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Old 10th June 2008, 07:17 AM   #1111
jacco vermeulen is offline jacco vermeulen  Netherlands
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Cool, there's a DIY-Girl F5 builder on the Thai list.

(makes me wonder if there's an ex-Threshold JP lady soldering on the kitchen effort when the Master is having one of his Cali Cabernet hangovers again)
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Old 10th June 2008, 12:44 PM   #1112
jackinnj is offline jackinnj  United States
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F5 power amplifier
Here's a modification -- I put in 2 vias on each resistor lead -- 75 mil diameter, 39 mil drill, spaced 600 mils.

Click the image to open in full size.
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Old 10th June 2008, 12:48 PM   #1113
tms0425 is offline tms0425  United States
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Thanks Jack!
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Old 10th June 2008, 02:21 PM   #1114
neutrino_th is offline neutrino_th  France
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Hi

"Yes. The B1 is scheduled beginning of July."

Anybody can tell me more about this new project? I'm impatient...
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Old 10th June 2008, 02:26 PM   #1115
danny_66 is offline danny_66  Belgium
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http://www.firstwatt.com/watts_new.htm
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Old 10th June 2008, 02:28 PM   #1116
Zen Mod is online now Zen Mod  Serbia
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F5 power amplifier
Quote:
Originally posted by neutrino_th
Hi

"Yes. The B1 is scheduled beginning of July."

Anybody can tell me more about this new project? I'm impatient...

naah .......

just a fancy hair - dryer ..............

just go and buy cheap chinese one ......... it's cheaper and hotter ......


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Old 10th June 2008, 02:35 PM   #1117
stefanobilliani is offline stefanobilliani  Italy
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Quote:
Originally posted by danny_66
http://www.firstwatt.com/watts_new.htm

WOW
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Old 10th June 2008, 03:02 PM   #1118
Tea-Bag is offline Tea-Bag  United States
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Quote:
Originally posted by tms0425
The Mills 5w is 0.17" dia x 0.562" body, 0.032" lead dia.
Mills 5w from PartsConnexion

I didn't compute it but assume a single 5w 100r would be enough(?)

Parallel 100ohms = one 50 ohms. Buy a mills 50ohms. (actually four for two channels)
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Old 10th June 2008, 03:10 PM   #1119
neutrino_th is offline neutrino_th  France
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Thanks danny_66.

"The B4 Crossover / Equalizer has been designed around the needs of full range speakers (Lowther, Fostex, and all the newer entries). It has circuitry for equalizing to the needs of full range drivers and for adding a woofer."
perfect for my Fe206.
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Old 10th June 2008, 03:18 PM   #1120
tms0425 is offline tms0425  United States
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Quote:
Originally posted by mithomas



Parallel 100ohms = one 50 ohms. Buy a mills 50ohms. (actually four for two channels)
Of course, but I just wanted to make sure you don't need that much dissapation for some reason not obvious to my tiny brain. Since it is just feedback I doubt it. Likely the 100r 3w are just what Nelson had a lot of so there are two ;-)
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