Angela Instruments Online Catalog www.angela.com
Angela Tin
Foil Signal Capacitors For Tube Audio
Gear
Made for us by SCR (Societie Des Condensatueurs Record)
of
France. These capacitors feature special high tension, non inductive
windings,
comprising two tin foil bands separated by two polypropylene films. The
manufacturer claims that they are insensitive to humidity. The form of
these tin 'armament' capacitors is cylindrical with axial tinned oxygen
free copper leads. These caps are HEAVY in the hand! They scream,
"QUALITY!"
They bear some resemblance to the vintage signal caps found in premium
'50s tube gear. The outer jacket is black with the ANGELA logo (see
above)
printed in white. The ends are neatly sealed in jet black epoxy. We
think
these caps offer a much neater appearance in your chassis than Orange
Drops,
Xicon, Panasonic, etc. Operating temperature range is -25 degrees C to
+85 degrees C. Capacitance tolerance is 3% but typically measures less.
Consider these fine sounding NEW Angela/SCR tin signal capacitors as a
sonic upgrade over Orange Drops and other plastic caps found in tube
hi-fi
and guitar amps. To my ear, only paper in oil capacitors (especially
the
copper foil types...) offer richer sonics. Could it be that tin really
is a better plate material for audio capacitors than the commonly used
aluminum? You really should give these a spin in your next project.
SIZE =
LENGTH X DIAMETER. LEADS
= 1
&3/8
inches for .47 and above, 1 inch for .33 and below.
1. Angela/SCR Tin Signal
Capacitor
.022/630VDC, 7/8 inches x 1/4 inch. COOL TONE CAP FOR HUMBUCKERS. EACH
$7.
2. Angela/SCR Tin Signal
Capacitor .047/630VDC ,5/8 inches x 3/8
inches.
NICE TONE CAP FOR FENDER TELES, STRATS, P-BASSES, ETC. EACH $7.
3. Angela/SCR Tin Signal
Capacitor .1/630VDC, 1 inch x 3/8 inches. EACH $7.
4. Angela/SCR Tin Signal
Capacitor .22/630VDC, 1 & 1/8 inch x 1/2
inch. EACH $7.25.
5. Angela/SCR Tin Signal
Capacitor .33/630VDC, 1 & 1/8 inch x 5/8
inch. EACH $7.50.
6. Angela/SCR Tin Signal
Capacitor .47/630VDC,1.5 inches x 5/8 inches. EACH $8.
7. Angela/SCR Tin Signal
Capacitor .68/630VDC, 1.5 inches x 3/4 inches. EACH
$8.50.
8. Angela/SCR Tin Signal
Capacitor .82/630VDC,1.5 inches x 3/4 inches. EACH $9.
9. Angela/SCR Tin Signal
Capacitor 1uF/630VDC,1.5 inches x 7/8 inches. EACH $11.
Angela
Metalized Polypropylene Caps
Angela Metalized Polypropylene
Capacitors
Are Manufactured For Angela Instruments By SCR (SOCIETIE DES
CONDENSATEURS
RECORD) Of France. All Are 630VDC "PPE" Type Axial Lead Tubulars With
Epoxy
Resin Sealed Ends, Sturdy Solid Core Tinned Oxygen Free Copper Leads,
5%
Tolerance. Self Healing, Non Inductive, Moisture Proof, High Dielectric
Strength And Low Dissipation Factor. Excellent Alternative Choice For
Replacing
Electrolytics In Vintage Tube Audio Gear, Guitar Amps And Studio Gear.
Also Popular As An Economical Signal Path Alternative To Stock Mylars
And
Polyester Capacitors. Also Widely Used In High End/Pro Speaker
Crossovers. Why pay
more?
SIZE IS DIAMETER X LENGTH.
630VDC Angela Metalized Polypropylene Caps
.15uF/630VDC, .0001D.F., 9mm x
20mm. EACH $2.25.
.18uF/630VDC, .0001D.F., 10mm x
20mm. EACH $1.75.
.27uF/630VDC, .0001D.F., 11mm x
20mm. EACH $1.75.
.33uF/630VDC, .0001D.F., 12mm x
20mm. EACH $1.99.
.39uF/630VDC, .0001D.F., 12mm x
20mm. EACH $2.25.
.56uF/630VDC, .0001D.F., 14mm x
20mm. EACH $1.75.
.68uF/630VDC, .0001D.F., 15mm x
20mm. EACH $1.75.
.82uF/630VDC, .0001D.F., 14mm x
25mm. EACH $1.75.
1.2uF/630VDC, .0001D.F., 17mm x
27mm. EACH $2.25.
