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Old 11th April 2008, 04:34 AM   #1
gni is offline gni  United States
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Default Decware MODEL SE84C-DIY

At last, a DIY Kit from Decware that's affordable! Only $299

Some changes from the regular SE84C:

Solid State rectification Vs Tube rectification

Circuit board Vs Point-to-Point wiring

Assembly instructions lack some important steps
but okay for those with tube amp building experience.

The assembly instructions also include specs from the
standard model including wording stating that the unit
is point-to-point wired while it is a circuit board model.

Looking forward to seeing other opinions on the newest
entry into the kit tube amps.

Chris
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Old 11th April 2008, 05:00 AM   #2
doorman is offline doorman  Canada
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The "iron" in these kits is very good!
Don
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Old 11th April 2008, 05:18 AM   #3
gni is offline gni  United States
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That is good to hear that the iron is good. . . custom made
should be good. . .most expensive part of the price.
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Old 11th April 2008, 07:08 AM   #4
jduffy is offline jduffy  United States
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So that's what the missing tube is eh?

I don't see a problem with that. I like diodes better anyways.

Not bad for the money, a bit cheaper than Bottlehead's offering.

Let the cheap tube kit amp wars begin!
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Old 11th April 2008, 08:56 PM   #5
gni is offline gni  United States
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I agree. . .cheaper kits would be nice. . .since most of the cost
is usually in the labor supplied by the buyer. Unless it is very
special iron in the transformers.

Solid state rectifiers are just as easy to change out as a tube
rectifier; they drop less voltage and run cooler.
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Old 26th July 2008, 10:37 PM   #6
gni is offline gni  United States
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DECWARE se84cDIY [$299 w/o tubes] +($50)
(Cost to buy individual parts)

PS
(2) 1N4007 1000V PIV 1A [$0.10 x 2]
(1) 1KΩ 6W [$0.39 Wirewound 10W]
(1) 6.8KΩ 2W [$0.50*]
(2) 33µF 450V [$5.50 x 2]
(2) 20µF 250V [$4.00 x 2]
(1) 300-0-300 / 150 ma 6.3 VCT / 5A
[Hammond 272FX $60 146VA]
[Hammond 372FX $87 150VA]
(1) FUSE Holder [$1.50*]
(1) 3 A FUSE [$0.50*]
--------------------------------
$83.00
--------------------------------
AMP
(2) 0.1µF 400V POLY SIGNAL [Dayton 0.10uF 400V $0.90 x 2]
(2) 3.3µF Poly [Dayton PMPC-3.3 3.3uF 250V $3.50 x 2]
(1) 1000µF 25V [$2.00*]
(1) 150Ω 5W [$0.24 Wirewound 5W]
(4) 1.0KΩ 1/2W [$0.55 10pk Flameproof Metal Oxide Film]
(2) 1.0KΩ 2W [$0.24 Wirewound 5W]
(2) 1.5KΩ 1/2W [$0.55 10pk Flameproof Metal Oxide Film]
(2) 2.7KΩ 1/2W [$0.55 10pk Flameproof Metal Oxide Film]
(2) 10KΩ 1/2W [$0.55 10pk Flameproof Metal Oxide Film]
(2) 47KΩ 1/2W Carbon [$0.50*]
(2) 330KΩ 1/2W [$0.55 10pk Flameproof Metal Oxide Film]
(2) 100KΩ POT [$3.00 x 2*]
(3) 9-pin mini Ceramic pc mount socket [$2.00 x 3]
(2) 9800Ω PRI / 6Ω SEC
[Hammond 125DSE 10 Watts $35]
[Hammond 1638SEA 30 Watts $120]
----------------------------------------------------
$90.00
----------------------------------------------------

TUBES
(2) EL84(6BQ5), SV83(6P15P-EV) OUTPUT [$15 x 2]
(1) 6922, 6N1P, 6DJ8 INPUT [$13]
6N1P-EV military spec
(6N1P=higher filament current than 6DJ8)

-----------------------------------------------------
$50.00
-----------------------------------------------------

$223 + case/power cord/feet/RCAs/Binding Posts/board would
probably be more than $300.

Steve has put together a great kit. It includes the
board but lacks the tubes. . .so Steve's kit would be close
to $400 with tubes and shipping!

PS attached
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Old 26th July 2008, 10:53 PM   #7
gni is offline gni  United States
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Here is the main schematic. . .redrawn to how I like it. . .
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