case, modifie the sockets of V104 / 204 (while you are there do V102 / 202 too).
volker
olafmatt hat geschrieben: Strom kann tot machen
waldorfcave
Beiträge: 265 Registriert: Sa Jun 03, 2006 6:26 pm
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von waldorfcave » Do Dez 13, 2007 5:32 pm
I started to stuff the nice pcbs.
Can i use 1/4 Watt resistors or should they be 1/2Watt as written in the
drip manual
r229,r129 and r134, r234 are 3 watt as written in the parts list.
[silent:arts]
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von [silent:arts] » Fr Dez 14, 2007 10:36 am
I used 1/4 Watt wtih no problems.
and I used 2W (with spacers) instead of 3W - they get a little hot, but it works.
volker
olafmatt hat geschrieben: Strom kann tot machen
bernbrue
Beiträge: 1128 Registriert: Do Jun 29, 2006 4:55 pm
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von bernbrue » Do Dez 20, 2007 5:45 pm
[silent:arts] hat geschrieben: to fit it in a 2U case, modifie the sockets of V104 / 204 (while you are there do V102 / 202 too).
Hi Volker,
for the tube sockets, what exactly do I have to do with them? Removing upper or lower part to reduce their height?
I've got these sockets:
regards
Bernd
[silent:arts]
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von [silent:arts] » Do Dez 20, 2007 5:55 pm
just remove the upper part (dremel works well):
Zuletzt geändert von
[silent:arts] am Fr Feb 11, 2011 8:30 am, insgesamt 1-mal geändert.
volker
olafmatt hat geschrieben: Strom kann tot machen
bernbrue
Beiträge: 1128 Registriert: Do Jun 29, 2006 4:55 pm
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von bernbrue » Do Dez 20, 2007 6:30 pm
Ah, I see, I thought I had to remove the upper part of the ceramic socket, so the upper parts of the pins have to be removed. Thx Volker.
regards
Bernd
[silent:arts]
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von [silent:arts] » Do Dez 20, 2007 6:39 pm
yes, only the upper part parts of the pins
gave me the 3 mm I needed (when using 5mm spacers - and is case dependent)
volker
olafmatt hat geschrieben: Strom kann tot machen
ChuckD
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von ChuckD » Sa Jan 05, 2008 11:07 am
Why did you go with the Solen 10uF caps instead of the TC72 Mallory?
Did you get a chance to compare the two?
Starting my BOM. HEy if anyone is interested I have finished sourcing the parts# for the Caps in North America. (Mouser and PartsConnexion)
Still can't believe we can get by with 1/4W resistors!
I'll post it up if there are any Folks beside me building one over here.
-ChuckD
[silent:arts]
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von [silent:arts] » Sa Jan 05, 2008 11:30 am
ChuckD hat geschrieben: Why did you go with the Solen 10uF caps instead of the TC72 Mallory?
Did you get a chance to compare the two?
no, haven't compared them. the easy answer is: I just used components I had arround, or where I knew I can buy them
I have no idea if there is any source for the Mallory in europe.
oh, and the 1/4W resistors work fine in my unit
(but remember the four 2W resistors)
volker
olafmatt hat geschrieben: Strom kann tot machen
ChuckD
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von ChuckD » Sa Jan 05, 2008 8:30 pm
Volker,
I have 4 older Mallory Caps (silver cans) that someone gave to me for free. Send me you address and I will mail you 2 of them! I will use the other two on mine. I measured them with my Fluke MM and 2 came out as ~13uF and the other 2 came out as ~12uF so I will pair them up that way.
Not sure if they are good. They are new old stock but they were free ... so.
I will throw them in the post for you.
-ChuckD
[silent:arts]
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von [silent:arts] » So Jan 06, 2008 12:04 am
hey Chuck,
if you don't need them - many thanks
volker
olafmatt hat geschrieben: Strom kann tot machen
bernbrue
Beiträge: 1128 Registriert: Do Jun 29, 2006 4:55 pm
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von bernbrue » Sa Jan 12, 2008 2:36 pm
Volker,
there are two resistors (R125,225) t o b e d etermined. They seem to be related to the GR meter. Assuming, I´ll take a Sifam VU, what are there values? What did you take there? Thx a lot.
Cheers
Bernd
[silent:arts]
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von [silent:arts] » Sa Jan 12, 2008 3:32 pm
Bernd,
this is the resistor Urei provided with each T4b.
rumors are they are always 33K (mine were both 33k).
volker
olafmatt hat geschrieben: Strom kann tot machen
ChuckD
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von ChuckD » Mo Jan 14, 2008 7:28 pm
I was about to ask the same question!
I'll go with 33K I guess.
-Chuck