1.5uF/630VDC, .0001D.F., 18mm x
27mm. EACH $2.79.
1.8uF/630VDC, .0001D.F., 20mm x
27mm. EACH $2.30.
2.7uF/630VDC, .0001D.F., 20mm x
33mm. EACH $2.40.
5.1uF/630VDC, .0002D.F., 28mm x
38mm. EACH $2.95.
5.6uF/630VDC, .0002D.F., 28mm x
38mm. EACH $2.95.
6.8uF/630VDC, .0003D.F., 30mm x
38mm. EACH $3.80.
8.2uF/630VDC, .0003D.F., 30mm x
45mm. EACH $4.79.
12uF/630VDC, .0004D.F., 36mm x
45mm. EACH $4.79.
15uF/630VDC, .0004D.F., 36mm x
53mm.
EACH $6.79.
18uF/630VDC, .0004D.F., 37mm x
53mm. EACH $7.
22uF/630VDC, .0005D.F., 39mm x
58mm. EACH $8.
24uF/630VDC, .0005D.F., 40mm x
58mm. EACH $9.
33uF/630VDC, .0006D.F., 45mm x
65mm. EACH $10.50.
39uF/630VDC, .0006D.F., 49mm x
65mm. EACH $13.
SBE
Premium 716P Orange Drop Capacitors
SBE 716P Series
Premium Orange Drop
Polypropylene
Film & Aluminum Foil Signal Capacitors
Radial leads
but
easily adaptable to axial
mounting
for most 'point to point' wired tube audio circuits. SBE is the
successor
to Sprague, employing the same USA production facilities. The premium
716P
series has tinned solid copper leads, approx. 2" long. The 716P series
offer better quality/lower price than some of the highly touted
audiophile
plastic caps. Steve sez, "BEST BUY" for hi-fi and guitar amp fixin'.
The type 716P
Orange Drop is a high
performance
version of the popular 715P series. It is made from polypropylene and
aluminum
foil with solid tinned copper (as opposed to copper clad steel...)
leads
for the ultimate in high pulse current and high RMS current capability.
It is a pressed unit for better utilization of board space. The 600V
ratings
are single section, extended foil units allowing for high frequency,
high
current applications.
Capacitance
change with temperature is less
than
3% over the entire operating temperature range. The temperature
coefficient
is negative and virtually linear at 180 ppm/C over the temperature
range
of +25C to +105C. This characteristic means the Type 716P is suitable
for
matching with positive TC resistors and inductors to maintain circuit
stability.
Type 716P
Orange
Drop Capacitors are
conformally
coated with a flame retardent epoxy. The standard operating temperature
of these capacitors is -55C to +85C. Capacitors may be operated up to
+105C
provided the working voltage is reduced to 50% of the +85C rating.
The 716Ps have
a
10% tolerance, though
typically
less, and the maximum dissipation factor is 0.1%. Capacitors rated
below
1000 volts will withstand a d-c potential of 250% of rated voltage
applied
between terminals for not more than 5 seconds. D-C Life Test:
capacitors
are capable of withstanding a 500 hour life test at +85C at 150% of
rated
working voltage. A-C Life Test: 600VDC capacitors will withstand the
maximum
60 HZ voltage of 200 for a period of 500 hours at +85C. Straight tinned
solid copper leads measure approx. 2" long.
.001uF/600V,
marked "102".
EACH $.62
.0015uF/600V, marked "152".
EACH $.62
.0022uF/600V, marked "222". EACH $.86
.0033uF/600V, marked "332". EACH $.76
.0047uF/600V, marked "472". EACH $.72
.01uF/600V, marked "103". EACH $.80
.015uF/600V, marked "153". EACH $.96
.022uF/600V, marked "223" EACH $.1.25
.047uF/600V, marked
"473". EACH $1.25
.068uF/600V, marked "683" EACH $.99
.1uF/600V, marked "104". EACH $1.79
.15uF/600V, marked "154". EACH
$1.82
.22uF/600V, marked "224". EACH $1.99
.25uF/600V, marked "254". EACH $1.99
What's The
Difference Between Film/Foil And
Metallized Film Capacitors?
Film/Foil
capacitors consist of two plates of
metal (aluminum, copper, tin, etc.) foil, which act as the electrodes,
separated by a non-conductive material used as the dielectric (oil
impregnated
paper, polypropylene film, mylar film, polyester, polystyrene,
Teflon,
etc.). These materials are wound to form the capacitor section. The
wire
leads are welded directly to the metal foil. The foil can extend out on
both sides of the capacitor section, hence the term "extended foil
design"
applied to some capacitors (e.g. 715P/716P). In order to provide the
utmost
in dependability a sufficient thickness of dielectric film is
essential.
This construction criteria is the primary reason why the physical
dimensions
of Film/Foil capacitors are larger than that of the metalized (e.g.
SCR
CAPS...) types.
In contrast to
the Film/Foil capacitor, where
the electrode is an independent layer of aluminum foil, the electrode
for
the metallized film capacitor is an extremely thin layer of metal which
is vacuum deposited directly on the dielectric film. The wire lead is
connected
to the electrodes by means of metal spray applied to each end of the
capacitor
section, the lead is welded to this metal end spray. Metallized film
capacitors
are manufactured using a thinner dielectric film than that which is
used
in the same rated Film/Foil design. This is possible due to the self
healing
characteristics of the metallized film. Self healing or clearing
removes
a fault or short circuit in the dielectric film by vaporizing the metal
electrode surrounding the defect and isolating the area.
Several
advantages the Film/Foil capacitors
offer
over the metallized capacitors are their higher insulation resistance,
better capacitance stability, lower dissipation factor, low dielectric
absorption, high current carrying capabilities (high dv/dt rating) and
better high frequency performance. For these reasons, Film/Foil
capacitors
are preferred for audio signal applications in hi-fi and guitar amps
over
metalized foil types.
Confused By All
Of These Cap Choices? Here's
Steve's Picks...
1. High End Signal
Capacitor. Jensen Paper In
Oil Copper Foil. The standard aluminum foil version is almost as good,
as are similar Euro oil caps by Facon, Icar and others if you can find
them. These really do sound slightly better to me than Sprague Vitamin
Q and other venerable paper in oil signal capacitors. If you're really
broke but want to check out the paper in oil sound, scrounge some used
Qs from an old scope, etc. These things almost never go bad unless you
see oil leaking out of 'em. Prepare to be amazed at the sound. Due to
their
weight and case fragility I don't recommend the larger values (.22 and
up...) for guitar amps and other equipment subject to rough handling
and
frequent field repair unless you shock mount 'em with these
applications
in mind.
2. Affordable
Plastic Signal Capacitors. SBE 716P
Polypropylene
And Aluminum Foil Orange Drops, followed by the even less expensive
715P series.
Audionut suckers have been paying big bucks every day for almost twenty
years for 'designer' packaged
polypropylene/aluminum foil signal capacitors
that sound no better. Untold TONS of great sounding audio gear has been
built
over the years using Orange Drops in the signal chain; we used to be
thrilled
to find these at Hamfests before we got hip to paper in oils. On the
other
hand, some vintage/boutique guitar amp gurus report a slightly harsh
sound
from Orange Drop caps, compared to the N.O.S. mylars and other types. I
suspect that the hard epoxy outer coating used by SBE for thermal
stability and moisture resistance may be the source
of these subtle colorations? Years ago I encouraged SBE to experiment
with
softer
outer packaging with nothing forthcoming so far. Still, for affordable
repairs to hi-fi gear and most
guitar
amps you can't go wrong with SBE Orange Drops.
3. My Favorite
Affordable NEW 'Plastic' Signal
Capacitor For Studio Gear And Guitar Amps. Angela/SCR Polypropylene And
Tin Foil Signal Capacitors. These offer higher reliability , higher
temperature
stability and tighter tolerance than paper in oil caps. The sound,
while
not as wonderfully smooth and natural as paper in oils, is as
good
as you're likely to hear from a 'plastic' cap. I've heard plenty of
'audiophile'
plastic caps priced up to ten times as much that, despite the hype,
sound
no better. Consider these tin caps as an upgrade over 715P/716P,
polyester dielectric caps, etc. Use these with confidence in gear that
gets rough handling such as Marshalls, Fenders and other stage/studio
gear.
Also see my comments below about using these in guitar tone circuits.
4. N.O.S. Vintage
Signal Cap For Guitar Amps:
N.O.S. CDE Black Cat, Sprague Black Beauty. These are the same kind of
aluminum foil/paper/mylar tubular axial signal capacitors found in
beautiful
sounding classic gear like old Fender and Marshall guitar amps, Marantz
tube components from the '50s-'60s, etc. They don't measure as well as
modern polypropylenes etc. but they sure sound smooth, warm and mellow
in guitar amp circuits. On the minus side, the highs are rolled off and
the mids can sound a little recessed and grainy compared to better
quality
signal capacitors Some daring audio hobbyists in Japan and Europe still
use these in D.I.Y. hi-fi projects. Avoid used examples since these
caps
don't age well in service.
5. Guitar Tone
Control Caps. I use Jensen paper
in oil caps in most of my of my own guitars, although oils by
Sprague,
Gudeman and others also work fine. Angela/SCR Polypropylene And Tin
Foil
Signal Capacitors are another fine choice (see my comments above),
especially
if you don't have room for an oil cap. The sonic differences between
the
various types of guitar tone caps is fairly subtle unless you play with
the tone control backed off all the way for maximum high frequency
attenuation.
For restoration, I use N.O.S. mylar caps (Black Beauty, Black Cat,
etc.)
when I can find 'em; these old capacitors offer the vintage sound,
rolled
off and a bit grainy with a slightly recessed midrange. The most
popular
value for humbuckers and P-90s is .022, although .015 is wonderful for
that 'women tone'. Most Fender single coil guitar pickups work best
with
something in the .047 range, although .039 is becoming very popular.
For
basses, experimenting with values between .039 and .1 can be fun.
6. Speaker
Crossover Capacitors. Angela/SCR
Metalized
Polypropylene Capacitors.
7. Replacement For
Electrolytics. Angela/SCR
Metalized Polypropylene or Angela/ASC Metallized Polypropylene In Oil
if
you have the room.
8. Cathode
Bypass/Bias Filter/ETC. For Tube Amps.
Black Gate, Elna Cerafine, Nichicon Muse, Sprague Atom in that order.
9. Premium Power
Supply Electrolytic Types. Black
Gate followed by Elna Cerafine. Both types are now out of production
almost extinct as the aged and shrinking worldwide audiophile market
could not support their continued existence.
10. Power Supply
Electroltyic Caps For Vintage Guitar Amps.
Both LCR (now long out of production...) and Sprague Atoms (still made
today...) will preserve the original look and sound of
old Fender, Marshall, Ampeg, etc. We gotten good feedback about the
newer J.J.
electrolytics but they're still too new to offer much of a 'track
record'
for long term reliability. Many users also report good experience with
F&T German manufactured caps.
11. Picofarad Range
Signal Caps. We're still
looking. For guitar amps, ceramic discs (we don't sell 'em) may
actually
be the best choice but be very careful about the quality of the brand
you buy. Some of the
stuff
sold by lowball retailers is just trash; try to find some USA made
N.O.S.
For hi-fi and studio gear polystyrenes sound fine but too sensitive to
heat damage to use in some confined tube amp chassis. Old Western
Electric
micas are great if you can find 'em. Modern silver micas can sound
harsh
but are sometimes the only thing you can find in the needed values.
Some More
General Information About
Choosing
The Right Signal Capacitor For Your Project...
If you want
to compare the sonic character of
the various types of capacitors, my suggestion is to build a simple
'low
parts count' single-ended triode test amplifier like
one of the FREE projects included on the HOW TO pages of this site.
Experiment with the various
types
of capacitors in the main signal coupling position, usually a
.22/400-600VDC.
Record your impressions of the sound of the various types. What do you
hear? What do you like? The first thing you will probably notice is
that
some capacitors seem to emphasize certain ranges of the audible
spectrum
over others, although there are other aspects of reproduction. You will
probably find that some of the capacitors seem to let more information
through than others. Some caps will sound 'warmer' while others may
offer
wider bandwidth, especially more extended high frequencies. You may
also
note that some of the capacitors seem to offer more in the presentation
of rich even ordered harmonic content, others may sound 'lean'. Don't
drive
yourself crazy making endless comparisons; just try to figure out what
YOU like. Try everything you can get your hands on, including cheap
ceramic
disc types, electrolytics, oil caps, various kinds of plastic caps,
whatever.
Most new signal
capacitors, especially the
larger
paper in oil types, do seem to benefit somewhat from some minimal
break-in time;
less than eight hours in most cases. In my experience, a good cap
sounds
good from the git-go, improving slightly as the gear (and your ears...)
warm up.
Above find some
technical specifications for
the
edification of 'scope jockeys' and other folks who've requested such
information.
In my opinion, it's nice to know that these capacitors have "good"
specs
but none of this stuff really tells us which capacitor will offer
pleasing
sound in a real world tube audio circuit. The bottom line? Experiment
and
reach your own conclusions they're just as valid in this application as
anybody else's, including the 'golden eared' gurus.
Converting
uF to nF?
Some of you have old Marshalls and
other amps with signal capacitors marked 'nF' instead of 'uF'. To
convert nanofarads to microfarads divide the value in nF by 1000. For
example, 47nF divided by 1000=.047uF. To convert uF to nF just multiply
by 1000. Example, .1uF times 1000=100nF.
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